The effect of eating on thallium myocardial imaging

R. A. Wilson, P. J. Sullivan, R. D. Okada, C. A. Boucher, C. Morris, G. M. Pohost, H. W. Strauss

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

To determine if eating between initial and delayed thallium images alters the appearance of the delayed thallium scan, a prospective study was performed; 184 subjects sent for routine thallium imaging were randomized into two groups, (1) those who ate a meal high in carbohydrates between initial and delayed thallium myocardial images (n = 106), and (2) those who fasted (n = 78). The 201Tl images were interpreted in blinded fashion for global myocardial and pulmonary clearance of 201Tl and for the presence of transient or persistent 201Tl myocardial defects. The eating group had a significantly lower incidence of transient myocardial defects compared to the noneating group (7 per cent vs 18 percent, respectively; p<0.05). The time between initial and delayed images and the incidence of exercise induced ischemic ST-segment depression or pathologic Q waves on the electrocardiogram were not significantly different between the two groups. These data suggest that eating a high-carbohydrate meal between initial and delayed 201Tl images causes increased 201Tl myocardial clearance rates and may alter 201Tl myocardial redistribution over time.

Original languageEnglish
Pages (from-to)195-198
Number of pages4
JournalChest
Volume89
Issue number2
DOIs
StatePublished - 1986

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