Handheld intelligent fusion angiography navigation system

Abstract

The invention discloses a handheld intelligent fusion angiography navigation system applied to an autopsy process. The handheld intelligent fusion angiography navigation system comprises a handheld angiography device, an angiography navigation system display device and a magnetoelectric navigation device, wherein the handheld angiography device is used for injecting a contrast agent into a corpse,penetrating into a detected organ of the corpse and generating an angiographic image of a detected blood vessel of the corpse; the angiography navigation system display device is used for displayinga three-dimensional stereoscopic model established on the basis of the blood vessel in the detected blood vessel of the corpse; and the magnetoelectric navigation device is used for providing positioninformation of a dissection instrument and internal tissues and organs of the corpse in a true blood vessel wall character. According to the handheld intelligent fusion angiography navigation system,experiments and registration error calculation are carried out on simulated conduit path data, the accuracy and feasibility of a whole registration algorithm are verified, special equipment suitablefor angiography is designed, and a corpse blood circulation system is built, so as to simplify operation steps and reduce the technical operation difficulty.

Description

technical field [0001] The invention relates to the technical fields of image recognition and medical imaging, in particular to a hand-held intelligent fusion imaging navigation system. Background technique [0002] As one of the methods of forensic autopsy, cadaver angiography plays an important role in judicial practice as evidence or clues for investigation. However, among the five types of contrast agents commonly used at present, their effects are not ideal. There are problems such as poor stability in blood vessels, easy penetration out of blood vessel walls, and embolism of small blood vessels and capillaries. [0003] In traditional surgical dissection, forensic doctors need to collect two-dimensional sequential medical images of corpses before dissection, and formulate different dissection plans for different corpses based on the image information and their own experience. However, during the actual dissection process, forensic doctors cannot be accurate at all. Ob...

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Problems solved by technology

[0004] In order to solve the problem of contrast imaging in detecting corpse blood vessels in the current period, the present invention requests protection of a hand-held intelligent fusion contrast contrast navigation system, which can establish an accurate conversion relationship between the image coordinate system and the corpse coordinate system through spatial registration, and the navigation system real-time The positional relationship between the anatomical instrument model and the anatomical model constructed before surgery can be accurately displayed, and the angiographic image of the blood vessels detected in the cadaver can be reasonably displayed

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