<P> MRI is more sensitive and specific for assessing bone bone composition . MRI enables assessment of the average molecular composition of soft tissues , and thus provides information regarding the relative fat content of marrow . In adult humans , `` yellow '' fatty marrow is the dominant tissue in bones , particularly in the ( peripheral ) appendicular skeleton . Because fat molecules have a high T1 - relaxivity , T1 - weighted imaging sequences show `` yellow '' fatty marrow as bright ( hyperintense ) . Furthermore , normal fatty marrow loses signal on fat - saturation sequences , in a similar pattern to subcutaneous fat . </P>
<P> MRI is more sensitive and specific for assessing bone bone composition . MRI enables assessment of the average molecular composition of soft tissues , and thus provides information regarding the relative fat content of marrow . In adult humans , `` yellow '' fatty marrow is the dominant tissue in bones , particularly in the ( peripheral ) appendicular skeleton . Because fat molecules have a high T1 - relaxivity , T1 - weighted imaging sequences show `` yellow '' fatty marrow as bright ( hyperintense ) . Furthermore , normal fatty marrow loses signal on fat - saturation sequences , in a similar pattern to subcutaneous fat . </P>
where is yellow bone marrow located in adults
where is yellow bone marrow located in adults
the ( peripheral ) appendicular skeleton
the ( peripheral ) appendicular skeleton