Guide wire navigation method for endoscopic biliary stent implantation for portal stenosis and guide wire navigation system thereof

Abstract

The invention discloses a guide wire navigation method for endoscopic biliary stent implantation for portal stenosis and a guide wire navigation system thereof. The method comprises the following steps: S1, receiving an input magnetic resonance pancreatic duct imaging image of a patient with portal stenosis; S2, performing image segmentation on the magnetic resonance pancreatic duct imaging imageof the patient with the hilar biliary stenosis based on an image segmentation method of deep learning, and predicting a navigation line from the tail end of the biliary duct to a hilar stenosis part;S3, receiving a real-time perspective image in an endoscopic retrograde cholangiopancreatography; S4, registering the two images according to the key points of the biliary duct on a magnetic resonance cholangiopancreatography image and the key points of the guide wire on the perspective image in the endoscopic retrograde cholangiopancreatography; and S5, displaying a registered composite image, and when the predicted navigation line in the composite image is not matched with the inserted guide wire, changing the position of the guide wire until the predicted navigation line is matched with the inserted guide wire. The method and the system can guide a doctor to perform biliary duct intubation, help the doctor to judge whether biliary duct intubation is correct or not, and reduce the use amount of a contrast media during an operation so as to 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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