Rib auto-demarcating method and device

An automatic calibration and rib technology, applied in the field of data processing, can solve the problems of inaccurate automatic positioning, inaccurate rib extraction, blurred rib outline and initial seed point bone outline, etc., and achieve the effect of accurate rib positioning

Active Publication Date: 2009-06-10
NEUSOFT MEDICAL SYST CO LTD
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Problems solved by technology

[0005] However, for some patients, see figure 1 , on the selected coronal plane, it is sometimes difficult to distinguish the outline of the clavicle from the outline of the first rib (the small white ellipse in the figure is the outline of the bone), which may easily lead to inaccurate automatic positioning. For example, some patient data are in accordance with this method The selected coronal clavicle and rib contours are very close in size, so the m

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  • Rib auto-demarcating method and device
  • Rib auto-demarcating method and device
  • Rib auto-demarcating method and device

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Embodiment Construction

[0052] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] see image 3 , the rib automatic calibration method provided by the embodiment of the present invention includes the following steps:

[0054] S301: Extract chest bones from the scan data, where the chest bones include ribs;

[0055] It should be noted that the work done by the present invention is mainly to locate the ribs according to the scanning data obtained after using CT scanning equipment to scan the chest. Since the scanning data also includes other tissues of the human body in addition to bone tissue, it is first necessary to The steps performed were to extract the thoracic skeleton from the scan data. Wherein, the method for extracting chest bones may include the following steps:

[0056] (1) Threshold segment...

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Abstract

The invention discloses an automatic rib marking method, which comprises: extracting thoracic bones from scan data, wherein the thoracic bones comprise ribs; according to the feature representation of a first rib on a sagittal plane, determining the position of the first rib and a basic sagittal plane; according to the position of the first rib, coding the first rib and other rib regions on the basic sagittal plane to mark the sequence number of the ribs corresponding to the rib regions. The invention also discloses an automatic rib marking device. The method can accurately mark the rib regions according to the feature presentation of the ribs on the sagittal plane; in addition, the method can obtain ideal rib outlines easily, facilitate the initial seed points of the ribs and consequently complete the positioning of the whole ribs accurately.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a method and device for automatic rib calibration. Background technique [0002] Rib fractures are very common in clinical practice. In view of the needs of current clinical treatment and forensic science, timely and accurate diagnosis of rib fractures is very important. Chest CT scanning for rib fractures can improve the accuracy, but it is difficult to locate the ribs. For example, the use of spiral CT scans to display traumatic rib fractures or rib lesions provides richer and more accurate image information than plain X-ray films; however, these image information cannot directly indicate the location of the lesion, and imaging doctors need to analyze these image information In order to point out the exact location of the lesion. However, because the spiral CT scan provides a large number of cross-sectional rib images, and the ribs are intermittently inclined, it often takes a ...

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Application Information

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IPC IPC(8): G06T7/00A61B6/03
Inventor 李宏李骏康雁
Owner NEUSOFT MEDICAL SYST CO LTD
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