Faculty Opinions recommendation of Early detection of spontaneous blood loss using amplitude modulation of Photoplethysmogram.

2012 ◽  
Author(s):  
Allan Shang
Keyword(s):  
Early Detection ◽  
Blood Loss ◽  
Amplitude Modulation

Use of Stroke Distance in the Early Detection of Simulated Blood Loss

1998 ◽  
Vol 44 (1) ◽  
pp. 128-134 ◽  
Author(s):  
J. M. Hanson ◽  
R. Van Hoeyweghen ◽  
E. Kirkman ◽  
A. Thomas ◽  
M. A. Horan
Keyword(s):  
Early Detection ◽  
Blood Loss ◽  
Stroke Distance

scholarly journals A Non-Invasive Stroke Volume Monitoring for Early Detection of Minimal Blood Loss

Shock ◽  
2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Danny Epstein ◽  
Ariel Guinzburg ◽  
Saar Sharon ◽  
Shai Kiso ◽  
Yuval Glick ◽  
...  
Keyword(s):  
Early Detection ◽  
Blood Loss ◽  
Stroke Volume ◽  
Non Invasive

Time-varying Methods for Characterizing Nonstationary Dynamics of Physiological Systems

2010 ◽  
Vol 49 (05) ◽  
pp. 435-442 ◽  
Author(s):  
N. Selvaraj ◽  
J. Lee ◽  
K. H. Chon
Keyword(s):  
Early Detection ◽  
Blood Loss ◽  
Real Time ◽  
Particle Filtering ◽  
Clinical Monitoring ◽  
Time Varying ◽  
Parametric Approach ◽  
Abrupt Changes ◽  
Spontaneously Breathing ◽  
Ventilated Patients

Summary Background: Accurate and early diagnosis of various diseases and pathological conditions require analysis techniques that can capture time-varying (TV) dynamics. In the pursuit of promising TV signal processing methods applicable to real-time clinical monitoring applications, nonstationary spectral techniques are of great significance. Objectives: We present two potential practical applications of such techniques in quantifying TV physiological dynamics concealed in photoplethysmography (PPG) signals: early detection of blood-volume loss using a non-parametric approach known as variable frequency complex demodulation (VFCDM), and accurate detection of abrupt changes in respiratory rates using a parametric approach known as combined optimal parameter search and multiple mode particle filtering (COPS-MPF). Methods: The VFCDM technique has been tested using ear-PPG signals in two study models: mechanically ventilated patients undergoing surgery in operating room settings and spontaneously breathing conscious healthy subjects subjected to lower body negative pressure (LBNP) in laboratory settings. Extraction of respiratory rates has been tested using COPS-MPF technique in finger-PPG signals collected from healthy volunteers with abrupt changes in respiratory rate ranging from 0.1 to 0.4 Hz. Results: VFCDM method showed promise to detect the blood loss noninvasively in mechanical ventilated patients well before blood losses become apparent to the physician. In spontaneously breathing subjects during LBNP experiments, the early detection and quantification of blood loss was possibleat 40% of LBNP tolerance. COPS-MPF showed high accuracy in detecting the constant as well as sudden changes in respiratory rates as compared to other time-invariant methods. Conclusion: Integration of such robust algorithms into pulse oximeter device may have significant impact in real-time clinical monitoring and point-of-care healthcare settings.

Effect of periodic endoscopy for gastric cancer on early detection and improving survival

2001 ◽  
Vol 120 (5) ◽  
pp. A606-A606
Author(s):  
Y MORII ◽  
T YOSHIDA ◽  
T MATSUMATA ◽  
T ARITA ◽  
K SHIMODA ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Detection

1820: Complexed PSA for Early Detection of Prostate Cancer: A Multi Institutional Study

2004 ◽  
Vol 171 (4S) ◽  
pp. 481-481
Author(s):  
Ravery V. Vincent ◽  
Chautard D. Denis ◽  
Arnauld A. Villers ◽  
Laurent Boccon Gibbod
Keyword(s):  
Prostate Cancer ◽  
Early Detection
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