In vivo pressure estimation using subharmonic contrast microbubble signals: Proof of concept

被引：88

作者：

Forsberg, F ^{[1
]}

Liu, JB

Shi, WT

Furuse, J

Shimizu, M

Goldberg, BB

机构：

[1] Thomas Jefferson Univ, Dept Radiol, Philadelphia, PA 19107 USA

[2] Natl Canc Hosp E, Chiba, Japan

[3] Tokyo Med Univ, Tokyo, Japan

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2005年 / 52卷 / 04期

关键词：

D O I：

10.1109/TUFFC.2005.1428040

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Changes in ambient pressure affects the reflectivity of ultrasound contrast microbubbles leading to an excellent correlation between subharmonic signals and hydrostatic pressure. The aortas of two dogs were scanned with an experimental pulse-echo system to validate in vivo pressure estimation based on subharmonic microbubble signals. Results matched well with instantaneous pressure measurements (from 20-60 mmHg) obtained simultaneously with a pressure catheter (root mean square errors < 27%).

引用

收藏

页码：581 / 583

页数：3

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