Abstract #0245
Deep Vein Thrombosis (DVT): comparison of MR Direct Thrombus Imaging and Non-Contrast-Enhanced MRA
Andrew Nicholas Priest 1 , Sally Hunter 1 , Ilse Joubert 1 , Sarah Hilborne 1 , David J Bowden 1 , Martin John Graves 1 , Trevor Baglin 2 , and David John Lomas 1
1
Radiology, Addenbrooke's Hospital and
University of Cambridge, Cambridge, United Kingdom,
2
Haematology,
Addenbrooke's Hospital, Cambridge, United Kingdom
Both non-contrast-enhanced MR venography (NCE-MRV) and
MR direct thrombus imaging (MR-DTI) can image deep vein
thrombosis (DVT). The MR-DTI signal varies with thrombus
age. We measured the size and location of a first DVT
assessed by NCE-MRV and MR-DTI acquired at three
different time-points. The two methods always agreed at
the first time-point, within a week of diagnosis, but at
later time-points (three and six months) most of the
thrombus was not seen on MR-DTI, with only very small
bright-signal regions. This may be important for the
clinically-important question of distinguishing between
acute recurrent thrombus and a residual previous DVT.
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