Date of Award

Spring 1977

Document Type

Dissertation - Restricted

Degree Name

Doctor of Philosophy (PhD)


Biomedical Engineering

First Advisor

Sances, Anthony

Second Advisor

Linehan, John H.

Third Advisor

Sedivy, Jan K.


Primary flow detection devices usually measure parameters related to velocity or mass flow rate. A Nuclear Magnetic Resonance (NMR) flowmeter has been developed to detect limb blood flow noninvasively. The NMR detector generates signals related to the volume and nuclear magnetization level of the flow stream. With an applied tag the same flowmeter measures velocity of flow. Both the velocity and volume flow rates of the relatively steady venous flow can be determined by the tag-detect technique. An alternative method referred to as self-tag is used to measure pulsatile arterial flow. A study of peripheral vascular flow in limbs is presented. The arm represents a logical area for study. It has relatively well defined major flow channels and can be placed within a detector structure of modest size. Limb flow can be regulated by cuff occlusion and compared with other noninvasive measurements such as doppler ultrasound. Chapter organization in this paper is designed to reflect the sequential nature of experimental development followed in the conduction of this research...



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