Puncture guidance method, fast low-dose ct puncture guidance method, and triple-source computed tomography system

Abstract

A puncture guidance method, a fast low-dose computed tomography (CT) puncture guidance method, and a triple-source CT system. The puncture guidance method includes: performing, in a triple-source CT system, a full scan or half scan to obtain a first image, wherein the first image corresponds to a puncture needle being at a first position; determining, in an image domain, a plurality of second images according to the first image, wherein the second images correspond to the puncture needle being at other positions different from the first position; and determining a position of the puncture needle by using actual projection data from triple-source and triple-detector at three preset angles and forward projections of the plurality of second images at the three angles.

Dependencies are inferred from the claim text.