Intracranial lesion positioning method

Abstract

The invention discloses an intracranial lesion positioning method. The intracranial lesion positioning method comprises the following steps: S1, fixing the intracranial lesion positioning device on the head of a patient; the intracranial lesion positioning device comprises three positioning rulers capable of leaving position graphic marks under CT / MRI scanning, the three positioning rulers are defined as the first positioning ruler, the second positioning ruler and the third positioning ruler respectively, the first positioning ruler is distributed in the circumferential direction of the head of a patient, the second positioning ruler is distributed in the front-back direction of the head of the patient, and the third positioning ruler is distributed in the left-right direction of the head of the patient. The first positioning rule is connected end to end, and the second positioning rule and the third positioning rule are both connected to the first positioning rule; s2, acquiring an iconography film, with a position graphic mark, of the patient; and S3, according to the position graphic mark on the focus boundary film, confirming the scale identification area where the position graphic mark is located, and then confirming the specific position in the scale identification area. According to the intracranial lesion positioning method, the lesion boundary and the lesion maximum surface can be accurately positioned without depending on doctor experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intracranial lesion positioning, in particular to an intracranial lesion positioning method. BACKGROUND

[0002] In the minimally invasive treatment of intracranial tumors, hematomas and other lesions, whether it is a microscope, an external mirror, an endoscope or a stereotactic puncture, positioning must be achieved within a millimeter range: once the surgical channel deviates by a few millimeters, it may injure the functional area or cause residual lesions. Therefore, precise positioning has become a decisive link between the safety boundary and the efficacy boundary of minimally invasive surgery.

[0003] Young doctors lack experience and cannot effectively convert two-dimensional CT / MRI tomographic images into three-dimensional spatial reconstruction, resulting in inaccurate positioning of lesions, the need for repeated positioning, and ultimately long preoperative positioning time, inaccurate positioning, and the impact on the next step of surgery. Although the neural navigation system can accurately position, it is expensive, complex, and difficult to operate, making it difficult to promote in primary hospitals. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an intracranial lesion positioning method that does not rely on the experience of doctors and can accurately position.

[0005] To solve the above problems, the present application provides an intracranial lesion positioning method, which comprises the following steps: S1, fixing an intracranial lesion positioning device capable of leaving a position pattern mark under CT / MRI scanning on the head of a patient; the intracranial lesion positioning device comprises three positioning rulers capable of leaving a position pattern mark under CT / MRI scanning, which are defined as a first positioning ruler, a second positioning ruler and a third positioning ruler, the first positioning ruler is distributed circumferentially around the patient's skull, the second positioning ruler is distributed front and back around the patient's skull, and the third positioning ruler is distributed left and right around the patient's skull, the first positioning ruler is connected at both ends, and the second positioning ruler and the third positioning ruler are connected to the first positioning ruler;

[0006] S2, obtaining an image of the patient with a position pattern mark;

[0007] S3, confirming the lesion boundary and the largest surface of the lesion according to the position pattern mark; according to the position pattern mark on the lesion boundary sheet, confirming the scale mark area where the position pattern mark is located, and then confirming the specific position in the scale mark area.

[0008] Further, the positioning ruler comprises a developing part and a scale part with scales, the developing part has position pattern marks capable of being displayed under CT scanning, and the scale part is fixed on the developing part; the developing part comprises a fixed base plate, developing components, partition developing pieces and distinguishing developing pieces, the fixed base plate is divided into four developing zones, the distinguishing developing pieces and two groups of developing components are arranged in each developing zone, and the distinguishing developing pieces are arranged side by side with one group of developing components; the scale part comprises a scale base plate, position scale marks and partition scale marks, the scale base plate is divided into a plurality of scale mark zones, the number of the scale mark zones is equal to the number of the developing zones, each scale mark zone is divided into a plurality of standard scale units, and the position scale marks are arranged in each standard scale unit; and the partition scale marks are arranged between the standard scale units.

[0009] Further, the four developing zones are defined as a first developing zone, a second developing zone, a third developing zone and a fourth developing zone, the four scale mark zones are defined as a first scale mark zone, a second scale mark zone, a third scale mark zone and a third scale mark zone, and the method for confirming the scale mark zone is as follows: starting from the first film, the partition scale marks are observed, and the film on which the lesion first appears is found; if the cross-sectional position pattern marks of the first partition developing piece and the third partition developing piece do not appear before the film on which the lesion first appears or the film on which the largest surface of the lesion appears, it is confirmed that the film is located in the second developing zone and the third developing zone, the corresponding position scale marks are found according to the position pattern marks of the film, that is, the position pattern marks correspond to the second scale mark zone and the third scale mark zone; if the cross-sectional position pattern marks of the first partition developing piece and the third partition developing piece appear before the film on which the lesion first appears or the film on which the largest surface of the lesion appears, it is confirmed that the film is located in the first developing zone and the fourth developing zone; and thus the scale mark zone in which the corresponding film is located is confirmed.

[0010] Further, a plurality of standard scale units are arranged in each scale mark zone, and a plurality of scale lines are arranged in each standard scale unit; the method for confirming the specific position in the scale mark zone is as follows: the CT / MRI scanning thickness and the number of films from the first film in the scale mark zone to the film before the film on which the lesion first appears are obtained, the product of the thickness and the number of films is obtained, the distance from the lesion boundary or the largest surface of the lesion to the starting position of the scale mark zone is obtained, and then the corresponding scale line is found according to the distance.

[0011] Further, a plurality of standard scale units are arranged in each scale mark area, and each standard scale unit is provided with a plurality of scale lines.

[0012] Further, each developing assembly comprises four position developing pieces, the four position developing pieces are arranged along the length direction of the developing area, the four position developing pieces are arranged with a same distance of displacement in the length direction of the developing area, and the cross-sectional shape of at least one position developing piece is different from that of the other position developing pieces.

[0013] Further, the three position developing pieces are cylindrical, and the remaining one position developing piece is rectangular.

[0014] Further, the length of the distinguished developing piece is greater than the length of the whole developing assembly, and the difference between the length of the distinguished developing piece and the length of the whole developing assembly is equal to the distance of displacement.

[0015] Further, the scale substrate is further provided with letter marks.

[0016] Further, a plurality of scale lines are uniformly arranged in each standard scale unit.

[0017] The intracranial lesion positioning method can find the corresponding scale position according to the graphic mark, and the scale position is the lesion boundary and the largest lesion surface, so that the lesion boundary and the largest lesion surface of the patient's head can be accurately corresponded, without relying on the experience of doctors. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a preferred embodiment of the intracranial lesion positioning device.

[0019] Figure 2 is a structural schematic diagram of the first connecting head and the second connecting head arranged on the first positioning ruler.

[0020] Figure 3 is a structural schematic diagram of the second positioning ruler.

[0021] Figure 4 is a structural schematic diagram of the third positioning ruler.

[0022] Figure 5 is a structural schematic diagram of the first connecting head.

[0023] Figure 6 This is a schematic diagram of the second connector.

[0024] Figure 7 This is a schematic diagram of the developing section.

[0025] Figure 8 This is a schematic diagram of the structure of a single developing area.

[0026] Figure 9 This is a schematic diagram of the scale section.

[0027] Figure 10 This is a structural diagram of a single scale marking area.

[0028] Figure 11 This is a schematic diagram of the positional graphic markings on an imaging film.

[0029] Figure 12 This is a schematic diagram of the structure marking the boundary of the lesion.

[0030] Figure 13 This is a flowchart of the intracranial lesion localization method of the present invention.

[0031] The meanings of the labels in the attached diagram are as follows:

[0032] First positioning ruler 1, developing section 11, fixed substrate 111, position developing component 112, partition developing component 113, distinguishing developing component 114, gel 115, scale section 12, scale substrate 121, position scale mark 122, partition scale mark 123, first developing area 101, second developing area 102, third developing area 103, fourth developing area 104, first scale mark area 105, second scale mark area 106, third scale mark area 107, fourth scale mark area 108, second positioning ruler 2, third positioning ruler 3, first connector 4, first connector body 41, first locking tongue 42, second locking tongue 43, second connector 5, second connector body 51, third locking tongue 52. Detailed Implementation

[0033] The invention will now be further described with reference to the accompanying drawings.

[0034] like Figures 1 to 4As shown in the drawings, the intracranial lesion positioning device comprises a first positioning ruler 1, a second positioning ruler 2 and a third positioning ruler 3. The first positioning ruler 1 is used to be circumferentially attached to the patient's head. The second positioning ruler 2 is fixed on the first positioning ruler 1. The third positioning ruler 3 is fixed on the first positioning ruler 1. The second positioning ruler 2 and the third positioning ruler 3 are cross arranged. The second positioning ruler 2 is attached to the patient's head along the front-rear direction of the patient's head. The third positioning ruler 3 is attached to the patient's head along the left-right direction of the patient's head. The first positioning ruler 1, the second positioning ruler 2 and the third positioning ruler 3 are all used to display position graphic marks under CT / MRI scanning. The first positioning ruler 1 and the second positioning ruler 2 display position graphic marks on the radiographic film when scanned in the CT front-rear direction. The second positioning ruler 2 and the third positioning ruler 3 display position graphic marks on the radiographic film when scanned in the CT / MRI head-foot direction. The first positioning ruler 1 and the third positioning ruler 3 display position graphic marks on the radiographic film when scanned in the CT left-right direction. The first end of the first positioning ruler 1 can be fixed to form a ring by using adhesive or other sticky materials. The second positioning ruler 2 and the third positioning ruler 3 are both fixed on the first positioning ruler 1 by using adhesive or other sticky materials.

[0035] In order to adjust the first positioning ruler 1, the second positioning ruler 2 and the third positioning ruler 3 to adapt to different sizes of the head, a first connecting head 4 is arranged at one end of the first positioning ruler 1. The first connecting head 4 is located at the front side of the head. The first connecting head 4 is used to fix the other end of the first positioning ruler 1 to form a closed ring. One end of the second positioning ruler 2 is fixed and connected with the first connecting head 4. The other end of the second positioning ruler 2 is fixed on the first positioning ruler 1. Two second connecting heads 5 are arranged on the first positioning ruler 1. The second connecting heads 5 are located at the left and right sides of the head. The two ends of the third positioning ruler 3 are connected in the second connecting heads 5. The first connecting head 4 and the second connecting head 5 are both one-way adjustable, that is, only the effective length of the first positioning ruler 1, the second positioning ruler 2 and the third positioning ruler 3 can be adjusted.

[0036] As shown in the drawings, Figure 5 The first connecting head 4 comprises a first connecting body 41, a first lock tongue 42 and a second lock tongue 43. The first connecting body 41 has a first fixing hole and a second fixing hole. The first fixing hole is used for inserting the first positioning ruler 1. The first lock tongue 42 is used to one-way limit the first positioning ruler 1, that is, the first positioning ruler 1 can only move in one direction and cannot move reversely. The second fixing hole is used for inserting the second positioning ruler 2. The first lock tongue 42 is arranged in the first fixing hole. The second lock tongue 43 is used to one-way limit the second positioning ruler 2, that is, the second positioning ruler 2 can only move in one direction and cannot move reversely.

[0037] As shown in the drawings, Figure 6As shown, the second connecting head 5 comprises a second connecting body 51 and a third locking tongue 52, the second connecting body 41 is provided with a third fixing hole for inserting the third positioning ruler 3, and the third locking tongue 52 is used for unidirectionally limiting the third positioning ruler 3, that is, the third positioning ruler 3 can only move in one direction and cannot move reversely.

[0038] The first positioning ruler 1, the second positioning ruler 2 and the third positioning ruler 3 comprise a developing part 11 and a scale part 12, the developing part 11 is used for being attached to the head of a patient, the developing part 11 is provided with a position graphic mark capable of being displayed under CT / MRI scanning, and the scale part 12 is provided with a scale, and the scale part 12 is covered on the developing part 11, so that a doctor can visually watch the scale. The developing part 11 is provided with a tooth part, and the tooth part is matched with the first locking tongue 42, the second locking tongue 43 and the third locking tongue 52 to realize fixing.

[0039] As shown in the drawings, the first connecting head 4 comprises a first connecting body 41 and a second locking tongue 42, the first connecting body 41 is provided with a first fixing hole for inserting the first positioning ruler 1, and the second locking tongue 42 is used for unidirectionally limiting the first positioning ruler 1, that is, the first positioning ruler 1 can only move in one direction and cannot move reversely. Figure 7 and Figure 8As shown, the developing part 11 comprises a fixed base plate 111, developing components, partition developing pieces 113 and distinguishing developing pieces 114, the fixed base plate 111 is divided into four developing areas, and the partition developing pieces 113 are arranged between each developing area and the developing area, the partition developing pieces 113 are used for positioning the area where the image is located, and the partition developing pieces 113 are arranged along the width direction of the fixed base plate 111, and each developing area is provided with a distinguishing developing piece 114 and two groups of developing components, the distinguishing developing piece 114 is arranged side by side with one group of developing components, so that the two groups of developing components can be distinguished by the distinguishing developing piece 114 during CT / MRI scanning. Each developing component comprises four position developing pieces 112, and the four position developing pieces 112 are arranged along the length direction of the developing area, and the four position developing pieces 112 are arranged at the same staggered distance in the length direction of the developing area, and the staggered distance of the adjacent two position developing pieces 112 is the same, the length of the distinguishing developing piece 114 is greater than the length of the whole developing component, and the difference between the length of the distinguishing developing piece 114 and the length of the whole developing component is the same as the staggered distance, so that 15 staggered distances, that is, 15 standard unit cells can be formed on each developing area, and the length of each standard unit cell is usually set to 1 cm, the length of the position developing piece 112 is 4 cm, and the length of the distinguishing developing piece 114 is 8 cm, of course, the length of the standard unit cell required can also be set according to the requirements, and the length direction of the standard unit cell is the same as the length direction of the fixed base plate 111. In the embodiment, the position developing piece 112, the partition developing piece 113 and the distinguishing developing piece 114 are all made of materials that cannot be completely penetrated by X-rays and can be imaged in magnetic resonance, such as composite materials containing iodine and gadolinium. In order to ensure that each developing component has different patterns in any standard unit cell, at least one position developing piece 112 in the four position developing pieces 112 has a cross-sectional shape different from that of the other position developing pieces 112, in the embodiment, three of the position developing pieces 112 are cylindrical, and the remaining one position developing piece 112 is rectangular, and in other embodiments, the position developing pieces 112 can also be rectangular, triangular, pentagonal, etc. The fixed base plate 111 is made of flexible materials such as plastic, and the position developing piece 112, the partition developing piece 113 and the distinguishing developing piece 114 are fixed on the fixed base plate 111 by gel 115; of course, other fixing methods such as glue can also be used to fix the position developing piece 112, the partition developing piece 113 and the distinguishing developing piece 114 on the fixed base plate 111, and the tooth part is arranged on the fixed base plate 111, and the tooth part and the position developing piece 112, the partition developing piece 113 and the distinguishing developing piece 114 are located on both sides of the fixed base plate 111. The fixed base plate 111 can be set to different shapes and lengths according to different requirements, that is, the length and shape of the fixed base plate 111 of the first positioning ruler 1, the second positioning ruler 2 and the third positioning ruler 3 can be different, and can be changed according to the actual situation.

[0040] As Figure 9 and Figure 10As shown, the scale part 12 includes a scale base plate 121, position scale marks 122 and partition scale marks 123. The scale base plate 121 is divided into four scale mark areas, each of which is divided into 15 standard scale units. Each standard scale unit is provided with four scale lines, which divide each standard unit into five basic scales. The distance between each scale line is 2mm. Of course, in other embodiments, each standard scale unit can be divided into 10 standard unit cells, i.e. nine scale lines are provided, and the distance between each scale line is 1mm. Partition scale marks 123 are provided between each scale mark area. The shape of the partition scale marks 123 is the same as the cross-sectional shape of the partition developing marks in the width direction of the fixed base plate 111. Each scale mark area is provided with a plurality of uniformly arranged position scale marks 122. The number of position scale marks 122 is the same as the number of standard unit cells of the developing part 11, i.e. 15 groups of position scale marks 122 are provided. The pattern of the position scale marks 122 is the same as the pattern of the cross section of the corresponding developing assembly, or the pattern of the cross section of the combination of the corresponding developing assembly and the distinguishing developing piece 114. The scale base plate 121 is also provided with letter marks, which are arranged from A to O. This facilitates alignment with the letters on the scanned film and quick identification of the corresponding standard scale unit.

[0041] To facilitate understanding of the use method, the four developing areas of the developing part 11 are defined as a first developing area 101, a second developing area 102, a third developing area 103 and a fourth developing area 104, as shown in FIG. 2. Figure 7The middle dotted rectangular frame area, the first developing area 101 and the second developing area 102 are located on one side of the patient's head, the third developing area 103 and the fourth developing area 104 are located on the other side of the patient's head, the distinguishing developing piece 114 of the first developing area 101 and the second developing area 102 is arranged on one side of the developing assembly, the distinguishing developing piece 114 of the third developing area 103 and the fourth developing area 104 is arranged on the other side of the developing assembly, so that the specific position of the developing mark on the patient's head can be distinguished. Of course, the distinguishing developing piece 114 can also be arranged on the same side, so that the position of the developing mark needs to be combined with the sequence of the image sheet to determine the position. In the embodiment, the partition developing piece 113 between the first developing area 101 and the second developing area 102 is defined as the first partition developing piece 113, the partition developing piece 113 between the second developing area 102 and the third developing area 103 is defined as the second partition developing piece 113, and the partition developing piece 113 between the third developing area 103 and the fourth developing area 104 is defined as the third partition developing piece 113; the first partition developing piece 113 and the third partition developing piece 113 are rectangular, and the second partition developing piece 113 is spherical, and four scale mark areas are defined as the first scale mark area 105, the second scale mark area 106, the third scale mark area 107 and the fourth scale mark area 108, as shown in Figure 9 The middle dotted rectangular frame area, the three partition scale marks 123 are defined as the first partition scale mark 123, the second partition scale mark 123 and the third partition scale mark 123.

[0042] The intracranial lesion positioning method is as follows:

[0043] Firstly, the intracranial lesion positioning device is fixed on the patient's head, the first positioning ruler 1 is fixed on the head, and then the second positioning ruler 2 and the third positioning ruler 3 are adjusted to be attached.

[0044] Secondly, the image sheet of the patient is obtained, and the patient is sent to perform CT / MRI scanning, so as to obtain the image sheet of the patient's head.

[0045] Finally, the position of the lesion boundary and the position of the maximum lesion layer are obtained according to the image sheet. After the image examination is completed, in addition to the conventional head image on the image sheet, a plurality of position pattern marks can be clearly seen around the head image, and the arrangement mode composed of these position pattern marks is the cross section of the developing part 11 or the combination of the developing assembly and the distinguishing developing piece 114 (as shown in Figure 11 The corresponding scale mark 122 on the scale ruler is found according to the position pattern mark on the sheet to complete the confirmation of the lesion boundary, and the lesion boundary can be easily projected on the scalp (as shown in Figure 12The position of the lesion boundary line and the position of the maximum lesion layer can be accurately confirmed. The method for confirming the scale mark area is described by taking the slice scanned in the head-foot direction as an example. The first slice is observed, and whether the partition scale mark 123 appears is observed. The slice in which the lesion first appears is found. If the cross-sectional position mark of the first partition development part 113 and the third partition development part 113 does not appear before the slice in which the lesion first appears, it can be confirmed that the slice is located in the second development partition and the third development partition. The corresponding position scale mark 122 is found according to the position scale mark of the slice, that is, the position scale mark corresponds to the second scale mark area 106 and the third scale mark area 107. If the cross-sectional position mark of the first partition development part 113 and the third partition development part 113 appears before the slice in which the lesion first appears, it can be confirmed that the slice is located in the first development partition and the fourth development partition. Thus, the scale mark area in which the slice is located is confirmed. The method for confirming the specific position in the scale mark area is described. The CT scan thickness is obtained, and the number of slices from the first slice in the scale mark area to the slice before the slice in which the lesion first appears is obtained. The distance of the lesion boundary from the starting position of the scale mark area is obtained according to the product of the thickness and the number of slices. Then, the corresponding scale position is found according to the distance, that is, the position of the lesion boundary. Because the thickness of the thin-layer CT scan is usually 1-5 mm, at least one slice exists in each standard unit, that is, at least one slice exists in each scale mark area. When the scan thickness is 2 mm, there are 5 slices in each scale mark area. The third slice in the second standard unit in which the lesion first appears in the second scale mark area 106 is taken as an example. The scan thickness is 2 mm, and the distance of the third slice from the starting position of the standard unit is 6 mm. Therefore, the upper boundary of the intracranial lesion corresponds to the third scale line in the second standard unit. Thus, the boundary of the lesion can be projected on the surface of the scalp. Similarly, the lower boundary of the lesion, the lesion boundary in other scanning directions, and the position of the maximum lesion layer can be calculated. In another embodiment, the method for confirming the specific position in the scale mark area can also be that the thickness of a single slice is calculated according to the total number of slices in the scale mark area and the total length of the scale mark area. Then, the distance of the lesion boundary from the starting position of the scale mark area is obtained according to the product of the thickness of a single slice and the number of slices from the first slice in the scale mark area to the slice before the slice in which the lesion first appears. Then, the corresponding scale position is found according to the distance, that is, the position of the lesion boundary. This method is more suitable when the scan thickness is not a multiple of the standard unit cell spacing.

[0046] The lesion positioning operation is simple and convenient, even if the patient's head is offset from the scanning baseline, the intracranial lesion can be quickly and accurately positioned without relying on the experience of doctors, so that the lesion positioning is more accurate.

[0047] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure, direct or indirect application in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A method of locating an intracranial lesion, the method comprising: The method comprises the following steps: ​ S1, fixing an intracranial lesion positioning device capable of leaving position graphic marks under CT / MRI scanning on the head of a patient; The intracranial lesion positioning device comprises three positioning rulers capable of leaving position graphic marks under CT / MRI scanning, which are defined as a first positioning ruler, a second positioning ruler and a third positioning ruler, the first positioning ruler is distributed circumferentially around the head of the patient, the second positioning ruler is distributed front and back around the head of the patient, and the third positioning ruler is distributed left and right around the head of the patient, the first positioning ruler is connected at the head and tail, and the second positioning ruler and the third positioning ruler are both connected to the first positioning ruler; S2, obtaining an image of the patient with position graphic marks; S3, confirming the lesion boundary and the largest face of the lesion according to the position graphic marks, confirming the scale mark area where the position graphic marks are located according to the position graphic marks on the lesion boundary sheet, and then confirming the specific position in the scale mark area.

2. The intracranial lesion localization method of claim 1, wherein: The positioning ruler comprises a developing part and a scale part with scales, the developing part has position graphic marks that can be displayed under CT / MRI scanning, and the scale part is fixed on the developing part; the developing part comprises a fixed base plate, a developing assembly, a partition developing piece and a distinguishing developing piece, the fixed base plate is divided into four developing areas, each developing area is provided with a distinguishing developing piece and two groups of developing assemblies between the developing areas, and the distinguishing developing piece is arranged side by side with one group of developing assemblies; the scale part comprises a scale base plate, position scale marks and partition scale marks, the scale base plate is divided into a plurality of scale mark areas, the number of scale mark areas is equal to the number of developing areas, each scale mark area is divided into a plurality of standard scale units, and each standard scale unit is provided with position scale marks, and the standard scale units are provided with partition scale marks between the standard scale units.

3. The intracranial lesion localization method of claim 2, wherein: The four developing areas are defined as a first developing area, a second developing area, a third developing area and a fourth developing area, and the four scale mark areas are defined as a first scale mark area, a second scale mark area, a third scale mark area and a third scale mark area, and the method for confirming the scale mark area is that the first sheet is viewed in sequence, and whether the partition scale marks appear is noticed at the same time, and the sheet in which the lesion appears for the first time is found; If the cross-sectional position graphic marks of the first partition developing piece and the third partition developing piece do not appear before the sheet in which the lesion or the largest face of the lesion appears for the first time, it can be confirmed that the sheet is located in the second developing partition and the third developing partition, the corresponding position scale marks are found according to the position graphic marks of the sheet, that is, the position graphic marks correspond to the second scale mark area and the third scale mark area, if the cross-sectional position graphic marks of the first partition developing piece and the third partition developing piece appear before the sheet in which the lesion or the largest face of the lesion appears for the first time, it can be confirmed that the sheet is located in the first developing partition and the fourth developing partition, and thus the scale mark area where the corresponding sheet is located is confirmed.

4. The intracranial lesion localization method of claim 3, wherein: Each scale mark area is provided with a plurality of standard scale units, and each standard scale unit is provided with a plurality of scale lines; the specific position in the scale mark area is confirmed by obtaining the CT / MRI scanning thickness and the number of films from the first film in the scale mark area to the film before the first film with a lesion, obtaining the distance of the lesion boundary or the largest surface of the lesion from the starting position of the scale mark area according to the product of the thickness and the number of films, and then finding out the corresponding scale line according to the distance.

5. The intracranial lesion localization method of claim 3, wherein: Each scale mark area is provided with a plurality of standard scale units, and each standard scale unit is provided with a plurality of scale lines; the specific position in the scale mark area is confirmed by obtaining the CT / MRI scanning thickness and the number of films from the first film in the scale mark area to the film before the first film with a lesion, obtaining the distance of the lesion boundary or the largest surface of the lesion from the starting position of the scale mark area according to the product of the thickness and the number of films, and then finding out the corresponding scale line according to the distance.

6. The intracranial lesion localization method of claim 2, wherein: Each developing assembly comprises four position developing pieces, the four position developing pieces are arranged along the length direction of the developing area, the four position developing pieces are simultaneously arranged with a staggered distance in the length direction of the developing area, the staggered distance of the adjacent two position developing pieces is the same, and at least one position developing piece in the four position developing pieces is different from the other position developing pieces in cross-sectional shape.

7. The intracranial lesion localization method of claim 6, wherein: Three position developing pieces are cylindrical, and the remaining one position developing piece is rectangular.

8. The intracranial lesion localization method of claim 2, wherein: The length of the distinguishing developing piece is greater than the length of the whole developing assembly, and the difference between the length of the distinguishing developing piece and the length of the whole developing assembly is the same as the staggered distance.

9. The intracranial lesion localization method of claim 2, wherein: The scale substrate is further provided with letter marks.

10. The intracranial lesion localization method of claim 5, wherein: Each standard scale unit is provided with a plurality of uniformly distributed scale lines. Each scale mark area is provided with a plurality of standard scale units, and each standard scale unit is provided with a plurality of scale lines; the specific position in the scale mark area is confirmed by obtaining the CT / MRI scanning thickness and the number of films from the first film in the scale mark area to the film before the first film with a lesion, obtaining the distance of the lesion boundary or the largest surface of the lesion from the starting position of the scale mark area according to the product of the thickness and the number of films, and then finding out the corresponding scale line according to the distance.

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