Development of a clinically practical whole-brain intracranial vessel wall MRI technique at 3 Tesla
نویسندگان
چکیده
Background T1-weighted variable-flip-angle 3D TSE has emerged as a promising intracranial vessel wall imaging technique. To increase spatial coverage and cerebrospinal fluid (CSF) attenuation, a whole-brain 0.5-mm-reoslution protocol based on an inversion-prepared 3D TSE sequence has recently been proposed at 3T. However, its 11-12-min scan time renders it clinically impractical. This work aimed to develop an expedited protocol and validate it on patients.
منابع مشابه
Multimodal 3 Tesla MRI confirms intact arterial wall in acute stroke patients after stent-retriever thrombectomy.
BACKGROUND AND PURPOSE The aim of this prospective study was to assess vascular integrity after stent-retriever thrombectomy. METHODS Dissection, contrast medium extravasation, and vasospasm were evaluated in 23 patients after thrombectomy with biplane or 3D-digital subtraction angiography and 3-Tesla vessel wall MRI. RESULTS Vasospasm was detected angiographically in 10 patients, necessita...
متن کاملIntracranial vessel wall MRI: a review of current indications and future applications
Background: Intracranial vessel wall MRI (IVWM) is a new diagnostic imaging approach with the goal of evaluating intracranial vascular pathology by directly visualizing arterial vessel wall abnormalities with MR sequences, preferably at 3 Tesla field strength, that suppress blood and have excellent spatial resolution. Body: The differentiation of intracranial vascular pathology has historically...
متن کاملIntracranial arterial wall imaging using high-resolution 3-tesla contrast-enhanced MRI.
BACKGROUND Conventional arterial imaging focuses on the vessel lumen but lacks specificity because different pathologies produce similar luminal defects. Wall imaging can characterize extracranial arterial pathology, but imaging intracranial walls has been limited by resolution and signal constraints. Higher-field scanners may improve visualization of these smaller vessels. METHODS Three-tesl...
متن کاملQualitative Evaluation of a High-Resolution 3D Multi-Sequence Intracranial Vessel Wall Protocol at 3 Tesla MRI
BACKGROUND AND PURPOSE Intracranial vessel wall imaging using MRI has great potential as a clinical method for assessing intracranial atherosclerosis. The purpose of the current study was to compare three 3T MRI vessel wall sequences with different contrast weightings (T1w, PD, T2w) and dedicated sagittal orientation perpendicular to the middle cerebral artery, to the reconstructed sagittal ima...
متن کاملHigh-Resolution Magnetic Resonance Imaging of Intracranial Vertebral Artery Dissecting Aneurysm for Planning of Endovascular Treatment
The equipment and techniques associated with magnetic resonance imaging (MRI) have rapidly evolved. The development of 3.0 Tesla MRI has enabled high-resolution imaging of the intracranial vessel wall. High-resolution MRI (HRMRI) can yield excellent visualization of both the arterial wall and lumen, thus facilitating the detection of the primary and secondary features of intracranial arterial d...
متن کامل