Method and system for surgical planning based on three-dimensional model

Abstract

The invention relates to the technical field of medical images, and provides a method and system for surgical planning based on a three-dimensional model. The method for surgical planning based on the three-dimensional model comprises the steps of (1) image generation, wherein the three-dimensional model which contains a surgical site of a patient is generated; (2) construction of a cutting curved surface, wherein the cutting curved surface is constructed in the three-dimensional model according to the position relation between a lesion portion of the surgical site and peripheral blood vessels; (3) display, wherein the surgical site is cut into at least two portions according to the cutting curved surface, and a cutting result is output and is displayed. Therefore, the method and system for surgical planning based on the three-dimensional model build an accurate simulated surgery virtual platform which facilitates operation of operators, and position selection of surgery or treatment can be accurate.

Description

technical field [0001] The invention relates to the technical field of medical images, in particular to a method and system for surgical planning based on a three-dimensional model. Background technique [0002] Simulated surgery is a process in which a computer is used to produce a virtual surgical scene, and medical staff perform preoperative simulations through simulated surgery to formulate a surgical plan. With the development of computer technology, image processing technology and virtual reality technology, simulated surgery has become a research hotspot in recent years. It can improve the safety and accuracy of surgery and has attracted widespread attention. The traditional surgical incision relies solely on the doctor's touch and experience. The surgical planning realized on the computer can accurately select the incision point and incision position, which can greatly reduce the risk of surgery. Simulated surgical planning is of great significance and value for pro...

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Problems solved by technology

[0003] The application number published on July 6, 2011 is 2009102735162, and the Chinese patent titled "A method and system for comprehensive operation planning and simulation of liver tumors based on 3D multimodal imaging" discloses a method based on 3D multimodal imaging. The liver tumor comprehensive operation planning simulation method and its system, the system adopts one or more planar hepatectomy, boundary liver tumor excavation, and flexible irregular liver resection with deformed surface, etc., to simulate liver tumor resection, the patent does not A two-dimensional mouse interaction scheme for simulating the resection process is given, and the specific operation is inconvenient

Repeat this process to determine the cutting planes at all cutting points. This interactive method cannot intuitively display the cutting effect, and it is difficult to adjust to the ideal cutting effect. Because a series of cutting planes are used for cutting, the level The feeling will be more obvious, and the cutting result is not smooth enough

[0005] In the Chinese patent application published on November 19, 2008, the application number is 2006800412128, and the invention title is "Method and System for Liver Lobe Segmentation and Preoperative Operation Planning", which provides a method for liver lobe segmentation and preoperative operation planning. In this method, the user controls the direction of cutting through the mouse, and can adjust the depth of cutting, but this interactive method will be more difficult to operate in actual operation

and can only simulate liver tumor resection

[0006] Although simulated surgery technology has attracted the attention and attention of related research fields at home and abroad, and simulated surgery models applied in special fields have also appeared, there are still many problems to be solved, such as inability to perform flexible surgery planning, inability to interact, and poor adaptability Wait

[0007] In summary, the existing simulated surgery planning technology obviously has inconvenience and defects in actual use, so it is necessary to improve it

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