Document Detail


Factors related to low contrast resolution in CT scanners.
MedLine Citation:
PMID:  6509955     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The concept of "low contrast resolution" in CT scanners is examined. Several questions are raised, not only about limitations to interpretation of figures of merit of low contrast resolution, such as contrast-detail diagrams; but also, interpretation of related CT physical performance parameters, such as: noise, dose, spatial resolution and slice width (or sensitivity profile). Caveats are raised concerning interpretation of contrast-detail studies and the degree to which first-order observer studies are reflective of the actual clinical situation. Particular care is suggested in interpretating contrast-detail diagrams in which sensitivity, specificity and the number of target signals may be varying.
Authors:
D J Goodenough; K E Weaver
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Computerized radiology : official journal of the Computerized Tomography Society     Volume:  8     ISSN:  0730-4862     ISO Abbreviation:  Comput Radiol     Publication Date:    1984 Sep-Oct
Date Detail:
Created Date:  1985-02-04     Completed Date:  1985-02-04     Revised Date:  2000-12-18    
Medline Journal Info:
Nlm Unique ID:  8208620     Medline TA:  Comput Radiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  297-308     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Models, Structural
Radiation Dosage
Technology, Radiologic / standards
Tomography, X-Ray Computed / instrumentation,  standards*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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