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Intravascular Ultrasound Evaluation of Plaque Distribution at Curved Coronary Segments 11This work was supported in part by grants from Japan Cardiovascular Research Foundation (to M.Y.), Suita; from the Ministry of Health and Welfare (to M.Y.), Tokyo; and from Takeda Medical Research Foundation (to S.N.), Osaka, Japan

Intravascular Ultrasound Evaluation of Plaque Distribution at Curved Coronary Segments 11This work was supported in part by grants from Japan Cardiovascular Research Foundation (to M.Y.), Suita; from the Ministry of Health and Welfare (to M.Y.), Tokyo; and from Takeda Medical Research Foundation (to S.N.), Osaka, Japan

Authors :
Kazuhiro Suyama
Masakazu Yamagishi
Kunio Miyatake
Masaaki Uematsu
Satoshi Nakatani
Hiroshi Tsutsui
Toshihiko Asanuma
Yoshio Yasumura
Source :
The American Journal of Cardiology. 81:977-981
Publication Year :
1998
Publisher :
Elsevier BV, 1998.

Abstract

Although the distribution of atherosclerosis at the curved coronary segments has implications for atherogenesis and interventional procedures, few data exist regarding the plaque distribution in these sites. Therefore, we prospectively analyzed the intravascular ultrasound images of 55 coronary sites from 37 patients where the atherosclerotic plaque and pericardium were simultaneously demonstrated by intravascular ultrasound. The pericardial images were defined as a high-intensity linear echo image moving during cardiac cycles outside the vessel wall. By the line that was parallel to the pericardial image, the vessel area was divided into 2 semicircles with the same area, namely myocardial and pericardial sides. In each side, the maximal thickness, area, and percent area of plaque were measured. The plaque thickness and area of the myocardial side were significantly greater (1.5 ± 0.5 mm, 4.9 ± 2.1 mm2 or 66%, mean ± SD) than those of the pericardial side (1.1 ± 0.4 mm, 3.5 ± 2.1 mm2 or 45%, p

Details

ISSN :
00029149
Volume :
81
Database :
OpenAIRE
Journal :
The American Journal of Cardiology
Accession number :
edsair.doi...........6d67745d8c00d1931cb234c54d1f0363
Full Text :
https://doi.org/10.1016/s0002-9149(98)00075-7