Multidetector computed tomography with virtual bronchoscopy in patients with bronchiectasis or osteochondroplastic tracheobronchopathy
https://doi.org/10.18093/0869-0189-2014-0-4-64-68
Abstract
Aim. The primary aim of this study was to evaluate a role of virtual bronchoscopy as a part of multidetector computed tomography (MDCT) for diag
nosis of bronchiectasis and its complications. The second aim was to determine a role of minimalintensity projection (minIP) and 3dimensional reconstructions for assessment of structure of trachea and bronchi.
Methods. MDCT was performed in 16sliced scanner Toshiba Aquilion 16 and 320sliced scanner Aquilion ONE. To evaluate central and distal air ways, threshold values of –400 HU to –600 HU and –750 HU were used, respectively. A software was used for virtual bronchoscopy with simulta neous postprocessing reformation of native images (minIP and maxIP images) and 3dimensional reconstructions. Results of virtual bronchoscopy were compared with fiberoptic bronchoscopy findings.
Results. Virtual bronchoscopy allowed investigation of inner surfaces of trachea, carina, main, segmental and subsegmental bronchi (with the small est diameter of 1–2 cm). Bronchiectasis was seen as deformities of bronchial lumen. Nontumoral bronchial stenosis did not impede visualization of more distal part of the bronchus during virtual bronchoscopy compared to fiberobronchoscopy. Visualization of bronchial inner surface depended on extent of bronchiectasis and could reach subsegmental bronchi of 5–6 generation.
Conclusion. MDCT virtual bronchoscopy technique based on combined evaluation of minIPimages, 3Dreformations and virtual bronchoscopy has been developed. This technique allows complete assessment of structure of trachea and bronchi in patients with bronchiectasis or osteochon droplastic tracheobronchopathy.
About the Authors
P. M. Kotlyarov
Federal Institution Russian Scientific Radiology Center, Healthcare Ministry of Russia
Russian Federation
Russian Federation
N. V. Nudnov
Federal Institution Russian Scientific Radiology Center, Healthcare Ministry of Russia
Russian Federation
Russian Federation
E. V. Egorova
Federal Institution Russian Scientific Radiology Center, Healthcare Ministry of Russia
Russian Federation
Russian Federation
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For citations:
Kotlyarov P.M., Nudnov N.V., Egorova E.V. Multidetector computed tomography with virtual bronchoscopy in patients with bronchiectasis or osteochondroplastic tracheobronchopathy. PULMONOLOGIYA. 2014;(4):64-68. (In Russ.) https://doi.org/10.18093/0869-0189-2014-0-4-64-68
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