Comparison of dipyridamole-Doppler echocardiography to thallium-201 imaging and quantitative coronary arteriography in the assessment of coronary artery disease

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Am. J. Cardiol.; (United States)

DOI:https://doi.org/10.1016/0002-9149(89)91041-2· OSTI ID:5719053

Grayburn, P A; Popma, J J; Pryor, S L; Walker, B S; Simon, T R; Smitherman, T C

This study was undertaken to determine whether Doppler measurements of systolic aortic and diastolic mitral blood flow velocities could reliably detect the presence of reversible myocardial perfusion defects during intravenous dipyridamole-thallium-201 imaging. In addition, the ability of dipyridamole-Doppler echocardiography to predict the presence of significant coronary artery disease (CAD) was evaluated. Baseline and post-dipyridamole Doppler studies were performed in 10 normal control subjects and 23 patients with CAD. Aortic peak velocity and acceleration increased from baseline to post-dipyridamole in normal subjects by 0.07 +/- 0.07 m/s (p = 0.016) and 2.1 +/- 2.0 m/s2 (p = 0.009), respectively. The ratio of early to late peak transmitral velocities decreased slightly in normal subjects, by 0.18 +/- 0.72 (difference not significant), whereas the ratio of early to late transmitral velocity-time integrals increased by 0.07 +/- 0.93 (difference not significant). The response of aortic velocity and acceleration to intravenous dipyridamole was not significantly different between normal subjects, patients without reversible thallium-201 perfusion defects and patients with reversible thallium-201 perfusion defects. Furthermore, only 3 of 14 subjects with reversible thallium-201 perfusion defects had abnormal (greater than 2 standard deviations from the mean) responses of aortic velocity or acceleration to intravenous dipyridamole. No patient had an abnormal response of the early to late mitral peak velocity ratio. In addition, the response of Doppler aortic and mitral indexes to intravenous dipyridamole was not able to identify the presence of significant CAD as assessed by quantitative coronary arteriography.

• Research Organization: Veterans Administration Medical Center, Dallas, TX (USA)
• OSTI ID: 5719053
• Journal Information: Am. J. Cardiol.; (United States), Journal Name: Am. J. Cardiol.; (United States) Vol. 63:18; ISSN AJCDA
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
AORTA
ARTERIES
BETA DECAY RADIOISOTOPES
BIOMEDICAL RADIOGRAPHY
BLOOD FLOW
BLOOD VESSELS
BODY
CARDIOVASCULAR AGENTS
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COMPARATIVE EVALUATIONS
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
DRUGS
ELECTRON CAPTURE RADIOISOTOPES
HEART
HEAVY NUCLEI
IMAGE PROCESSING
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEDICINE
NUCLEAR MEDICINE
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
PROCESSING
RADIOISOTOPES
RADIOLOGY
SECONDS LIVING RADIOISOTOPES
THALLIUM 201
THALLIUM ISOTOPES
ULTRASONOGRAPHY
VASODILATORS