The role of time-resolved 3D contrast-enhanced MR angiography in the assessment and grading of cerebral arteriovenous malformations
| Autor: | Shamsher S. Dalal, Robert W. Hurst, A. Voorhees, John B. Weigele, Laura Oleaga, Elias R. Melhem, John Y K Lee |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Adult
Gadolinium DTPA Intracranial Arteriovenous Malformations Male medicine.medical_specialty Image quality Contrast Media computer.software_genre Sensitivity and Specificity Magnetic resonance angiography Young Adult Imaging Three-Dimensional Voxel Image Interpretation Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging Grading (tumors) Aged Aged 80 and over medicine.diagnostic_test business.industry Mr angiography Reproducibility of Results Arteriovenous malformation General Medicine Digital subtraction angiography Middle Aged Image Enhancement medicine.disease Female Radiology Nuclear medicine business computer Algorithms Magnetic Resonance Angiography |
| Zdroj: | Europe PubMed Central |
| ISSN: | 0720-048X |
| Popis: | Purpose To assess the role of three-dimensional (3D) contrast-enhanced, time-resolved MR angiography (CE TR MRA) in patients with intracranial arteriovenous malformations (AVMs). Methods We studied 12 patient with intracranial AVMs on a 3.0 T MR imaging system (Magentom TIM Trio, Siemens Medical Solutions, Erlangen, Germany) using 3D CE TR MRA with autocalibrating partially parallel acquisitions and echo sharing schemes, which provided temporal resolution of 0.58 or 1.7 s and near isotropic voxels. We qualitatively assessed image quality of the 3D CE TR MRA and compared the grading of the AVMs based on modified Spetzler–Martin system for 3D CE TR MRA and catheter digital subtraction angiography (DSA). Results CE TR MRA provided good quality images in the 3 standard orthogonal planes, and good arterial-venous separation in all cases. All AVMs were correctly graded by CE TR MRA when compared with DSA. 3D CE TR MRA provides a non-invasive alternative to DSA for the evaluation of cerebral AVMs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect