Exercise MR of Skeletal Muscles, the Heart, and the Brain

Abstract

INTRAVOXEL INCOHERENT MOTION (IVIM) MRI-BASED PERFUSION FRACTION AND WATER DIFFUSION MAPS FROM THE UPPER LEG OF A YOUNG (27 YEARS) AND AN OLD (90 YEAR) SUBJECT AT REST AND AFTER DYNAMIC KNEE EXTENSION EXERCISE AT 3.25-MINUTE INTERVALS. REGIONS OF INTEREST FOR THE ACTIVE RECTUS FEMORIS MUSCLE (RED) AND FOR A PART OF THE INACTIVE ADDUCTOR MAGNUS MUSCLE (WHITE) ARE INDICATED. NOTE THE PRONOUNCED DIFFERENCE IN PERFUSION FRACTION BETWEEN THE YOUNG AND OLD SUBJECTS AFTER EXERCISE. REPRODUCED FROM ADELNIA ET AL. WITH PERMISSION FROM JOHN WILEY & SONS, INC. BY HOOIJMANS ET AL. (535-560)