intramuscular fat area to skeletal muscle area ratio 2012-10-12T06:44:37Z A calculated value in which the area (i.e., the extent of the two-dimensional region) occupied by intramuscular fat in a specified sample of skeletal muscle is divided by the total area of that sample of skeletal muscle and presented as a ratio, fraction or quotient, thus normalizing it to muscle area. CMO:0001160 JSmith clinical_measurement_ontology intramuscular adipose area to muscle area ratio intramuscular adipose area to skeletal muscle area ratio calculated intramuscular fat area