A new system for noninvasive esophageal varices pressure measurement based on airflow and laser technology.
- Author:
Chenghuan HU
;
Feizhou HUANG
;
Rui ZHANG
;
Shaihong ZHU
;
Wanpin NIE
;
Xunyang LIU
;
Yinglong LIU
;
Peng LI
- Publication Type:Journal Article
- MeSH: Blood Pressure Determination; instrumentation; Esophageal and Gastric Varices; Image Processing, Computer-Assisted; Lasers; Software
- From: Chinese Journal of Medical Instrumentation 2014;38(4):247-250
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVECombined the optical principle with automatic control technology and computer real-time image detection technology to develop a non-contact system for noninvasive esophageal varices pressure measurement.
METHODSThe system included the adjustable air pump, laser device, image collection and analysis program. The feasibility and accuracy of the system were verified by in vitro experiments.
RESULTSThe bionic vascular pressure measured by this system had good correlation and repeatability with the actual pressure.
CONCLUSIONSThis system is accurate, feasible and has good application prospects.