Manghat N E, Rachapalli V, Van Lingen R, Veitch A M, Roobottom C A, Morgan-Hughes G J
Department of Clinical Radiology, Plymouth NHS Trust, Derriford Hospital, Plymouth, UK.
Br J Radiol. 2008 Apr;81(964):275-90. doi: 10.1259/bjr/16301537.
Multi-detector row cardiac CT imaging demonstrates clinical usefulness in valvular heart disease, for which CT has not been traditionally used. Electrocardiographic (ECG)-gated CT coronary angiography also has an established clinical role with an increasingly solid evidence base, and the same data set in these patients also provides valuable information about chamber and valvular structure and function; this information should also be considered when interpreting cardiac CT and non-ECG gated thoracic imaging. Although true flow data cannot be achieved using CT, as with echocardiography and MRI, there are a number of imaging features that may be used when interpreting and inferring valve pathology. This article discusses the role of currently available imaging modalities and the rationale for cardiac CT, while focusing on the CT interpretation of valvular heart disease with respect to the relevant pathophysiology and management options that have importance to the radiologist. A suggested method of post-processing image review is provided with reference to a variety of normal and pathological pictorial illustrations.
多排探测器心脏CT成像在心脏瓣膜病中显示出临床应用价值，而传统上CT并未用于该领域。心电图（ECG）门控CT冠状动脉造影在临床上也发挥着既定作用，且证据基础日益坚实，这些患者的同一数据集还能提供有关心腔和瓣膜结构及功能的有价值信息；在解读心脏CT和非ECG门控胸部成像时，也应考虑这些信息。虽然与超声心动图和MRI一样，CT无法获得真正的血流数据，但在解读和推断瓣膜病变时，有一些成像特征可供使用。本文讨论了当前可用成像模式的作用以及心脏CT的原理，同时重点关注心脏瓣膜病的CT解读，涉及对放射科医生具有重要意义的相关病理生理学和管理选项。本文参照各种正常和病理图像示例，提供了一种图像后处理回顾的建议方法。
