Motion-insensitive carotid intraplaque hemorrhage imaging using 3D inversion recovery preparation stack of stars (IR-prep SOS) technique

详细信息    查看全文

• 作者：Seong-Eun Kim ; John A. Roberts ; Laura B. Eisenmenger ; Booth W. Aldred ; Osama Jamil ; Bradley D. Bolster ; Xiaoming Bi ; Dennis L. Parker ; Gerald S. Treiman and J. Scott McNally
• 刊名：Journal of Magnetic Resonance Imaging
• 出版年：2017
• 出版时间：February, 2017
• 年：2017
• 卷：45
• 期：2
• 页码：410-417
• 全文大小：352K
• ISSN：1522-2586

文摘

Carotid artery imaging is important in the clinical management of patients at risk for stroke. Carotid intraplaque hemorrhage (IPH) presents an important diagnostic challenge. 3D magnetization prepared rapid acquisition gradient echo (MPRAGE) has been shown to accurately image carotid IPH; however, this sequence can be limited due to motion- and flow-related artifact. The purpose of this work was to develop and evaluate an improved 3D carotid MPRAGE sequence for IPH detection. We hypothesized that a radial-based k-space trajectory sequence such as “Stack of Stars” (SOS) incorporated with inversion recovery preparation would offer reduced motion sensitivity and more robust flow suppression by oversampling of central k-space.