A New System for Noninvasive Esophageal Varices Pressure Measurement Based on Airfl ow and Laser Technology
10.3969/j.issn.1671-7104.2014.04.004
- VernacularTitle:基于气流与激光技术的食道曲张静脉无创测压新系统
- Author:
Chenghuan HU
1
;
Feizhou HUANG
;
Rui ZHANG
;
Shaihong ZHU
;
Wanpin NIE
;
Xunyang LIU
;
Yinglong LIU
;
Peng LI
Author Information
1. 中南大学湘雅三医院普外科
- Keywords:
airfl ow;
laser;
noninvasive;
pressure measurement
- From:
Chinese Journal of Medical Instrumentation
2014;(4):247-250
- CountryChina
- Language:Chinese
-
Abstract:
Objective Combined 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.Methods The system included the adjustable air pump, laser device, image colection and analysis program. The feasibility and accuracy of the system were verifi ed by in vitro experiments.Results The bionic vascular pressure measured by this system had good correlation and repeatability with the actual pressure.Conclusions This system is accurate, feasible and has good application prospects.
