BACKGROUND: The purposes of this study were to assess the resting volume of the modified bronchial cuff of left-sided double-lumen bronchial tubes (DLT) and to determine the maximum range of the mainstem bronchial diameter indicated for DLT. METHODS: Left-sided DLTs (Broncho-Cath(R)) of 35-41 Fr (n = 5 each) were used for the study. The cuff was inflated with air in 0.5-ml increments to a volume of 5 ml and the corresponding cuff pressure was recorded. The smallest cuff volume, beyond which a 0.5 ml increase resulted in more than 10 mm Hg increase in cuff pressure, was considered to be the resting volume of that cuff. The resting volume was also calculated by differentiation on the fitted curve. The minimum required bronchial diameter was considered to be the reported OD of the bronchial tube and the maximum diameter was the measured OD of the bronchial cuff at a cuff pressure of 30 mmHg, which was measured with a precision caliper (0.1 mm intervals) at the midcuff level. RESULTS: The resting volume of the bronchial cuff, measured both traditionally and using the curve fitting analysis, were comparable. A DLT of any size > or = 35 Fr can be used for a bronchus with a diameter of 10.7-20.6 mm. CONCLUSIONS: There were extensive overlaps in the range of bronchial diameters indicated for each DLT size. Contrary to a common belief, the upper limits of the bronchial diameters indicated for all the DLTs > or = 35 Fr seemed to be the same regardless of the DLT size.
Bronchi*

No abstract available.
Bronchi*

No abstract available.
Bronchi* ; Rupture*

Multi-detector row CT (MDCT) provides faster speed, longer coverage in conjunction with thin slices, improved spatial resolution, and ability to produce high quality multiplanar and three-dimensional (3D) images. MDCT has revolutionized the non-invasive evaluation of the central airways. Simultaneous display of axial, multiplanar, and 3D images raises precision and accuracy of the radiologic diagnosis of central airway diseases. This article introduces central airway imaging with MDCT emphasizing on the emerging role of multiplanar and 3D reconstruction.
Bronchi ; Diagnosis

We report very rare case of concurrent bronchial atresia and bronchogenic cyst. Morphologic apical segment of right upper lobe directly stemmed from right main bronchus. Bronchogenic cyst was communicating with atretic segmental bronchus and both were filled with mucus. The etiology is not well known, however it is likely that a single insult arround the 5th~6th week causes both malformations.
Bronchi ; Bronchogenic Cyst* ; Mucus

Endobronchial lipomas are rare lesions that usually obstruct a major bronchus and cause irreversible pulmonary damage distally. Herein, a case of an endobronchial lipoma combined with broncholithiasis, found 3 months after first noticing symptoms including dry cough, and voice change, successfully removed by surgical resection is reported
Bronchi ; Cough ; Lipoma* ; Voice

No abstract available.
Bronchi* ; Bronchogenic Cyst* ; Trachea*

No abstract available.
Bronchi* ; Ethanol* ; Humans

We report a rare cause of lung cavities, occurring in a patient with intrapulmonary cystic teratoma. Computed tomography (CT) provided us more detailed informations about the tumor characteristics containing fat and calcification, which could not be distinguished on the plain radiographs. In addition, CTscans clearly demonstrated the dilated anterior segmental bronchus of the left upper lobe entering the posterior aspect of the cavity.
Bronchi ; Humans ; Lung* ; Teratoma*

A optical endoscope has disadvantages; giving pain and not applying to a postoperative patient. If it substitutes for a virtual endoscope, noninvasive observation can be gained. This paper describes a developed viewer, using Visual C++ 6.0 and Openlnventor2.5.2 (object-oriented 3D toolkit) library, for the manipulation of 3D anatomy object model. It is named Anatomy Viewer. The viewer is implemented under the PC environment. It can rotate, zoom in and out, and fly through anatomy models on 3D space and translate into a interested area, and then save as a TGA image file like a real endoscope. Also, as it is improved in the network, we exchange data and discuss with someone who is in the other place. This viewer is very useful to understand the anatomy structure, to diagnose, and to make a surgical plan in preoperative step. We verified its usefulness by observing a 3D bronchus model that is reconstructed with CT image slices.
Bronchi ; Diptera ; Endoscopes* ; Humans