Detection of calcium deposits on heart valve leaflets by vibro-acoustography: An in vitro study

被引：31

作者：

Alizad, A

Fatemi, M

Nishimura, RA

Kinnick, RR

Rambod, E

Greenleaf, JF

机构：

[1] Mayo Clin & Mayo Fdn, Basic Ultrasound Res, Dept Physiol & Biophys, Rochester, MN 55905 USA

[2] Mayo Clin & Mayo Fdn, Div Cardiovasc, Dept Internal Med, Rochester, MN 55905 USA

[3] BioQuantet Inc, Los Angeles, CA USA

来源：

JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY | 2002年 / 15卷 / 11期

关键词：

D O I：

10.1067/mje.2002.124985

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

The presence of calcium deposits on heart valve leaflets constitutes a clinically significant diagnostic indication. A novel method for imaging and detecting calcium deposits on tissue heart valves is presented. The method, called vibro-acoustography, uses the radiation force of ultrasound to vibrate the tissue at low (kHz) frequency and records the resulting acoustic response to produce images that are related to the hardness of the tissue. The method is tested on excised human heart valve tissues. Resulting images clearly show calcium deposits with high contrast and are in agreement with the corresponding radiographs of the specimens.

引用

页码：1391 / 1395

页数：5

共 24 条

[1] Nonobstructive aortic valve calcium as a window to atherosclerosis of the aorta [J].