Contrast-enhanced MR angiography at 3T in the evaluation of intracranial aneurysms: a comparison with time-of-flight MR angiography |
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| Authors: | Nael K Villablanca J P Saleh R Pope W Nael A Laub G Finn J P |
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| Affiliation: | Department of Radiological Sciences, David Geffen School of Medicine at University of California Los Angeles, 90095-7206, USA. nkambiz@mednet.ucla.edu |
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| Abstract: | The combination of 3T and parallel-acquisition techniques holds promise for improved performance of contrast-enhanced MR angiography (MRA), in terms of speed, spatial resolution, and coverage. We present a comparison of 2 MRA techniques, including time-of-flight (TOF) and contrast-enhanced MRA, for detection and evaluation of intracranial aneurysms. Our results show that contrast-enhanced MRA with highly accelerated parallel acquisition at 3T does not have the known drawbacks of TOF-MRA techniques, including prolonged acquisition time, spin saturation, and flow-related artifacts, with comparable aneurysm characterization. |
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