Accessory Cardiac Bronchus: Proposed Imaging Classification on Multidetector CT
- Alternative Title
- 부심장기관지: 다중검출기 전산화단층촬영에서의 영상의학적 분류 제안
- Abstract
- Purpose
To propose the classification of accessory cardiac bronchus (ACB) based on imaging using multidetector computed tomography (MDCT), and evaluate follow-up changes of ACB.
Materials and Methods
This study included 58 patients diagnosed as ACB since 9 years, using MDCT. We analyzed the types, division locations and division directions of ACB, and also evaluated changes on follow-up.
Results
We identified two main types of ACB: blind-end (51.7%) and lobule (48.3%). The blind-end ACB was further classified into three subtypes: blunt (70%), pointy (23.3%) and saccular (6.7%). The lobule ACB was also further classified into three subtypes: complete (46.4%), incomplete (28.6%) and rudimentary (25%). Division location to the upper half bronchus intermedius (79.3%) and medial direction (60.3%) were the most common in all patients. The difference in division direction was statistically significant between the blind-end and lobule types (p = 0.019). Peribronchial soft tissue was found in five cases. One calcification case was identified in the lobule type. During follow-up, ACB had disappeared in two cases of the blind-end type and in one case of the rudimentary subtype.
Conclusion
The proposed classification of ACB based on imaging, and the follow-up CT, helped us to understand the various imaging features of ACB.
- All Author(s)
- K. Kim
; Y. T. Kim
; J. K. Han
; S. S. Jou
- Issued Date
- 2016
- Type
- Article
- Keyword
- Multidetector Computed Tomography; Bronchi; Classification
- ISSN
- 0301-2867
; 1738-2637
; 2288-2928
- Citation Title
- 대한영상의학회지
Journal of the Korean Society of Radiology
- Citation Volume
- 74
- Citation Number
- 2
- Citation Start Page
- 82
- Citation End Page
- 90
- Language(ISO)
- eng
- DOI
- 10.3348/jksr.2016.74.2.82
- URI
- http://schca-ir.schmc.ac.kr/handle/2022.oak/627
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