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[Transthoracic digital color Doppler assessment of the left anterior descending coronary artery and intramyocardial blood flow].

Abstract：

:Noninvasive assessment of the distal left anterior descending coronary artery and intramyocardial blood flow were attempted in 50 consecutive patients (28 males and 22 females, mean age [+/-SD] 58 +/- 12 years) using a 7.5 MHz transducer (Doppler frequency: 5 MHz) and a SSA-380A ultrasound digital system with special optimal settings for the color Doppler examination. Modified apical acoustic windows were used to visualize the blood flow in the distal left anterior descending coronary artery and the intramyocardial artery. By selecting a sample volume (2 mm wide) on the color trace of these blood flows, Doppler spectral tracing of the distal left anterior descending coronary artery and intramyocardial blood flows could be recorded using pulsed-wave Doppler system. Blood flow in the distal left anterior descending coronary artery was detected in 43 (86%, Vmax = 22 +/- 8.7 cm/sec, Vmean = 16 +/- 5.1 cm/sec) of 50 patients, and intramyocardial blood flow in 40 (80%, Vmax = 26 +/- 11.0 cm/sec, Vmean = 19 +/- 8.5 cm/sec) of 50 patients. Distal left anterior descending coronary artery and the intramyocardial blood flows can be imaged by transthoracic digital color Doppler echocardiography in the clinical setting.

journal_name

J Cardiol

journal_title

Journal of cardiology

authors

Yagi T,Yoshida K,Hozumi T,Akasaka T,Takagi T,Kaji S,Kawamoto T,Kawai J,Morioka S,Yoshikawa J

subject

Has Abstract

pub_date

1997-07-01 00:00:00

pages

9-12

issue

1

eissn

0914-5087

issn

1876-4738

journal_volume

30

pub_type

杂志文章

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