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Bile duct stent specification selection method and device

A technology for bile duct stents and bile ducts, which is applied to human tubular structures, bile ducts, image enhancement, etc., to achieve the effects of shortening the duration of radiation exposure, improving accuracy, and reducing radiation damage

Active Publication Date: 2022-06-10
青岛美迪康数字工程有限公司 +1
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  • Abstract
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Problems solved by technology

These methods are not only not accurate enough, and the radiation exposure time is long, which makes the operator and the patient's body suffer unnecessary harm.

Method used

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  • Bile duct stent specification selection method and device
  • Bile duct stent specification selection method and device
  • Bile duct stent specification selection method and device

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Embodiment Construction

[0030] S22. Determine whether the first guide wire region exists between the two second guide wire regions;

[0031] It can be understood that if there is a first guide wire region between two second guide wire regions, that is to say, there is a guide wire segment not covered by bile duct between two guide wire segments covered by bile duct, it means The wire segment between the two covered wire segments is not covered by the bile duct, i.e. the segment of the bile duct is very thin, e.g., above Figure 2c If the third guide wire EF is used, it is considered that the bile duct is narrowed in the middle.

[0032] If there is no first guide wire segment between the two second guide wire regions, then there is no mid-section stenosis. At this time, it is further judged whether there is terminal stenosis. The judgment method is: the first guide wire region corresponding to the end of the bile duct Whether the length of the guide wire is greater than 1.5cm, if it is greater than ...

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Abstract

The invention relates to the technical field of endoscopic image processing, in particular to a bile duct stent specification selection method and device.The method comprises the steps that a duodenoscope area, a guide wire area and a bile duct area in an angiography image in endoscopic retrograde bile duct angiography are recognized, and the duodenoscope body pixel diameter in the duodenoscope area is determined; according to the guide wire area and the bile duct area, whether bile duct stenosis exists or not is determined; if the bile duct stenosis exists, determining a corresponding target guide wire section according to the type of the bile duct stenosis; determining the pixel length of the target guide wire section, and calculating the physical length of the target guide wire section according to the pixel diameter of the body of the duodenoscope, the physical diameter of the body of the duodenoscope and the pixel length of the target guide wire section; according to the physical length of the target guide wire section, the specification of the bile duct stent to be implanted is determined. According to the invention, the accuracy of specification selection of the bile duct stent is improved, and the time of exposure of medical staff and patients to electromagnetic radiation in the ERCP operation process is shortened.

Description

technical field [0001] The invention relates to the technical field of endoscopic image processing, in particular to a method and device for selecting specifications of bile duct stents. Background technique [0002] Endoscopic retrograde cholangiopancreatography (English: Endoscopic Retrograde Cholangiopancreatography, abbreviated as ERCP) originated in the late 1960s. The specific operation is that the doctor inserts the duodenoscope into the descending part of the duodenum and passes through the duodenal papilla. X-rays are taken after injection of contrast agent to visualize the pancreaticobiliary ducts. This technique can successfully display the pancreaticobiliary structure to diagnose diseases such as bile duct stones and bile duct strictures. With the shift from diagnostic to therapeutic use, quality control of ERCP is key to improving its success rate and reducing complications. [0003] Choosing the appropriate size of biliary stent is not only conducive to the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/60G06T7/62G06V10/762G06K9/62A61B1/273A61F2/04
CPCG06T7/0012G06T7/11G06T7/60G06T7/62A61F2/04A61B1/273A61F2002/041G06T2207/10068G06T2207/30028G06F18/2321
Inventor 季锐冯健邵学军邵宏亭张文琳
Owner 青岛美迪康数字工程有限公司
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