医学
慢性阻塞性肺病
肺活量测定
气道
计算机断层摄影术
肺病
定量计算机断层扫描
放射科
肺
断层摄影术
空气滞留
气道阻塞
心脏病学
内科学
哮喘
外科
骨质疏松症
骨密度
作者
Lalita Fernandes,Yasmin Fernandes,Anthony Menezes Mesquita
出处
期刊:Lung India
[Medknow Publications]
日期:2016-01-01
卷期号:33 (6): 646-646
被引量:19
标识
DOI:10.4103/0970-2113.192880
摘要
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease having small airway inflammation, emphysema, and pulmonary hypertension. It is now clear that spirometry alone cannot differentiate each component. Quantitative computed tomography (QCT) is increasingly used to quantify the amount of emphysema and small airway involvement in COPD. Inspiratory CT guides in assessing emphysema while expiratory CT identifies areas of air trapping which is a surrogate of small airway inflammation. By constructing a three-dimensional model of airways, we can also measure the airway wall thickness of segmental and subsegmental airways. The aim of this review is to present the current knowledge and methodologies in QCT of the lung that aid in identifying discrete COPD phenotypes.
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