title: [A new system for noninvasive esophageal varices pressure measurement based on airflow and laser technology].
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 collection and analysis program. The feasibility and accuracy of the system were verified 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.
authors.forename: Chenghuan
authors.initials: C
authors.lastname: Hu
authors.forename: Feizhou
authors.initials: F
authors.lastname: Huang
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.forename: Shaihong
authors.initials: S
authors.lastname: Zhu
authors.forename: Wanpin
authors.initials: W
authors.lastname: Nie
authors.forename: Xunyang
authors.initials: X
authors.lastname: Liu
authors.forename: Yinglong
authors.initials: Y
authors.lastname: Liu
authors.forename: Peng
authors.initials: P
authors.lastname: Li
mesh_terms: D001795:Blood Pressure Determination / Q000295:instrumentation*; D004932:Esophageal and Gastric Varices; D007091:Image Processing, Computer-Assisted; D007834:Lasers; D012984:Software