Abstract #4693
Optimizing MR acquisition time for dynamic pituitary gland evaluation utilizing GRASP
Camilla Rossi Espagnet 1 , Lev Bangiyev 1 , Kai Tobias Block 2 , Robert Grimm 3 , Fernando Boada 2 , Timothy Shepherd 1 , David Chen 2 , James Babb 2 , and Girish Fatterpekar 1
1
Neuroradiology, NYULMC, New York, NY, United
States,
2
Radiology,
NYULMC, New York, NY, United States,
3
Pattern
Recognition Lab, FAU, Erlangen, Nuremberg, Germany
Purpose of this study is to evaluate signal-time curves
(STC) utilizing GRASP to optimize acquisition time (TA)
for dynamic pituitary evaluation. STCs generated from
normal appearing anterior pituitary gland and
microadenomas in 20 patients evaluated peak enhancement
at 60 seconds and then every 10 seconds. There was no
significant change in peak enhancement of anterior
pituitary gland 90 seconds after administration of
contrast. Also, a significant difference in peak
enhancement between microadenoma and anterior pituitary
gland could be consistently measured during this time.
Our findings demonstrate that 90 second TA is sufficient
to provide optimal dynamic evaluation of pituitary
gland.
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