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© The Author(s) 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Objectives

General thoracic surgeons must be familiar with anatomical variation in the pulmonary vessels and bronchi. Here, we analyzed the bronchovascular pattern of the right middle lobe (RML) and right lower lobe (RLL) of the lung using three-dimensional CT angiography and bronchography (3DCTAB).

Methods

We reviewed the anatomical patterns of the pulmonary vessels and bronchi in 270 patients using 3DCTAB images.

Results

The branching patterns of vessels and bronchi of RML and S6 were classified according to the number of stems. The single-stem type was the most common, except in the artery of the RML, for which the two-stem type was the most common. The artery and bronchus of S*, which is an independent segment between S6 and S10, were observed in 20.4% of cases. The branching pattern of A7 (B7) was classified into four types. The A7a (B7a) type was observed in 74.8% of cases, and was the most common. The branching pattern of the artery and bronchus of S8−10 was classified into five and three types, respectively. The A8 and A9 + A10 type, and the B8 and B9 + B10 type, were observed in 68.1 and 80.4% of cases, respectively, and were the most common types. The branching pattern of V8−10 was more complex than that of A8−10 and B8−10.

Conclusion

We explored the bronchovascular patterns of RML and RLL and their frequencies using a large number of 3DCTAB images. Our data can be used by thoracic surgeons to perform safe and precise lung resections.

Details

Title
Analysis of variation in bronchovascular pattern of the right middle and lower lobes of the lung using three-dimensional CT angiography and bronchography
Author
Nagashima, Toshiteru 1 ; Shimizu, Kimihiro 1   VIAFID ORCID Logo  ; Ohtaki, Yoichi 1 ; Obayashi, Kai 1 ; Nakazawa, Seshiru 1 ; Mogi, Akira 1 ; Kuwano, Hiroyuki 1 

 Gunma University Hospital, Division of General Thoracic Surgery, Integrative Center of General Surgery, Maebashi, Japan (GRID:grid.411887.3) (ISNI:0000 0004 0595 7039) 
Pages
343-349
Publication year
2017
Publication date
Jun 2017
Publisher
Springer Nature B.V.
ISSN
18636705
e-ISSN
18636713
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2918739061
Copyright
© The Author(s) 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.