Method for morphological assessment of residual false lumen aneurysmal dilatation after aortic dissection surgery
Patent Information
- Application Number
- CN202410437869.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2026-10-27
AI Technical Summary
但主动脉夹层TEVAR术后仍观察到残余假腔的情况普遍存在，其对主动脉夹层术后的远期死亡率有不利影响
[0039]本发明的有益效果为：首先，本专利中所展示的形态学分析方法目前并未被相关研究所提及的，用以描述主动脉夹层TEVAR术后残余假腔的形态特征。其次，这些参数的获取可以完全基于医学影像信息，不需要临床增加测量成本，主要是对临床采集图像信息的再加工，不会增加患者负担。另外，这些形态学参数的测定过程属于无创的，不会对病人身体造成任何影响。最后，这些形态学参数从另一角度描述了残余假腔处形态特征，更加关注病人远端残余假腔形态学的随访改变，以监控残余假腔的局部形态变化情况与瘤样化扩张程度，为医生临床提供有价值的参考。
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Figure CN122991564A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of assessment of residual pseudolumen-like dilatation after aortic dissection, specifically involving a method for assessing residual pseudolumen-like dilatation in aortic dissection based on morphological parameters. Background Technology
[0002] Aortic dissection (AD) is a serious cardiovascular emergency caused by blood entering the aortic wall through a proximal tear in the aortic intima, resulting in separation of the aortic wall and the formation of a true and false lumen, as well as secondary distal intimal tears. It has a high mortality rate. Currently, endovascular aortic repair (TEVAR) has become the preferred treatment for Stanford type A and B aortic dissections due to its lower complication and mortality rates compared to conservative treatment. However, residual false lumen is commonly observed after TEVAR, which negatively impacts long-term mortality.
[0003] Although residual false lumen at the distal end of aortic dissection is common and has long-term adverse effects on patients, there is currently no quantitative method to describe the development of this lesion after TEVAR, and no clinical intervention guidelines have been established. This makes it difficult for clinicians to grasp the long-term development and deterioration of this lesion, and there is no basis for timely clinical intervention. Summary of the Invention
[0004] To overcome the shortcomings of existing technologies, this invention provides a method for morphologically assessing the aneurysmal expansion of residual false lumen after aortic dissection. Considering the existence of this aneurysmal expansion, we study the relevant morphological characteristics of the distal residual false lumen after TEVAR in aortic dissection patients, using different morphological parameters to quantitatively describe the morphological changes of the residual false lumen segment. This effectively monitors the progression of aneurysmal expansion in this lesion and explores a more effective method for monitoring the distal aneurysmal expansion of residual false lumen in aortic dissection. The technical solution adopted in this invention is as follows:
[0005] A method for morphologically assessing residual pseudolumen-like dilatation after aortic dissection includes the following steps:
[0006] Step 1: Create a 3D model of aortic dissection based on clinical images;
[0007] Step 2: Monitor the state and changes of aortic dissection based on the degree of change in the surface area or volume of the false lumen in the 3D model;
[0008] To ensure that the morphological information of the patient's accurate three-dimensional model was not lost, the surface area of the residual false cavity was measured at different follow-up times, and the results were analyzed based on the surface area of the false cavity (SA). FL The changes in the distal residual pseudocavitary tumor were assessed to evaluate the progression of the tumor-like expansion after TEVAR surgery.
[0009] Step 3: Based on the results of Step 2, assess the risk of residual pseudocavitary tumor-like expansion.
[0010] A method for morphologically assessing residual pseudolumen-like dilatation after aortic dissection includes the following steps:
[0011] Step 1: Acquire clinical images;
[0012] Step 2: Monitor the status and changes of aortic dissection based on the degree of change in the surface area or volume of the false lumen in clinical imaging;
[0013] Step 3: Based on the results of Step 2, assess the risk of residual pseudocavitary tumor-like expansion.
[0014] Furthermore, step 2 includes the following steps: step 21: measuring the surface area of the residual false cavity; step 22: calculating the change in the surface area of the residual false cavity.
[0015] Furthermore, step 22 specifically includes:
[0016]
[0017] In the above formula, m and n represent different inspections, SAR FL,m,n This represents the surface area ratio of the false cavity during the two examinations, which is a dimensionless parameter greater than or equal to 0. When SAR FL,m,n When it is greater than 1, it represents SA. FL It is increasing in size, and the pseudoaneurysmal expansion is progressing and worsening. When SAR FL,m,n When it is less than 1, it represents SA. FL It is decreasing, and the pseudoaneurysmal expansion is improving. When SAR FL,m,n The larger the absolute value, the stronger the SA. FL The more pronounced the enlargement, the greater the degree of pseudocavitary tumor-like expansion, and the more severe the condition. When SAR FL,m,n The smaller the absolute value, the larger the false cavity region (SA). FL The more significant the reduction, the greater the improvement in pseudoaneurysmal expansion; when SAR FL,m,n When the value equals zero, it indicates that the false cavity has been eliminated.
[0018] Furthermore, step 22 specifically includes:
[0019] SA FL,m,n =SA FL,n -SA FL,m
[0020] SA in the above formula FL,m,n This represents the difference in residual false cavity surface area between two examinations, with the dimension cm. 2 . When SA FL,m,n When it is greater than 0, it represents SA. FL It is growing, and the pseudoaneurysmal expansion is progressing and worsening. When SA FL,m,n When it is less than 0, it represents SA. FL It is decreasing, and the pseudoaneurysmal expansion is improving. When SA FL,m,n The larger the absolute value, the stronger the SA. FL The more pronounced the change, the more unstable the false cavity morphology. FL,m,n The smaller the absolute value, the larger the false cavity region (SA). FL The less obvious the changes, the more stable the shape of the false cavity.
[0021] Figure 3 (a) represents SA during the five-year follow-up period. FL The changes are shown on the horizontal axis. The horizontal axis numbers represent the results at 6 months, 1 year, 2 years, 3 years, 4 years, and 5 years postoperatively. (b) represents the change in the surface area ratio of the false cavity region based on the first postoperative examination. (c) represents the change in surface area during the five-year follow-up period based on the first postoperative examination.
[0022] Furthermore, step 22 specifically includes:
[0023]
[0024] Among them, SAPY FL,m,n (Surface Area Variation Per Year) represents the average annual change in the surface area of the false lumen between two follow-up periods, measured in cm² / year. A value greater than zero indicates a gradual increase in the surface area of the false lumen, suggesting progressive worsening of the tumor-like expansion. A value less than zero indicates a gradual decrease in the surface area of the false lumen, indicating that the tumor-like expansion is under control. A larger absolute value indicates more drastic changes in the surface area of the false lumen and greater instability; a smaller absolute value indicates less significant changes and greater stability.
[0025] Furthermore, step 3 specifically involves: when the surface area of the false cavity increases, it indicates that the pseudo-cavity tumor-like expansion is progressing and deteriorating; when the surface area of the false cavity decreases, it indicates that the pseudo-cavity tumor-like expansion is controlled or improved.
[0026] Furthermore, step 2 includes the following steps:
[0027] Step 21: Measure the volume of the residual false cavity;
[0028] Based on the morphological analysis, we can see that the residual false cavity volume in this patient was gradually increasing after surgery. This process can be used to quantitatively describe the progression of the pseudocavity tumor-like expansion, providing morphological evidence for physicians to clinically assess this type of lesion. Furthermore, we can use a specific V... FL Using the measurement results as a benchmark, determine the subsequent V FL The changes.
[0029] Step 22: Calculate the change in the volume of the residual false cavity;
[0030]
[0031] In the above formula, m and n represent different checks, VR m,n This represents the ratio of the false cavity volume during the two examinations, and it is a dimensionless parameter greater than or equal to 0. When VR m,n A value greater than 1 indicates that the volume of the false lumen is increasing, and the pseudo-lumen-like expansion is progressing and worsening. When VR m,n When the value is less than 1, it indicates that the volume of the false lumen is decreasing, and the pseudo-lumen-like expansion of the false lumen is improving. When VR m,n The larger the absolute value, the greater the value of V. FL The more pronounced the enlargement, the greater the degree of pseudoaneurysmal expansion, and the more severe the condition. When VR... m,n The smaller the absolute value, the larger the false cavity region V. FL The more significant the reduction, the greater the improvement in pseudoaneurysmal expansion. m,n When the value equals zero, it indicates that the false cavity has been eliminated.
[0032] Step 22: Calculate the change in the volume of the false cavity;
[0033] V FL,m,n =V FL,n -V FL,m
[0034] V in the above formula m,n This represents the difference in false cavity volume between two examinations, with the dimension cm. 2 When V FL,m,n When it is greater than 0, it represents V FL It is increasing in size, and the pseudo-cavity tumor-like expansion is progressing and worsening. When V FL,m,n When it is less than 0, it represents V FL It is decreasing, and the pseudoaneurysmal expansion is improving. When V FL,m,n The larger the absolute value, the greater the value of V. FL The more pronounced the change, the less stable the false cavity morphology becomes, when VFL,m,n The smaller the absolute value, the larger the false cavity region V. FL The less obvious the changes, the more stable the shape of the false cavity.
[0035] Step 22: Calculate the change in the volume of the false cavity;
[0036]
[0037] Among them, VPY m,n (Volume variation Per Year) represents the average annual change in the false lumen volume between two follow-up periods, with dimensions in mL / year. When VPY m,n A value greater than zero indicates that the volume of the false cavity is gradually increasing, and the tumor-like expansion is progressing and worsening. When VPY m,n When VPY is less than zero, it indicates that the volume of the false cavity is gradually decreasing, and the pseudocavitary aneurysmal expansion is improving. m,n The larger the absolute value, the more drastic the change in the false cavity volume, and the more unstable the false cavity. When VPY m,n The smaller the absolute value, the less obvious the change in the volume of the false cavity, and the more stable the false cavity.
[0038] Furthermore, when the volume of the residual false lumen increases, it indicates that the tumor-like expansion is progressing and worsening; when the volume of the residual false lumen decreases, it indicates that the tumor-like expansion of the false lumen is controlled or improved.
[0039] The beneficial effects of this invention are as follows: First, the morphological analysis method demonstrated in this patent has not been mentioned in previous research for describing the morphological characteristics of the residual false lumen after TEVAR for aortic dissection. Second, the acquisition of these parameters can be based entirely on medical imaging information, without increasing clinical measurement costs; it mainly involves the reprocessing of clinically acquired image information and will not increase the burden on patients. Furthermore, the measurement process for these morphological parameters is non-invasive and will not cause any impact on the patient's body. Finally, these morphological parameters describe the morphological characteristics of the residual false lumen from another perspective, focusing more on the follow-up changes in the morphology of the distal residual false lumen to monitor local morphological changes and the degree of aneurysmal expansion, providing valuable reference for clinicians. Attached Figure Description
[0040] Figure 1 This is a three-dimensional model of the aorta in this invention.
[0041] Figure 2 A two-dimensional planar schematic diagram of the residual false cavity area in the patient.
[0042] Figure 3 This describes the changes in the surface area of the false cavity during the five-year follow-up period of the patient.
[0043] Figure 4 This describes the changes in the volume of the false cavity during the patient's five-year follow-up period. Detailed Implementation
[0044] The present invention will be further described below with reference to the accompanying drawings and reference numerals.
[0045] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0046] The terms “first,” “second,” “third,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0048] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0049] Example 1:
[0050] like Figure 1 and 2 As shown, a method for morphologically assessing residual pseudolumbar aneurysm-like dilatation after aortic dissection includes the following steps:
[0051] Step 1: Create a 3D model of aortic dissection based on clinical images;
[0052] Based on the patient's clinical medical images, such as CTA and MRI images, a precise three-dimensional model reconstruction of the aneurysm region is performed, such as... Figure 1 As shown, we take the five-year follow-up results of a patient who underwent TEVAR surgery to treat aortic dissection as an example. CT angiography (CTA) images of this patient were collected 10 days before surgery, 1 day before surgery, and 6 months, 1 year, 2 years, 3 years, 4 years, and 5 years after surgery.
[0053] Step 2: Monitor the state and changes of aortic dissection based on the degree of change in the surface area or volume of the false lumen in the 3D model;
[0054] This is a two-dimensional planar schematic diagram of the residual false lumen region in this patient. TL and FL represent the true lumen and the false lumen, respectively.
[0055] To ensure that the morphological information of the patient's accurate three-dimensional model was not lost, the surface area of the residual false cavity was measured at different follow-up times, and the results were analyzed based on the surface area of the false cavity (SA). FL The changes in the tumor were assessed to evaluate the progression of residual pseudocavitary tumor-like expansion after TEVAR surgery.
[0056] Step 3: Based on the results of Step 2, assess the risk of residual pseudocavitary tumor-like expansion.
[0057] Example 2: A method for morphological assessment of residual pseudolumen-like dilatation after aortic dissection, comprising the following steps:
[0058] Step 1: Acquire clinical images;
[0059] Step 2: Monitor the status and changes of aortic dissection based on the degree of change in the surface area or volume of the false lumen in clinical imaging;
[0060] Step 3: Based on the results of Step 2, assess the risk of residual pseudocavitary tumor-like expansion.
[0061] Example 3:
[0062] Based on Examples 1 and 2, step 2 includes the following steps:
[0063] Step 21: Measure the surface area of the residual false cavity;
[0064] Step 22: Calculate the change in the surface area of the residual pseudo-cavity.
[0065] Example 4:
[0066] Based on Example 3, such as Figure 3 As shown, based on the morphological analysis results, we can see that the surface area of the residual false cavity in this patient is gradually increasing, from 82.63 cm². 2 It gradually increased to 98.84cm 2 This process of change can be used to quantitatively describe the progression of pseudocavitary tumor-like expansion in patients, providing morphological evidence for physicians to clinically assess this type of lesion. Furthermore, we can use a specific SA (Small Amblycemic Injection) event as a starting point... FL Based on the measurement results, determine subsequent SA. FL The changes. Figure 3(b) An assessment was conducted based on the first follow-up examination six months post-surgery, indicating that the patient's residual pseudo-cavity tumor-like expansion had progressively progressed compared to the first post-surgery examination. Step 22 specifically involved:
[0067]
[0068] In the above formula, m and n represent different inspections, SAR FL,m,n This represents the surface area ratio of the false cavity during the two examinations, which is a dimensionless parameter greater than or equal to 0. When SAR FL,m,n When it is greater than 1, it represents SA. FL It is increasing in size, and the pseudoaneurysmal expansion is progressing and worsening. When SAR FL,m,n When it is less than 1, it represents SA. FL It is decreasing, and the pseudoaneurysmal expansion is improving. When SAR FL,m,n The larger the absolute value, the stronger the SA. FL The more pronounced the enlargement, the greater the degree of pseudocavitary tumor-like expansion, and the more severe the condition. When SAR FL,m,n The smaller the absolute value, the larger the false cavity region (SA). FL The more significant the reduction, the greater the improvement in pseudoaneurysmal expansion; when SAR FL,m,n When the value equals zero, it indicates that the false cavity has been eliminated.
[0069] Example 5:
[0070] Based on Example 3, step 22 specifically includes:
[0071] SA FL,m,n =SA FL,n -SA FL,m
[0072] SA in the above formula FL,m,n This represents the difference in residual false cavity surface area between two examinations, with the dimension cm. 2 . When SA FL,m,n When it is greater than 0, it represents SA. FL It is growing, and the pseudoaneurysmal expansion is progressing and worsening. When SA FL,m,n When it is less than 0, it represents SA. FL It is decreasing, and the pseudoaneurysmal expansion is improving. When SA FL,m,n The larger the absolute value, the stronger the SA. FL The more pronounced the change, the more unstable the false cavity morphology. FL,m,n The smaller the absolute value, the larger the false cavity region (SA). FL The less obvious the changes, the more stable the shape of the false cavity.
[0073] Figure 3(a) represents SA during the five-year follow-up period. FL The changes are shown on the horizontal axis. The horizontal axis numbers represent the results at 6 months, 1 year, 2 years, 3 years, 4 years, and 5 years postoperatively. (b) represents the change in the surface area ratio of the false cavity region based on the first postoperative examination. (c) represents the change in surface area during the five-year follow-up period based on the first postoperative examination.
[0074] Example 6:
[0075] Based on Example 3, such as Figure 3 As shown, step 22 specifically includes:
[0076]
[0077] Among them, SAPY FL,m,n (Surface Area variation Per Year) represents the average annual change in the surface area of the false cavity between two follow-up periods, with dimensions of cm² / year. When SAPY FL,m,n A value greater than zero indicates that the surface area of the false cavity is gradually increasing, and the tumor-like expansion is progressing and worsening. When SAPY... FL,m,n When the value is less than zero, it indicates that the surface area of the pseudo-cavity is gradually decreasing, and the pseudo-cavity aneurysmal expansion is under control. When SAPY FL,m,n The larger the absolute value, the more drastic the change in the surface area of the false cavity, and the more unstable the false cavity. When SAPY FL,m,n The smaller the absolute value, the less obvious the change in the surface area of the false cavity, and the more stable the false cavity.
[0078] Taking the five-year follow-up results of this patient as an example, the formula for calculating the change in surface area is:
[0079]
[0080] like Figure 3 As shown, during the five-year follow-up period for this patient, except for one year post-surgery, SA... FL With SAR FL It has been increasing, SAPY6 months,5years It is also greater than zero, which may have adverse consequences for patients in the long term. Surgeons can also use this parameter to judge the development of the distal dissection pseudocavitary tumor-like expansion of the patient, and provide a reference for doctors' clinical diagnosis.
[0081] Example 7:
[0082] Based on Examples 4-6, step 3 specifically means that when the surface area of the false cavity increases, it indicates that the pseudo-cavity tumor-like expansion is progressing and deteriorating; when the surface area of the false cavity decreases, it indicates that the pseudo-cavity tumor-like expansion is controlled or improved.
[0083] Example 8:
[0084] Based on Examples 1 and 2, step 2 includes the following steps:
[0085] Step 21: Measure the volume of the residual false cavity;
[0086] like Figure 4 As shown, based on the morphological analysis results, we can see that the volume of the residual false cavity after surgery in this patient was gradually increasing, from 45.32 mL to 63.40 mL. Figure 4 This process of change can be used to quantitatively describe the progression of pseudocavitary tumor-like expansion in patients, providing morphological evidence for physicians to clinically assess this type of lesion. Furthermore, we can use a specific V... FL Using the measurement results as a benchmark, determine the subsequent V FL The changes. Figure 4 (b) An assessment was conducted based on the first follow-up examination six months post-surgery, indicating a gradual progression of tumor-like expansion of the residual false cavity in subsequent follow-up examinations compared to the first post-surgery examination:
[0087] Example 9:
[0088] Based on Example 8, step 2 includes the following steps:
[0089] Step 22: Calculate the change in the volume of the residual false cavity;
[0090]
[0091] In the above formula, m and n represent different checks, VR m,n This represents the ratio of the false cavity volume during the two examinations, and it is a dimensionless parameter greater than or equal to 0. When VR m,n A value greater than 1 indicates that the volume of the false lumen is increasing, and the pseudo-lumen-like expansion is progressing and worsening. When VR m,n When the value is less than 1, it indicates that the volume of the false lumen is decreasing, and the pseudo-lumen-like expansion of the false lumen is improving. When VR m,n The larger the absolute value, the greater the value of V. FL The more pronounced the enlargement, the greater the degree of pseudoaneurysmal expansion, and the more severe the condition. When VR... m,n The smaller the absolute value, the larger the false cavity region V. FL The more significant the reduction, the greater the improvement in pseudoaneurysmal expansion. m,n When the value equals zero, it indicates that the false cavity has been eliminated.
[0092] Example 10:
[0093] Based on Example 8, step 2 includes the following steps:
[0094] Step 22: Calculate the change in the volume of the false cavity;
[0095] V FL,m,n =V FL,n -V FL,m
[0096] V in the above formula FL,m,n This represents the difference in false cavity volume between two examinations, with the dimension cm. 2 When V FL,m,n When it is greater than 0, it represents V FL It is increasing in size, and the pseudo-cavity tumor-like expansion is progressing and worsening. When V FL,m,n When it is less than 0, it represents V FL It is decreasing, and the pseudoaneurysmal expansion is improving. When V FL,m,n The larger the absolute value, the greater the value of V. FL The more pronounced the change, the less stable the false cavity morphology becomes, when V FL,m,n The smaller the absolute value, the larger the false cavity region V. FL The less obvious the changes, the more stable the shape of the false cavity.
[0097] Example 11:
[0098] Based on Example 8, step 2 includes the following steps:
[0099] Step 22: Calculate the change in the volume of the false cavity;
[0100]
[0101] Among them, VPY m,n (Volume variation Per Year) represents the average annual change in the false lumen volume between two follow-up periods, with dimensions in mL / year. When VPY m,n A value greater than zero indicates that the volume of the false cavity is gradually increasing, and the pseudocavity tumor-like expansion is progressing and worsening. When VPY m,n When VPY is less than zero, it indicates that the volume of the false lumen is gradually decreasing, and the pseudo-lumen-like expansion of the false lumen is no longer occurring. m,n The larger the absolute value, the more drastic the change in the false cavity volume, and the more unstable the false cavity. When VPY m,n The smaller the absolute value, the less obvious the change in the volume of the false cavity, and the more stable the false cavity.
[0102] Taking the five-year follow-up results of this patient as an example, the formula for calculating the volume change is:
[0103]
[0104] like Figure 4As shown, during the five-year follow-up period for this patient, except for one year post-surgery, V FL With VR constantly growing, VPY6 months,5years It is also greater than zero, which may have adverse consequences for patients in the long term. Surgeons can also use this parameter to judge the development of the distal dissection pseudocavitary tumor-like expansion of the patient, and provide a reference for doctors' clinical diagnosis.
[0105] Figure 4 In the figures, (a) represents the change in the volume of the false cavity during the five-year follow-up period. The horizontal axis numbers represent the results at 6 months, 1 year, 2 years, 3 years, 4 years, and 5 years postoperatively. (b) represents the change in the volume ratio of the false cavity region based on the first postoperative examination. (c) represents the change in volume during the five-year follow-up period based on the first postoperative examination.
[0106] Example 12:
[0107] Based on Examples 9-11, such as Figure 4 As shown, when the volume of the residual false lumen increases, it indicates that the tumor-like expansion is progressing and worsening; when the volume of the residual false lumen decreases, it indicates that the tumor-like expansion of the false lumen is controlled or improved.
[0108] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.
Claims
1. A method for morphologically assessing the residual pseudo-lumen-like dilatation after aortic dissection, characterized in that: Includes the following steps: Step 1: Create a 3D model of aortic dissection based on clinical images; Step 2: Monitor the state and changes of aortic dissection based on the degree of change in the surface area or volume of the false lumen in the 3D model; Step 3: Based on the results of Step 2, assess the risk of residual pseudocavitary tumor-like expansion.
2. A method for morphologically assessing the residual pseudo-lumen-like dilatation after aortic dissection, characterized in that: Includes the following steps: Step 1: Acquire clinical images; Step 2: Monitor the status and changes of aortic dissection based on the degree of change in the surface area or volume of the false lumen in clinical imaging; Step 3: Based on the results of Step 2, assess the risk of residual pseudocavitary tumor-like expansion.
3. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 1 or 2, characterized in that: Step 2 includes the following steps: Step 21: Measure the surface area of the residual false cavity; Step 22: Calculate the change in the surface area of the residual pseudo-cavity.
4. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 3, characterized in that: Step 22 specifically involves: In the above formula, m and n represent different inspections, SAR FL,m,n This represents the ratio of the surface area of the false cavity during the two examinations, and it is a dimensionless parameter greater than or equal to 0.
5. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 3, characterized in that: Step 22 specifically involves: IN FL,m,n =IN FL,n -IN FL,m SA in the above formula FL,m,n This represents the difference in residual false cavity surface area between two examinations, with the dimension cm. 2 .
6. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 3, characterized in that: Step 22 specifically involves: Among them, SAPY FL,m,n T represents the average annual change in the surface area of the false cavity during the two follow-up periods, with the dimension being cm² / year.
7. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to any one of claims 4-6, characterized in that: Step 3 specifically involves the following: when the surface area of the false cavity increases, it indicates that the pseudo-cavity tumor-like expansion is progressing and deteriorating; when the surface area of the false cavity decreases, it indicates that the pseudo-cavity tumor-like expansion is controlled or improved.
8. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 1 or 2, characterized in that: Step 2 includes the following steps: Step 21: Measure the volume of the residual false cavity; Step 22: Calculate the change in the volume of the residual false cavity.
9. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 8, characterized in that: Step 22 specifically involves: In the above formula, m and n represent different checks, VR m,n This represents the ratio of the false cavity volume during the two examinations, and it is a dimensionless parameter greater than or equal to 0.
10. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 8, characterized in that: Step 22 specifically involves: V FL,m,n =V FL,n -V FL,m V in the above formula FL,m,n This represents the difference in false cavity volume between two examinations, with the dimension cm. 2 .
11. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to claim 8, characterized in that: Calculate the rate of change of the pseudo-cavity volume; Step 22 specifically involves: Among them, VPY m,n This represents the average annual change in the false cavity volume during the two follow-up periods, measured in mL / year.
12. The method for morphological assessment of residual pseudoaneurysmal dilatation after aortic dissection according to any one of claims 9-11, characterized in that: When the volume of the residual false lumen increases, it indicates that the tumor-like expansion is progressing and worsening; when the volume of the residual false lumen decreases, it indicates that the tumor-like expansion of the false lumen is controlled or improved.