{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,13]],"date-time":"2026-01-13T09:56:16Z","timestamp":1768298176072,"version":"3.49.0"},"reference-count":18,"publisher":"Scientific Scholar","content-domain":{"domain":["clinicalimagingscience.org"],"crossmark-restriction":true},"short-container-title":["JCIS"],"abstract":"<jats:p>Tracheal bronchus (TB) is a very rare condition, which is often associated with some other pathologies. This study was designed to characterize the morphology of tracheal bronchus and associated pathologies in Vietnamese individuals using multidetector-row computed tomography (MDCT). From August 2016 to February 2021, 16, 64-, and 128-detector-row computed tomography scanners were used to perform chest scans of 3663 patients, of whom 32 had tracheal bronchus and associated pathologies. The prevalence of tracheal bronchus was 0.9%, of which 0.6% were male and 0.3% were female. We found that one patient had bilateral tracheal bronchus (3.1%) and 31 patients (96.9%) had right-sided tracheal bronchus. Most patients (75.1%) had type II tracheal bronchus, whereas 15.6% and 6.2% had type III and type I tracheal bronchus, respectively. The average distance from the tracheal bronchus to the carina was 6.6 \u00b1 6.4 mm. The average diameter of the tracheal bronchus was 4.4 \u00b1 2.2 mm; the group with 2\u20134-mm tracheal bronchus accounted for the highest proportion (46.9%). Associated pathologies included congenital heart diseases (i.e., valvular heart disease, tetralogy of Fallot, cyanotic congenital heart disease-APSO, and aortic coarctation) (43.7%), stenosis of the bilateral pulmonary arteries (15.6%), absent left pulmonary artery (6.2%), stenosis of the right pulmonary artery (3.1%), anomalous pulmonary venous connection (3.1%), stenosis of the trachea (3.1%), stenosis of the left main bronchus (3.1%), bronchogenic cyst (3.1%), and bronchial atresia (3.1%), and the remaining 12.5% had no abnormalities. tracheal bronchus is a very rare abnormality among Vietnamese and is often accompanied by other pathologies. MDCT with a high spatial resolution and a good tissue contrast, along with contrast agent and appropriate scanning protocols, is efficient in detecting tracheal bronchus and associated pathologies.<\/jats:p>","DOI":"10.25259\/jcis_40_2022","type":"journal-article","created":{"date-parts":[[2022,9,28]],"date-time":"2022-09-28T10:50:12Z","timestamp":1664362212000},"page":"56","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Tracheal bronchus and associated pathologies detected by multidetector-row computed tomography in the Vietnamese population"],"prefix":"10.25259","volume":"12","author":[{"given":"Khanh","family":"Lam","sequence":"first","affiliation":[{"name":"Department of Diagnostic Imaging, Hospital 108, Hanoi, Vietnam"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luong Van","family":"Hoang","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Imaging, National Lung Hospital, Hanoi, Vietnam"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lam Viet","family":"Anh","sequence":"additional","affiliation":[{"name":"College of Health Sciences, Vin University, Hanoi, Vietnam,"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10894","published-online":{"date-parts":[[2022,9,28]]},"reference":[{"key":"10.25259\/JCIS_40_2022\/ref-1","doi-asserted-by":"publisher","first-page":"240","DOI":"10.1067\/mhn.2002.122703","article-title":"Tracheal bronchus: Classification, endoscopic analysis, and airway management","volume":"126","author":"Doolittle","year":"2002","journal-title":"Otolaryngol Head Neck Surg"},{"key":"10.25259\/JCIS_40_2022\/ref-2","doi-asserted-by":"publisher","first-page":"105","DOI":"10.1148\/radiographics.21.1.g01ja06105","article-title":"Congenital bronchial abnormalities 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