Dual-Energy Lung Perfusion Computed Tomography: A Novel Pulmonary Functional Imaging Method

被引：24
|
作者：
Thieme, Sven F. [1 ]
Johnson, Thorsten R. C. [1 ]
Reiser, Maximilian F. [1 ]
Nikolaou, Konstantin [1 ]
机构：
[1] Univ Munich, Klinikum Grosshadern, Dept Clin Radiol, D-8000 Munich, Germany
来源：
SEMINARS IN ULTRASOUND CT AND MRI | 2010年 / 31卷 / 04期
关键词：
MAGNETIC-RESONANCE ANGIOGRAPHY; BLOOD-FLOW; SOURCE CT; PERFORMANCE EVALUATION; ARTERIAL-HYPERTENSION; THORACIC APPLICATIONS; EMBOLISM DETECTION; DYNAMIC PERFUSION; MR-ANGIOGRAPHY; HELICAL CT;
D O I：
10.1053/j.sult.2010.05.001
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：
Dual-energy computed tomography (DECT) can be used for visualization of pulmonary microvascular contrast material distribution, representing regional perfusion. It is performed as DECT angiography and allows for the reconstruction of morphologic images as well as of "perfusion maps." The authors of previous studies have shown its potential to reliably depict perfusion defects, mainly in the context of pulmonary embolism. Also in the diagnostic work-up of other pulmonary diseases, there might be additional functional information provided by dual-energy acquisition techniques. This review focuses on the physical and technical background and the potential clinical value of pulmonary DECT. Technical improvements of a second-generation dual-source CT system are elucidated. Semin Ultrasound CT MRI 31:301-308 (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：301 / 308
页数：8
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