Two-dimensional Doppler echocardiographic correlation of dipyridamole-thallium stress testing with isometric handgrip

Journal Article · Wed May 01 00:00:00 EDT 1991 · American Heart Journal; (USA)

DOI:https://doi.org/10.1016/0002-8703(91)90140-D· OSTI ID:5683214

Whitfield, S; Aurigemma, G; Pape, L; Leppo, J ^[1]

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1. Univ. of Massachussetts Medical Center, Worcester (USA)

To determine how frequently new wall-motion abnormalities that are indicative of ischemia accompany thallium redistribution, 47 consecutive patients underwent two-dimensional, echocardiography during routine dipyridamole-thallium stress testing. A secondary aim of the study was to determine whether the addition of isometric handgrip exercises to the standard dipyridamole imaging protocol increased the frequency of wall-motion abnormalities or thallium redistribution. Echocardiograms and thallium scans were independently interpreted, and wall-motion abnormalities that appeared with dipyridamole, handgrip exercise, or both were compared with results of thallium imaging. Five of 24 patients with thallium redistribution had new wall-motion abnormalities, and the extent (number of segments) of thallium redistribution in these five patients was significantly greater than in those who did not have well-motion abnormalities (p less than 0.03). The addition of isometric handgrip exercises to the imaging protocol did not distinguish between patients with and without new wall-motion abnormalities or thallium redistribution. Thus new wall-motion abnormalities infrequently accompany thallium redistribution in routine dipyridamole stress testing in spite of the addition of handgrip exercises, but when new wall-motion abnormalities are present, they are associated with a greater area of thallium redistribution.

• OSTI ID: 5683214
• Journal Information: American Heart Journal; (USA), Journal Name: American Heart Journal; (USA) Vol. 121:5; ISSN AHJOA; ISSN 0002-8703
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BODY
CARDIOVASCULAR AGENTS
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
CORRELATIONS
COUNTING TECHNIQUES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
DRUGS
HEART
IMAGE PROCESSING
ISOTOPES
ORGANS
PATIENTS
PROCESSING
RADIOISOTOPE SCANNING
SCINTISCANNING
THALLIUM ISOTOPES
ULTRASONOGRAPHY
VASODILATORS