A gradient processor for high speed medical imaging

Author

Margala, Martin ; Durdle, Nelson G. ; Juskiw, Scott ; Raso, V. James ; Hill, Doug L.

Author_Institution

Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada

fYear

1994

fDate

19-23 Sep 1994

Firstpage

246

Lastpage

249

Abstract

This paper presents a gradient processor constructed with enhanced multiplier structures. The gradient processor is part of a shading processor being developed for a high performance medical imaging system with a display rate of at least 30 frames per second. The proposed system overcomes current image resolution and frame-rate limitations through the use of custom high-speed processors. The gradient processor performs three arithmetic operations: a square and add operation, square-root, and three division operations. All three operations are performed in 30 ns with an overall error less than ±0.78%

Keywords

BiCMOS digital integrated circuits; biomedical NMR; computerised tomography; digital arithmetic; digital signal processing chips; image reconstruction; medical image processing; real-time systems; 30 ns; arithmetic operations; computed tomographs; custom high-speed processors; display rate; enhanced multiplier structures; frame-rate limitations; gradient processor; high speed medical imaging; image resolution; magnetic resonance scans; overall error; shading processor; Arithmetic; Biomedical engineering; Biomedical imaging; Computer architecture; Hardware; Image resolution; Medical diagnostic imaging; Real time systems; Reconstruction algorithms; Workstations;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC Conference and Exhibit, 1994. Proceedings., Seventh Annual IEEE International

Conference_Location

Rochester, NY

Print_ISBN

0-7803-2020-4

Type

conf

DOI

10.1109/ASIC.1994.404566

Filename

404566