Published April 21, 2015 | Version v1
Journal article Metadata-only

The fan-beam short-scan FBP algorithm is not exact

Creators

  • 1. Department of Engineering, Weber State University, Ogden, UT 84408 (United States)

Description

The fan-beam short-scan filtered backprojection (FBP) algorithm is popular in the computed tomography (CT) industry and in clinical applications. This paper points out that the fan-beam short-scan FBP algorithm is not exact, even in an ideal noiseless situation. The error depends on the focal length of the imaging geometry. When the focal length is long enough, the error is small and can therefore be ignored. (note)

Availability note (English)

Available from http://dx.doi.org/10.1088/0031-9155/60/8/N131

Additional details

Identifiers

DOI
10.1088/0031-9155/60/8/N131;

Publishing Information

Journal Title
Physics in Medicine and Biology
Journal Volume
60
Journal Issue
8
Journal Page Range
p. N131-N139
ISSN
0031-9155
CODEN
PHMBA7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47084588
Subject category
S62: RADIOLOGY AND NUCLEAR MEDICINE;
Descriptors DEI
ALGORITHMS; BEAMS; BIOMEDICAL RADIOGRAPHY; COMPUTERIZED TOMOGRAPHY; ERRORS
Descriptors DEC
DIAGNOSTIC TECHNIQUES; MATHEMATICAL LOGIC; MEDICINE; NUCLEAR MEDICINE; RADIOLOGY; TOMOGRAPHY