Abstract:
:The purpose of this study was to assess the blooming artifacts in ex vivo coronary arteries at multidetector computed tomography (CT) and flat-panel-volume CT by comparing measured areas of calcified plaque with respect to the reference standard of histopathologic findings. Three ex vivo hearts were scanned with multidetector CT and flat-panel-volume CT after institutional review board approval. The area of calcified plaque was measured at histopathologic examination, multidetector CT, and flat-panel-volume CT. The plaque area was overestimated at multidetector CT by 400% (4.61/1.15) on average, and the predicted difference between the measurements was significant (3.46 mm(2), P = .018). The average overestimation of plaque area at flat-panel-volume CT was twofold (214% [2.18/1.02]), and the predicted difference was smaller (1.16 mm(2), P = .08). The extent of the blooming artifact in visualizing calcified coronary plaque is reduced by using flat-panel-volume CT.
journal_name
Radiologyjournal_title
Radiologyauthors
Sarwar A,Rieber J,Mooyaart EA,Seneviratne SK,Houser SL,Bamberg F,Raffel OC,Gupta R,Kalra MK,Pien H,Lee H,Brady TJ,Hoffmann Udoi
10.1148/radiol.2483072003subject
Has Abstractpub_date
2008-10-01 00:00:00pages
301-6issue
1eissn
0033-8419issn
1527-1315pii
2483072003journal_volume
249pub_type
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