Dual-Energy CT of the Brain and Intracranial Vessels

被引：54

作者：

Postma, Alida A. ^{[1
]}

Hofman, Paul A. M. ^{[1
]}

Stadler, Annika A. R. ^{[1
]}

van Oostenbrugge, Robert J. ^{[2
]}

Tijssen, Maud P. M. ^{[1
]}

Wildberger, Joachim E. ^{[1
]}

机构：

[1] Maastricht Univ, Med Ctr, Dept Radiol, NL-6202 AZ Maastricht, Netherlands

[2] Maastricht Univ, Med Ctr, Dept Neurol, NL-6202 AZ Maastricht, Netherlands

来源：

AMERICAN JOURNAL OF ROENTGENOLOGY | 2012年 / 199卷 / 05期

关键词：

brain hemorrhage; dual-energy CT (DECT); dual-energy CT angiography; material differentiation; DIGITAL-SUBTRACTION-ANGIOGRAPHY; VIRTUAL NONENHANCED IMAGES; COMPUTED-TOMOGRAPHY; INTRAARTERIAL THROMBOLYSIS; INTRACEREBRAL HEMORRHAGE; CLINICAL-APPLICATIONS; CONTRAST ENHANCEMENT; INITIAL-EXPERIENCE; IODINATED CONTRAST; BONE SUBTRACTION;

D O I：

10.2214/AJR.12.9115

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

OBJECTIVE. The purpose of this review is to summarize the principles and applications of dual-energy CT in evaluation of the brain and the intracranial blood vessels. CONCLUSION. One major advantage of dual-energy CT is the capability of material differentiation. In general, this property can be applied to bone removal in CT angiography for easier and faster postprocessing. In neuroradiology, material decomposition allows detection of hemorrhage on contrast-enhanced CT scans and facilitates the search for the underlying pathologic mechanism of hematomas. The combination of low radiation dose and advantageous spectral information (blood vs contrast) from these datasets justifies broad clinical implementation of dual-energy CT in neuroradiology.

引用

页码：S26 / S33

页数：8

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