The direct use of CT numbers in radiotherapy dosage calculations for inhomogeneous media

Techniques by which the quantitative anatomical data inherent in a CT scan can be directly used in treatment planning are described. The correction algorithms used in the RAD-8 system, based on an effective path length, have been extended to a pixel-by-pixel approach. By calibrating the X-ray transm...

Full description

Saved in:
Bibliographic Details
Published inPhysics in medicine & biology Vol. 24; no. 4; pp. 802 - 809
Main Authors Parker, R P, Hobday, P A, Cassell, K J
Format Journal Article
LanguageEnglish
Published England IOP Publishing 01.07.1979
Subjects
Humans
Lung Neoplasms - radiotherapy
Patient Care Planning
Radiotherapy Dosage
Tomography, X-Ray Computed
Online AccessGet full text

Cover

More Information
Summary:Techniques by which the quantitative anatomical data inherent in a CT scan can be directly used in treatment planning are described. The correction algorithms used in the RAD-8 system, based on an effective path length, have been extended to a pixel-by-pixel approach. By calibrating the X-ray transmission CT scanner in terms of electron densities (electron cm-3) inhomogeneity corrections may be made automatically.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0031-9155
1361-6560
DOI:10.1088/0031-9155/24/4/011