Detection of intracavitary masses on gated scans: A phantom study

Bo Cho, Tsunehiro Yasuda, Richard H. Moore, Charles A. Boucher, H. William Strauss

Research output: Contribution to journalArticlepeer-review

Abstract

A series of 1.5, 2.0 and 3.0 cm diameter paraffin balls were placed on a 3 cm tether within a simulated left ventricular balloon phantom to determine the maximal balloon volume that permitted identification of the lesion. When images were recorded with the phantom statio- ary, the lesions could be detected at 100, 280 and 360 ml volumes, respectively. When the phantom was set in motion with a fixed 80 ml stroke volume, the lesions were detected at 120, 320 and 360 ml, respectively. These findings suggest that gating does not decrease lesion detection even when the lesion is freely mobile, and a 1.5 cm lesion would be difficult to detect in an enlarged ventricle, but 2 and 3 cm lesions could be detected even in the presence of moderate ventricular enlargement.

Original languageEnglish
Pages (from-to)469-477
Number of pages9
JournalNuclear Medicine Communications
Volume8
Issue number7
DOIs
StatePublished - Jul 1987
Externally publishedYes

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