Improved image quality and detection of acute cerebral infarction with PROPELLER diffusion-weighted MR imaging
Improved image quality and detection of acute cerebral infarction with PROPELLER diffusion-weighted MR imaging
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DOI：
10.1148/radiol.2252011479
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发表时间：
2002-11-01
期刊：
影响因子：
19.7
通讯作者：
Heiserman, JE
中科院分区：
文献类型：
--
作者：
Forbes, KP;Pipe, JG;Heiserman, JE
PURPOSE: To compare periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) multishot fast spin-echo diffusion-weighted magnetic resonance (MR) imaging with single-shot echo-planar diffusion-weighted MR imaging for image quality and visualization of acute cerebral infarction.MATERIALS AND METHODS: Seventy subjects (35 men, 35 women; mean age, 55 years 24 [SD]) who were suspected of having acute cerebral infarction (symptom duration, 2.8 days :2.7) underwent PROPELLER and echo-planar MR imaging (b = 1,000 sec/mm(2)). Two neuroradiologists compared unlabeled images for presence of artifacts, visualization of infarction, and their preference of images. Interobserver agreement and image comparison were assessed by using the K statistic and the x(2) test, respectively.RESULTS: PROPELLER MR imaging reduced susceptibility artifacts (n = 70 subjects), limited visualization of temporal (echo-planar, n = 64; PROPELLER, n = 0; P < which 2.01, X test), frontal (echo-planar, n = 58; PROPELLER, n = 1; P
