John F. Bruzzi et al in RadioGraphics 2006;26:3-22 discuss the role of MDCT in hemoptysis.
"Hemoptysis is symptomatic of a potentially life-threatening condition and warrants urgent and comprehensive evaluation of the lung parenchyma, airways, and thoracic vasculature. Multi–detector row computed tomographic (CT) angiography is a very useful noninvasive imaging modality for initial assessment of hemoptysis.
The bronchial arteries are the source of bleeding in most cases of hemoptysis. Contributions from the non-bronchial systemic arterial system represent an important cause of recurrent hemoptysis following apparently successful bronchial artery embolization. Vascular anomalies such as pulmonary arteriovenous malformations and bronchial artery aneurysms are other important causes of hemoptysis.
Multi–detector row CT angiography permits noninvasive, rapid, and accurate assessment of the cause and consequences of hemorrhage into the airways and helps guide subsequent management. "
Role of Multi–Detector Row CT in Hemoptysis
4/ 5Oleh Habifa