Guidewire navigation method and system for hilar stenosis in endoscopic biliary stent implantation

Abstract

The present invention discloses a guide wire navigation method and system for endoscopic biliary stent implantation for hilar stenosis, comprising the following steps: S1: receiving input magnetic resonance cholangiopancreatography images of patients with hilar biliary stenosis ; S2: The image segmentation method based on deep learning is used to segment the MRI cholangiopancreatography images of patients with hilar bile duct stenosis, and predict the navigation line from the end of the bile duct to the site of hilar stenosis; S3: Receive endoscopic retrograde pancreaticobiliary Real-time fluoroscopy images in angiography; S4: According to the key points of the bile duct on the magnetic resonance cholangiopancreatography image and the key points of the guide wire on the fluoroscopy image in endoscopic retrograde cholangiopancreatography, the two images are registered; S5: displaying the composite image after registration, when the predicted guide wire in the composite image does not match the inserted guide wire, change the position of the guide wire until the two match. The invention can guide the doctor to perform bile duct intubation, help the doctor judge whether the bile duct intubation is correct, reduce the amount of contrast medium used in the operation and reduce postoperative complications.

Description

technical field [0001] The invention belongs to the technical field of medical image processing, and in particular relates to a guide wire navigation system and method for endoscopic bile duct stent placement for hilar stenosis based on deep learning image segmentation technology. Background technique [0002] Hilar biliary stenosis is one of the common biliary stenosis diseases. Because the bile drainage of the hepatic lobule corresponding to the stenotic bile duct is not smooth, patients often have corresponding clinical symptoms such as jaundice, skin itching, abdominal pain, and cholangitis. The treatment of hilar bile duct stenosis is generally divided into surgical treatment or non-surgical treatment. In recent years, endoscopic biliary stenting has been widely used in non-surgical treatment due to its non-invasiveness. Endoscopic biliary stenting is the first-line treatment for benign hilar biliary stenosis; for malignant hilar biliary stenosis, endoscopic biliary ste...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem of inaccurate manual judgment of guide wire insertion into the narrow bile duct during endoscopic biliary stent placement, and proposes an image segmentation technology based on deep learning for hilar stenosis in endoscopic biliary stent placement. Guide wire navigation method and system during operation

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