The role of time-resolved 3D contrast-enhanced MR angiography in the assessment and grading of cerebral arteriovenous malformations

被引：21
作者：
Oleaga, L. [1 ]
Dalal, S. S. [2 ]
Weigele, J. B. [2 ]
Hurst, R. W. [2 ]
Lee, J. [1 ,3 ]
Voorhees, A. [4 ]
Melhem, E. R. [2 ]
机构：
[1] Hosp Clin Barcelona, Dept Radiol, E-08036 Barcelona, Spain
[2] Hosp Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
[3] Hosp Univ Penn, Dept Neurosurg, Philadelphia, PA 19104 USA
[4] Siemens Med Solut USA Inc, Malvern, PA USA
来源：
EUROPEAN JOURNAL OF RADIOLOGY | 2010年 / 74卷 / 03期
关键词：
Arteriovenous malformation; Magnetic resonance angiography; Gadolinium enhanced magnetic resonance angiography; BRAIN AVMS; SYSTEM; RADIOSURGERY;
D O I：
10.1016/j.ejrad.2009.04.063
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
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. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码：E118 / E122
页数：5
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