In vivo pressure estimation using subharmonic contrast microbubble signals: proof of concept |
| |
Authors: | Forsberg Flemming Liu Ji-Bin Shi William T Furuse Junji Shimizu Masafumi Goldberg Barry B |
| |
Affiliation: | Dept. of Radiol., Thomas Jefferson Univ., Philadelphia, PA, USA; |
| |
Abstract: | 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%). |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|