Transesophageal ultrasonic visual simulation system and method used for teaching and clinical skill training

Abstract

The invention relates to a transesophageal ultrasonic visual simulation system used for teaching and clinical skill training. The system comprises an intelligent body model, a TEE (transesophageal echocardiography) simulated probe, a probe posture device and a computer, wherein the probe posture device consists of a diastimeter, an angle measurer, a hook swing simulator and an ultrasonic sector rotation simulator. The invention also relates to a transesophageal ultrasonic visual simulation method, which comprises the following steps: 1, echocardiography data acquired from the data base of a clinical ultrasonograph of a hospital and data of corresponding relation between probe posture data positioned by the clinical ultrasonograph and TEE are stored in the computer of the transesophageal ultrasonic visual simulation system; 2, a virtual three-dimensional dynamic heart model is established and stored in the computer of the transesophageal ultrasonic visual simulation system; and 3, the transesophageal ultrasonic visual simulation system is used in simulated training.

Description

technical field [0001] The invention belongs to the technical field of medical image analysis and virtual simulation, and relates to a transesophageal ultrasound visualization simulation system and method for teaching and clinical skills training. Background technique [0002] Heart disease is the number one killer of human health. 1 / 3 of the world's population death is caused by heart disease, and hundreds of thousands of people die of heart disease every year in my country. Ultrasound diagnosis of heart disease has always been the focus and difficulty in the field of ultrasound diagnosis. Transesophageal echocardiography is a new development in the field of cardiovascular disease diagnosis and monitoring, and provides a new means for the diagnosis of various heart diseases and large vessel diseases. The structure and movement of the heart are very complex, which puts forward higher requirements for the examiner's spatial thinking ability and clinical thinking ability. Rese...

AI Technical Summary

Problems solved by technology

However, because the above-mentioned product belongs to a closed teaching system, clinical experience is not easy to be accumulated and expanded, which is not conducive to data sharing between teaching and clinical practice, and it is not easy to add clinical experience to the teaching system at any time

[0006] Japan’s transesophageal ultrasound simulation teaching equipment was successfully developed by Japan’s HRS Medical Systems Inc in 2008. This product includes analog probes, simulators, and image databases, but it does not realize three-dimensional visualization, and the key to TEE learning is two-dimensional ultrasound. The embodiment of the cut surface on the 3D visualized heart is difficult to be further improved to clinical surgical assistance due to the lack of open modeling

[0007] The invention patent of ZL 201010251812.5 "transesophageal echocardiography visualization simulation system and method" realizes the one-to-one matching between the posture data when collecting the transesophageal ultrasound section and the three-dimensional visualization heart section, proposes the pathological mining of heart diseases, and gives the corresponding The spatial position relationship between the ultrasound section and the virtual 3D heart model, but the 3D heart model reconstructed by this product lacks the analysis of the biomechanics and other characteristics of medical tissues, and cannot fully express the true texture of the heart

In addition, due to the unstable physical contact and communication line contact of the magnetic linkage sensor used in this product, when measuring the displacement distance, there will be no contact and slippage, which will cause some echocardiographic probe attitude parameters ( Especially the displacement distance parameter) is not accurate, which greatly reduces the realism and accuracy of the simulation

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