Relaxation Time Mapping in Skeletal Muscle During Reactive Hyperemia

Klarhöfer, M; Madörin, P; Scheffler, K

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Relaxation Time Mapping in Skeletal Muscle During Reactive Hyperemia

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https://cds.ismrm.org/ismrm-2007/files/1_program.pdf
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Klarhöfer, M., Madörin, P., & Scheffler, K. (2007). Relaxation Time Mapping in Skeletal Muscle During Reactive Hyperemia. Poster presented at 2007 Joint Annual Meeting ISMRM-ESMRMB, Berlin, Germany.

Cite as: https://hdl.handle.net/21.11116/0000-0004-04D2-A

Abstract

To obtain further information on the origins of measured signal changes during short term ischemia / reactive hyperemia, the pu
rpose of the present study was the dynamic measurement of the relaxation times T1, T2 and T2* during a cuff-compression paradigm on the human calf. No paradigm related changes in T1 were observed. T2 and T2* time courses showed the expected behavior. The calculated initial intensity I0 decreased during ischemia and did not show a large overshoot during reactive hyperemia. This excludes an increase of blood volume as a reason for longer transversal relaxation times observed during reactive hyperemia.