Title :
Influence of adipose tissue on near infrared oxygenation monitoring in muscle
Author :
Matsushita, Kenichi ; Okada, Eiji
Author_Institution :
Dept. of Electr. Eng., Keio Univ., Japan
fDate :
29 Oct-1 Nov 1998
Abstract :
The influence of blood content on the sensitivity of a NIR O2 monitor is investigated. The simulation model is a semi-infinite medium consisting of skin, adipose and muscle layer. The thickness of adipose layer is varied from 0-10 mm and the absorption coefficient of the muscle layer is changed to realize various conditions of blood content and O2 saturation. The optical density (OD) and the partial optical pathlength in the muscle layer are predicted by Monte Carlo simulation. The changes of HbO2, deoxyHb, and total Hb are calculated from the predicted OD by reported algorithm for NIR O2 monitor. The calculated values are affected by the thickness of adipose tissue
Keywords :
Monte Carlo methods; bio-optics; infrared spectroscopy; muscle; oximetry; physiological models; 0 to 10 mm; Monte Carlo simulation; NIR oxygenation monitoring; O2 saturation; absorption coefficient; adipose tissue influence; blood content; human leg model; monitor sensitivity; optical density; oxyhaemoglobin; partial optical pathlength; semi-infinite medium; simulation model; skeletal muscle; tissue thickness; Absorption; Blood; Humans; Infrared surveillance; Leg; Monitoring; Muscles; Optical saturation; Optical sensors; Skin;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.746957
