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Cited by 347

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

New Noninvasive Method for Coronary Flow Reserve Assessment: Contrast-Enhanced Transthoracic Second Harmonic Echo Doppler

Open access
Caiati, Carlo, Montaldo, Cristiana, Zedda, Norma, Bina, Alessandro, Iliceto, Sabino·1999·Circulation

Abstract

Background —We tested the hypothesis that blood flow velocity could be recorded in the left anterior descending coronary artery (LAD) during transthoracic echocardiography by use of second harmonic echo Doppler modality along with contrast enhancement (intravenous Levovist) at rest and after pharmacologically induced maximal vasodilation to assess coronary flow reserve (CFR) with a totally noninvasive approach. Methods and Results —Fifty-six consecutive patients undergoing coronary angiography underwent transthoracic contrast-enhanced pulsed-wave Doppler recording of blood flow velocity in the LAD by use of harmonic color Doppler as a guide at rest and after maximal vasodilation by dipyridamole infusion. Contrast enhancement with the harmonic mode greatly improved the success rate of recording adequate pulsed-wave Doppler signal in the LAD. CFR was (mean±SD) 1.54±0.7 in patients with (group 1) and 2.79±0.9 in patients without (group 2) significant LAD stenosis (lumen narrowing >70%) ( P <0.001); sensitivity and specificity in detecting significant LAD stenosis were 86% and 90%, respectively. There was close agreement between CFRs determined by this new method and intracoronary Doppler flow wire. Conclusions —Contrast-enhanced transthoracic echo Doppler with the harmonic mode is a feasible and promising technique for assessing CFR in a totally noninvasive way.

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Crossref · 10.1161/01.cir.99.6.771

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Metadata

Authors
Caiati, C., Montaldo, C., Zedda, N., Bina, A., & Iliceto, S.
Venue
Circulation
Published
1999-02-16
Volume
99
Issue
6
Pages
771-778
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2010194853
Cited by
347
References
9
FWCI
22.79
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: New Noninvasive Method for Coronary Flow Reserve Assessment: Contrast-Enhanced Transthoracic Second Harmonic Echo Doppler. https://app.cochat.ai/papers/10.1161/01.cir.99.6.771
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Caiati, C., Montaldo, C., Zedda, N., Bina, A., & Iliceto, S. (1999). New Noninvasive Method for Coronary Flow Reserve Assessment: Contrast-Enhanced Transthoracic Second Harmonic Echo Doppler. Circulation. https://doi.org/10.1161/01.cir.99.6.771

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