Method for executing three-dimensional cardiac ultrasound virtual endoscopy

Abstract

The invention provides a method for executing three-dimensional cardiac ultrasound virtual endoscopy. The method comprises the following steps of: acquiring an ultrasound sectional image on a complete cardiac cycle of a patient heart from data acquisition equipment; acquiring a three-dimensional data set which comprises two-dimensional image information of an overall heat by using the ultrasound sectional image; performing three-dimensional reconstruction according to the data set; setting a moveable and controllable virtual endoscopic viewpoint in a three-dimensional visual image; and controlling the virtual endoscopic viewpoint to move in a three-dimensionally displayed cardiac chamber so as to generate a plurality of frames of magnified images that a structural target in an observed heart is close to an observer continuously in a corresponding cardiac cycle. Due to the adoption of the method, the virtual viewpoint observation position can be converted at any time according to the requirement of the observer; and the observer can observe a movement change situation of a structure in the heart in the complete cardiac cycle.

Description

【Technical field】 [0001] The invention relates to the technical field of computerized medical imaging, in particular to a method for performing three-dimensional cardiac ultrasound virtual endoscopy. 【Background technique】 [0002] Among pediatric diseases, congenital heart disease (CHD) is one of the leading causes of infant death. At least 100,000 to 150,000 children with congenital heart disease are born every year in our country, and complex congenital heart disease accounts for 35-38%, of which 60-80% are in a critical state after birth, because of failure to make accurate anatomical diagnosis in time and early Correction and death. Although traditional cardiac catheterization can achieve a more accurate diagnosis, its invasiveness often makes it unbearable for critically ill patients. Two-dimensional echocardiography (2DE) is a non-invasive diagnostic technique, but since complex congenital heart disease is a combination of various intracardiac and extracardiac malfo...

AI Technical Summary

Problems solved by technology

Although traditional cardiac catheterization can achieve a more accurate diagnosis, its invasiveness often makes it unbearable for critically ill patients

Two-dimensional echocardiography (2DE) is a non-invasive diagnostic technique, but since complex congenital heart disease is a combination of various intracardiac and extracardiac malformations or defects in three-dimensional space, the shape of the heart and its composition The spatial position relationship of the patient often plays an important role in the diagnosis, and the examiner must perform three-dimensional spatial imagination on a series of two-dimensional images to make a three-dimensional diagnosis, which cannot meet the requirements for accurate diagnosis of complex congenital heart disease in three-dimensional space

[0005] However, the heart is a relatively special organ. The heart of the observed object is in an active state. In each cardiac cycle, the heart is constantly moving. When sampling under the gate control of the electrocardiogram and respiratory cycle, due to sampling errors and the uncooperative patient Due to factors such as loss of data sampling and processing distortion in image reconstruction, it brings certain difficulties to virtual heart observation and measurement. In addition, due to the complex structure of the heart, the observer also suffers from disorientation.

Images