Postprocessing techniques for time-resolved contrast-enhanced MR angiography.

TitlePostprocessing techniques for time-resolved contrast-enhanced MR angiography.
Publication TypeJournal Article
Year of Publication2002
AuthorsYoo SK, Watts R, Winchester PA, Zabih R, Wang Y, Prince MR
JournalRadiology
Volume222
Issue2
Pagination564-8
Date Published2002 Feb
ISSN0033-8419
KeywordsAdult, Aged, Aged, 80 and over, Contrast Media, Female, Humans, Magnetic Resonance Angiography, Male, Middle Aged, Radiographic Image Enhancement, Time Factors
Abstract

The purpose of this study was to improve dynamic two-dimensional projection magnetic resonance digital subtraction angiography by using remasking and filtering postprocessing techniques. Four methods were evaluated in 50 patients: default mask subtraction, remasked subtraction, filtering based on the SD, and linear filtering. The results demonstrated that postprocessing techniques such as linear filtering can reduce background motion artifacts and improve arterial contrast-to-noise ratio.

DOI10.1148/radiol.2222010608
Alternate JournalRadiology
PubMed ID11818629
Grant ListR01 HL60879 / HL / NHLBI NIH HHS / United States
R01 HL62994 / HL / NHLBI NIH HHS / United States
Related Institute: 
MRI Research Institute (MRIRI)

Weill Cornell Medicine
Department of Radiology
525 East 68th Street New York, NY 10065