Comparison of Pointwise Encoding Time Reduction with Radial Acquisition (PETRA) MR-Angiography with conventional MR-Angiography-Sequences for Follow-Up of intracranial Aneurysms in a real-world cohort.
BACKGROUND AND PURPOSE MRI follow-up of treated cerebral aneurysms is essential to detect remnants or reperfusion but contrast-enhanced MR-angiography (ceMRA) and TOF-MRA can be impaired by implant-related artifacts. Pointwise Encoding Time Reduction with Radial Acquisition MRA (PETRA) is a novel, non-contrast MRA tech...