In vivo assessment and visualization of intracranial arterial hemodynamics with flow-sensitized 4D MR imaging at 3T.
In vivo assessment and visualization of intracranial arterial hemodynamics with flow-sensitized 4D MR imaging at 3T.
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发表时间：
2007-03
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通讯作者：
S. G. Wetzel;Stephan Meckel;Alex Frydrychowicz;L. Bonati;E. Radue;Klaus Scheffler;Jürgen Hennig;Michael Markl
中科院分区：
文献类型：
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作者：
S. G. Wetzel;Stephan Meckel;Alex Frydrychowicz;L. Bonati;E. Radue;Klaus Scheffler;Jürgen Hennig;Michael Markl
总结：我们评估了3T的心电同步血流敏感型四维MR成像，结合先进的3D可视化技术，以确定其在活体评估局部颅内血流模式的可行性。在健康志愿者的大动脉中，血流的时间和空间演变被成功地可视化和揭示--例如，颈动脉虹吸管中的螺旋流模式。在狭窄闭塞的神经血管疾病患者中，可以很容易地看到停滞和逆行的血流模式。
SUMMARY We evaluated electrocardiogram-synchronized flow-sensitized 4-dimensional MR imaging at 3T in combination with advanced 3D visualization strategies to ascertain its feasibility for the assessment of local intracranial blood-flow patterns in vivo. In large arteries of healthy volunteers, the temporal and spatial evolution of blood flow was successfully visualized and revealed--for example, a helical flow pattern in the carotid siphon. In a patient with steno-occlusive neurovascular disease, stagnant and retrograde flow patterns were readily visible.