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 3.0T 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 1.7s 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. Copyright (c) 2009 Elsevier Ireland Ltd. All rights reserved.
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 3.0T 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 1.7s 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. Copyright (c) 2009 Elsevier Ireland Ltd. All rights reserved.
Authors: Tilman Schubert; Yijing Wu; Kevin M Johnson; Oliver Wieben; Jane Maksimovic; Charles Mistretta; Patrick Turski Journal: Invest Radiol Date: 2016-11 Impact factor: 6.016
Authors: W Chang; Y Wu; K Johnson; M Loecher; O Wieben; M Edjlali; C Oppenheim; P Roca; J Hald; B Aagaard-Kienitz; D Niemann; C Mistretta; P Turski Journal: AJNR Am J Neuroradiol Date: 2015-02-19 Impact factor: 3.825