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Biomedical subjects

J E Perrin

Publications and source records attributed to J E Perrin.

6 recordsLinked to original sources
PubMed1980

[Frequency response of arterial bioelastomers].

This work aims at estimating the quality of arterial bioelasticity. The non invasive employed method consists to obtain phase spectrum of blood flow velocity and arterial pressure. An original transducer allows us to obtain these signals at the same point of a superficial artery then to record them on magnetic tape. A mathematical model binds the phase spectrum and rheological parameters.

Arteries↗
PubMed1979

[Methods of tissue characterization with ultrasonic spectroscopy, analysis of the results obtained, prospects for clinical application in a short time].

So far, to account for ultrasonic attenuation in soft tissues molecular scale relaxation theory is retained. In addition to these mechanisms, the authors have obtained experimental evidence proving the role also plaid by cellular scale resonance mechanisms. Moreover, in addition to incoherent diffusion, it has been found that some tissues exhibit some coherent diffusion. All these experimental findings allows us to establish the feasability of non invasive ultrasonic biopsies.

Animals↗