BACKGROUND AND PURPOSE: To evaluate the potential of a new dynamic MRA sequence (DynAngio) based on arterial spin labeling for the assessment of intracranial collateral flow. METHODS: Twelve patients with unilateral internal carotid artery obstruction were investigated. Different patterns of collateral flow were compared between DynAngio, transcranial color-coded duplex ultrasound, and time-of-flight MRA. RESULTS: There was a good agreement between the methods, with sensitivities between 80% and 90%. Small collateral vessels were detected more frequently with DynAngio compared to time-of-flight MRA. CONCLUSIONS: DynAngio provides anatomic and similar to transcranial color-coded duplex ultrasound functional information on collateral flow for the assessment of intracranial hemodynamics.
BACKGROUND AND PURPOSE: To evaluate the potential of a new dynamic MRA sequence (DynAngio) based on arterial spin labeling for the assessment of intracranial collateral flow. METHODS: Twelve patients with unilateral internal carotid artery obstruction were investigated. Different patterns of collateral flow were compared between DynAngio, transcranial color-coded duplex ultrasound, and time-of-flight MRA. RESULTS: There was a good agreement between the methods, with sensitivities between 80% and 90%. Small collateral vessels were detected more frequently with DynAngio compared to time-of-flight MRA. CONCLUSIONS: DynAngio provides anatomic and similar to transcranial color-coded duplex ultrasound functional information on collateral flow for the assessment of intracranial hemodynamics.
Authors: Lirong Yan; Sumei Wang; Yan Zhuo; Ronald L Wolf; Michael F Stiefel; Jing An; Yongquan Ye; Qian Zhang; Elias R Melhem; Danny J J Wang Journal: Radiology Date: 2010-07 Impact factor: 11.105
Authors: Zixuan Lin; Yang Li; Pan Su; Deng Mao; Zhiliang Wei; Jay J Pillai; Abhay Moghekar; Matthias van Osch; Yulin Ge; Hanzhang Lu Journal: Magn Reson Med Date: 2018-03-01 Impact factor: 4.668
Authors: Matthew B Maas; Michael H Lev; Hakan Ay; Aneesh B Singhal; David M Greer; Wade S Smith; Gordon J Harris; Elkan Halpern; André Kemmling; Walter J Koroshetz; Karen L Furie Journal: Stroke Date: 2009-07-09 Impact factor: 7.914