OBJECTIVE: To determine if there is a relationship between tracheal width (TW) and left bronchial width (LBW). DESIGN: Three-dimensional chest computed tomography (CT) scans were used to reconstruct major airways for measurement of TW and LBW. SETTING: Stanford University Medical Center, Stanford, California. PARTICIPANTS: Thirty-one adult patients undergoing chest CT scans. INTERVENTIONS: Cursors were used to directly measure internal diameter from coronal images of the trachea at midclavicular level and the left main bronchus at a level 1 cm below the carina. MEASUREMENTS AND MAIN RESULTS: TW and LBW, but not the LBW-to-TW ratio, were significantly larger in men than in women. The LBW-to-TW ratio was consistent for men (0.75 +/- 0.09) and women (0.77 +/- 0.10). CONCLUSIONS: LBW is proportional to TW. If LBW cannot be measured directly but TW can, the ratio of LBW to TW can be used to predict LBW. An appropriate-sized left double-lumen tube can then be selected for the patient. Copyright 2001 by W.B. Saunders Company
OBJECTIVE: To determine if there is a relationship between tracheal width (TW) and left bronchial width (LBW). DESIGN: Three-dimensional chest computed tomography (CT) scans were used to reconstruct major airways for measurement of TW and LBW. SETTING: Stanford University Medical Center, Stanford, California. PARTICIPANTS: Thirty-one adult patients undergoing chest CT scans. INTERVENTIONS: Cursors were used to directly measure internal diameter from coronal images of the trachea at midclavicular level and the left main bronchus at a level 1 cm below the carina. MEASUREMENTS AND MAIN RESULTS: TW and LBW, but not the LBW-to-TW ratio, were significantly larger in men than in women. The LBW-to-TW ratio was consistent for men (0.75 +/- 0.09) and women (0.77 +/- 0.10). CONCLUSIONS: LBW is proportional to TW. If LBW cannot be measured directly but TW can, the ratio of LBW to TW can be used to predict LBW. An appropriate-sized left double-lumen tube can then be selected for the patient. Copyright 2001 by W.B. Saunders Company
Authors: J R Ederle; C P Heussel; J Hast; B Fischer; E J R Van Beek; S Ley; M Thelen; H U Kauczor Journal: Eur Radiol Date: 2003-06-14 Impact factor: 5.315
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