Picture quality of computed tomography

Some limitations that impair the picture quality of computed tomography are presented. Picture grain is analyzed in detail and its relationship to different matrix sizes is demonstrated. The choices of matrix size for viewing various parts of the body are defined, and the need for higher resolution...

Full description

Saved in:

Bibliographic Details
Published in:	American journal of roentgenology (1976) Vol. 127; no. 1; pp. 3 - 9
Main Author:	Hounsfield, GN
Format:	Journal Article
Language:	English
Published:	United States Am Roentgen Ray Soc 01-07-1976
Subjects:	Computers Head - diagnostic imaging Heart - diagnostic imaging Humans Radiation Dosage Radiography, Abdominal Technology, Radiologic Tomography, X-Ray
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Some limitations that impair the picture quality of computed tomography are presented. Picture grain is analyzed in detail and its relationship to different matrix sizes is demonstrated. The choices of matrix size for viewing various parts of the body are defined, and the need for higher resolution in the future is debated. Comparison is made between two scanning systems: the moving fan beam with rotation and the simple rotating fan beam. Possible artifacts in the picture caused by drift and delay in dector response are discussed.
ISSN:	0361-803X 1546-3141
DOI:	10.2214/ajr.127.1.3