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在脑MRI成像中,EPI DWI和PROPELLER DWI之间的比较

Panayiotis Mavroidis¹, Eleonora Giankou², Maria Papaioannou³

¹Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC.

Current problems in diagnostic radiology

|September 21, 2023

概括

推进器扩散加权成像 (DWI) 提供优越的脑部MRI质量比传统的EPI DWI. 它减少了人造物质,并改善了病变检测,使其成为潜在的更好的脑成像替代品.

科学领域:

放射学放射学是一门学科.
神经成像是一种神经成像.
医学成像技术医学成像技术

背景情况:

声平面成像 (EPI) DWI是大脑MRI的标准,但由于信号与噪声比 (SNR) 低和文物而受到影响.
螺旋DWI是一种先进的技术,旨在克服EPI DWI的局限性.

研究的目的:

为了比较PROPELLER DWI与常规EPI DWI在脑MRI中的诊断性能.
为了评估两个DWI序列之间的图像质量,文物减少和病理描绘.

主要方法:

101名患者在1.5T扫描仪上接受了脑部MRI,获得了EPI DWI和PROPELLER DWI的序列.
放射科医生对图像质量,文物和病变明显性进行了定量 (相对对照) 和定性评估.

主要成果:

推进器DWI在整体图像质量方面显示了统计学上显著的改善 (P < 0.001).
推进器DWI显著降低了易感性和流动脉冲器件 (P < 0.001).
与EPI DWI相比,PROPELLER DWI提供了更好的病态划分,包括缺血性中风,瘤和.

结论:

由于提高图像质量和减少文物,PROPELLER DWI优于EPI DWI用于大脑MRI.
推进器DWI提供优越的病变划界和早期检测缺血性中风.
在常规的大脑MRI成像协议中,PROPELLER DWI显示有潜力取代EPI DWI.

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