Quantification of bronchial dimensions at MDCT using dedicated software

Quantification of bronchial dimensions at MDCT using dedicated software

This study aimed to assess the feasibility of quantification of bronchial dimensions at MDCT using dedicated software (BronCare). We evaluated the reliability of the software to segment the airways and defined criteria ensuring accurate measurements. BronCare was applied on two successive examinatio...

Full description

Saved in:
Bibliographic Details
Published in:European radiology Vol. 17; no. 6; pp. 1483 - 1489
Main Authors: Brillet, P Y, Fetita, C I, Beigelman-Aubry, C, Saragaglia, A, Perchet, D, Preteux, F, Grenier, P A
Format: Journal Article
Language:English
Published: Germany Springer Nature B.V 01-06-2007
Subjects:
Asthma
Asthma - diagnostic imaging
Bronchi
Bronchography - methods
Bronchus
Clinical medicine
Criteria
Evaluation
Failure
Feasibility Studies
Humans
Image acquisition
Image processing
Image segmentation
Lungs
Radiographic Image Interpretation, Computer-Assisted - methods
Reproducibility of Results
Signal to noise ratio
Software
Software reliability
Tomography, X-Ray Computed
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study aimed to assess the feasibility of quantification of bronchial dimensions at MDCT using dedicated software (BronCare). We evaluated the reliability of the software to segment the airways and defined criteria ensuring accurate measurements. BronCare was applied on two successive examinations in 10 mild asthmatic patients. Acquisitions were performed at pneumotachographically controlled lung volume (65% TLC), with reconstructions focused on the right lung base. Five validation criteria were imposed: (1) bronchus type: segmental and subsegmental; (2) lumen area (LA)>4 mm2; (3) bronchus length (Lg) > 7 mm; (4) confidence index - giving the percentage of the bronchus not abutted by a vessel - (CI) >55% for validation of wall area (WA) and (5) a minimum of 10 contiguous cross-sectional images fulfilling the criteria. A complete segmentation procedure on both acquisitions made possible an evaluation of LA and WA in 174/223 (78%) and 171/174 (98%) of bronchi, respectively. The validation criteria were met for 56/69 (81%) and for 16/69 (23%) of segmental bronchi and for 73/102 (72%) and 58/102 (57%) of subsegmental bronchi, for LA and WA, respectively. In conclusion, BronCare is reliable to segment the airways in clinical practice. The proposed criteria seem appropriate to select bronchi candidates for measurement.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0938-7994
1432-1084
DOI:10.1007/s00330-006-0496-7