Abstract #1219
BOLD MRI of lower extremity muscles : venous insufficiency is affecting BOLD signal
Hatice T SANAL 1 , Sertan GEZGIN 1 , and Cem TAYFUN 2
1
Radiology, Gulhane Military Medical Academy,
ANKARA, Kecioren, Turkey,
2
Radiology,
Gulhane Military Medical Academy (R), ANKARA, Kecioren,
Turkey
Several parameters on T2* time-intensity curves,
obtained from lower extremity muscles of patients having
arterial occlusive disease and healthy volunteers, have
been evaluated through BOLD MR imaging. Time to peak (TTP)
value longer than 40 sec suggest insufficient blood
sources to the muscle with a sensitivity and specificity
of % 83.3, % 92.3, respectively. Interestingly, in one
volunteer with normal artrerial system but with venous
insufficency, TTP was longer than expected. TTP value
with a threshold of 40 sec, can exclude stenosis with a
great sensitivity, unless venous insufficiency is
exluded.
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