2024年3月27日 · The trachea, known colloquially as the windpipe, connects the upper respiratory tract to the lungs via the tracheobronchial tree, enabling gas exchange. The trachea is a tube-shaped structure consisting of 15-20 D-shaped cartilage rings anterolaterally bridged by …

2012年11月23日 · The CT diagnosis of nonneoplastic tracheal disease is based on the appearance of the tracheal wall on inspiratory scans, changes in the tracheal wall with expiration, and the location and extent of tracheal abnormalities.

2012年11月23日 · CT shows diffuse nodular thickening of the trachea and main bronchi, often involving the subglottic trachea. Bronchial stenosis or occlusion may result in lobar or segmental atelectasis [ 8 ]. Nodular calcified regions within the trachea are common, as in tracheobronchopathia osteochondroplastica.

CT is the imaging modality of choice for imaging the trachea and bronchi for several reasons (2 - 4). CT can directly demonstrate the normal anatomy and appearance of the airways (Figure 1). It can specifically evaluate the adjacent mediastinal structures, mediastinal invasion by tumors or airway compression by adjacent mediastinal masses.

2016年10月10日 · On CT, the trachea usually is round or oval in shape, but it can appear horseshoe-shaped, triangular, or like an inverted pear in some normal patients. The tracheal wall is delineated by air in its lumen internally and by mediastinal fat externally, and is usually visible as a 1- to 2-mm soft tissue stripe.

2012年11月23日 · Tracheobronchomalacia is a condition characterized by excessive airway collapsibility due to increased flaccidity of the membranous portion of the central airways and weakness of the airway walls and supporting cartilage [1].

In patients with a saber-sheath trachea, CT demonstrated the abnormal configuration of the tracheal cartilages and abnormal collapse of the trachea on forced expiration. In patients with primary or secondary neoplasms involving the trachea, CT was most accurate in defining the intraluminal presence of tumor, the degree of airway compression ...

2016年8月6日 · CT is superior to chest radiography for detection of abnormalities of the trachea and main bronchi; sensitivities in detecting disease on chest radiographs and CT are 66% and 97%, respectively (5).

The tracheal wall has a thickness of 1 to 3 mm and is delineated by intraluminal gas and mediastinal fatty tissue, as determined on computed tomography (CT) scans. The normal transverse internal diameter of the trachea ranges between 15 and 25 mm in males and 10 to 21 mm in females, with a cross-sectional area of 250 to 350 mm 2 and a volume of ...

2016年9月20日 · Axial CECT shows an enlarged trachea and multiple tracheal diverticula. Paraseptal emphysema is also extensive. Lateral radiograph shows the typical radiographic features of a dilated trachea (28 mm) due to tracheobronchomegaly .