Patterns of papillary muscle ischemia in myocardial PET.

Abstract:

PURPOSE:Conventional nuclear medicine equipment lacks sufficient spatial resolution to reliably visualize the papillary muscles (PM). Positron emission tomography (PET), however, can adequately visualize these structures using various positron emitters. METHODS AND PATIENTS:We present various patterns of PM observed on myocardial PET imaging in 4 patients. These patterns demonstrate different pathologic conditions such as PM ischemia of varying severity, as well as hibernation, using both N-13 NH3 and F-18 FDG as perfusion and metabolic agents, respectively. These patterns of infarction, stress-induced myocardial ischemia, or hibernation can be identified in one or both PM using PET scanning. Normal PM visualization on chest F-18 FDG PET images is also presented. CONCLUSION:This report illustrates the potential ability of myocardial PET as a noninvasive modality to study the perfusion and metabolic abnormalities of the PM.

journal_name

Clin Nucl Med

authors

Steinmetz AP,Maisey MN,Hardoff R

doi

10.1097/01.rlu.0000102760.54371.b4

keywords:

subject

Has Abstract

pub_date

2004-01-01 00:00:00

pages

1-4

issue

1

eissn

0363-9762

issn

1536-0229

journal_volume

29

pub_type

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