Blood vessel computer aided iconography evaluating system

Abstract

The invention relates to a blood vessel computer aided iconography evaluating system. The system comprises the following contents: (A) transmission of CTA (Computed Tomography Angiography) from a CT (Computed Tomography) working station to a PC (Personal Computer), wherein a transmission way comprises network card connection, CD burning and CT film scanning; (B) CTA three-dimensional reconstruction, wherein a three-dimensional reconstruction method comprises shaded surface display (SSD), maximum intensity projection (MIP) and multiplane reformation (MPR), obtains various real and clear three-dimensional models and images and can be used for observing a blood vessel three-dimensional space structure anytime and anywhere and lay the foundation for the three-dimensional measurement of various blood vessel geometric parameters; (C) blood vessel structure three-dimensional measurement; and (D) aneurysm endovascular graft exclusion virtual graft. The invention provides the computer aided iconography evaluating system which is suitable for people to use at random and is more accurate. In addition, the invention plays a role in blood vessel surgical scientific research, teaching, surgery training, and the like. The system realized by the invention is stable and reliable and is suitable for being popularized and used in blood vessel surgery centers of various large, medium and small hospitals.

Description

technical field [0001] The invention relates to a blood vessel computer aided imaging evaluation system. Background technique [0002] In recent years, endovascular surgery, represented by endovascular exclusion, has developed rapidly and has gradually replaced many traditional vascular operations. The methods and implementation steps of endovascular surgery are quite different from those of traditional surgery, and their reliance on vascular imaging evaluation is also different. Traditional surgery is carried out under direct vision relying on the three-dimensional coordinate system of the eye and hand. The doctor can directly observe and accurately measure the blood vessels in the diseased segment from the outside and inside, and can cut artificial blood vessels and other surgical materials arbitrarily according to needs to meet the needs of patients. different anatomical needs. Therefore, traditional surgery does not have high requirements for obtaining accurate vascula...

AI Technical Summary

Problems solved by technology

Since the course of blood vessels is often not a straight line, but curved or twisted at an angle, the above measurement method of linearizing the curve is very imprecise

For another example, the measurement of the diameter of blood vessels is by artificially selecting a plane perpendicular to the blood flow axis, also known as the vertical screen section. The diameter is measured on this plane, but the ellipse or irregular vertical screen section must be selected to represent It is still very difficult to measure the true diameter of the radial line, and there are large accidental errors. In addition, the vertical cut plane is manually selected, and the verticality cannot be guaranteed.

The existence of the above situations and problems seriously restricts the imaging evaluation function of CTA

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