Multimode image navigation system for ultrasonic guidance operation

Abstract

The invention discloses a multimode image navigation system for an ultrasonic guidance operation. An ultrasonic image system acquires preoperative image data and stores the preoperative image data to a preoperative data module, and the ultrasonic image system extracts the preoperative image data to construct human three-dimensional model data and stores the human three-dimensional model data to a preoperative data module. A locating module acquires position information of an ultrasonic probe in an operative instrument and the ultrasonic image system and transmits the position information to the ultrasonic image system. The ultrasonic image system extracts the human three-dimensional model data stored in the preoperative data module and matches the position information with the human three-dimensional model data. A display module acquires and displays the information matched by the ultrasonic image system. Images are presented in real time in an operation by locating an operative area through real-time ultrasonic data according to the preoperative image data and the human three-dimensional model data, the operative instrument is accurately located according to the locating module, and the position of the operative instrument in a human model is presented.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a multi-mode image ultrasound-guided surgical navigation system. Background technique [0002] Medical images are acquired by endoscopic devices, ultrasound devices, computed tomography (CT) devices, magnetic resonance imaging (MRI) devices, positron emission tomography (PET) devices, and the like. Different medical imaging modes have their own different characteristics and present physiological information of various characteristics of the human body; different medical imaging modes complement each other's deficiencies at the same time, for example, ultrasound imaging has a better resolution performance for soft tissues, but for hard organs ( Such as bone) resolution performance is not ideal; CT imaging has strong resolution ability for hard organs, but insufficient for soft tissue resolution. [0003] Single-modal images cannot completely reflect human body information. In order...

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Problems solved by technology

[0005] There are two types of traditional surgical navigation: the first type relies on doctors to watch preoperative CT and MRI images for intraoperative navigation, which lacks registration assistance and usually cannot meet the requirements of providing real-time navigation information for doctors; the second type uses The method of applying markers on the patient, according to the tracking of the markers during the operation, realizes the positioning of the human body, thereby performing basic surgical navigation, and performing surgical navigation based on preoperative image information

[0006] Disadvantages of the first type of traditional surgical navigation system: 1. Only preoperative image information is provided for visual reference during the operation, and the doctor cannot obtain real-time intraoperative image information; 2. The doctor cannot obtain the position information of the surgical instrument relative to the patient, only the doctor Experience does not guarantee the safety of surgery

[0007] Disadvantages of the second type of traditional surgical navigation system: 1. The system must require markers to be effective for both preoperative imaging and intraoperative tracking; 2. Only preoperative images are provided during the operation for the doctor’s reference, and the doctor cannot obtain real-time surgical reference information; 3. The deformation and movement of the patient's organs will cause a large error to the entire navigation system, and the stability is poor

[0009] Patent Application No. 201110202475.5 "Ultrasonic Surgical Navigation System and Ultrasonic Surgical Navigation Method" has the following disadvantages: 1. The system only reflects two-dimensional real-time information in three-dimensional space, which has no great significance for doctors' operations; Utilizing the rich preoperative image information allows doctors to break away from the image information referred to in preoperative diagnosis; 3. The solution is centered on the positioning system and lacks the enrichment of intraoperative images, which is not conducive to doctors' intraoperative judgment

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