Four-dimensional computed tomography (4D CT)--concepts and preliminary development.

Masahiro Endo; Takanori Tsunoo; Susumu Kandatsu; Shuji Tanada; Hiroshi Aradate; Yasuo Saito

PubMed · 12801139

Four-dimensional computed tomography (4D CT)--concepts and preliminary development.

Masahiro Endo·Takanori Tsunoo·Susumu Kandatsu·Shuji Tanada·Hiroshi Aradate·Yasuo Saito

Abstract

Four-dimensional computed tomography (4D CT) is a dynamic volume imaging system of moving organs with an image quality comparable to that of conventional CT. 4D CT will be realized by several technical breakthroughs for dynamic cone-beam CT: (1) a large-area two-dimensional (2D) detector; (2) high-speed data transfer system; (3) reconstruction algorithms; (4) ultra-high-speed reconstruction computer; and (5) high-speed, continuously rotating gantry. Among these, development of the 2D detector is one of the main tasks because it should have as wide a dynamic range and as high a data acquisition speed (view rate) as present CT detectors. We are now developing a 4D CT scanner together with the key components. It will take one volume image in 0.5 sec with a 3D matrix of 512 x 512 x 512. This paper describes the concepts and designs of the 4D CT system, as well as preliminary development of the 2D detector.

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Equipment Design Humans Image Processing, Computer-Assisted Tomography, X-Ray Computed Journal Article Research Support, Non-U.S. Gov't

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Masahiro Endo, Takanori Tsunoo, Susumu Kandatsu, Shuji Tanada, Hiroshi Aradate, Yasuo Saito. Four-dimensional computed tomography (4D CT)--concepts and preliminary development.. https://pubmed.ncbi.nlm.nih.gov/12801139/

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