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首页> 外文期刊>Radiology >Intracranial aneurysms: diagnostic accuracy of MR angiography with evaluation of maximum intensity projection and source images.
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Intracranial aneurysms: diagnostic accuracy of MR angiography with evaluation of maximum intensity projection and source images.

机译：颅内动脉瘤：MR血管造影的诊断准确性，可评估最大强度投影和原始图像。

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摘要

PURPOSE: To determine whether evaluation of source images from magnetic resonance (MR) angiography in addition to maximum-intensity projection (MIP) images improves the detection of aneurysms. MATERIALS AND METHODS: Conventional and MR angiography were performed in 193 patients with various intracranial vascular lesions or normal findings. Images were evaluated in a blinded manner. Two readings were performed 6 weeks apart by evaluating MIP images with and without source images. Results were evaluated with receiver operating characteristic analysis. RESULTS: Sensitivity for the detection of aneurysms increased slightly when source images were included. The detection rate of internal carotid artery aneurysms was most improved with the addition of source images. No statistically significant differences in performance were found between the readings with MIP images alone and with source images. CONCLUSION: Sensitivity may improve with combined reading of nonselective MIP and source images.
机译：目的：确定除最大强度投影（MIP）图像外，评估来自磁共振（MR）血管造影的源图像是否可以改善对动脉瘤的检测。材料与方法：对193例颅内各种血管病变或发现正常的患者进行了常规和MR血管造影。以盲法评估图像。通过评估带有和不带有源图像的MIP图像，相隔6周进行两次读数。通过接收器工作特性分析评估结果。结果：当包括源图像时，对动脉瘤检测的敏感性略有增加。添加源图像可以最大程度地提高颈内动脉瘤的检出率。在单独使用MIP图像的读数与使用源图像的读数之间，没有发现性能上的统计学显着差异。结论：结合阅读非选择性MIP和源图像可以提高灵敏度。

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