Quantification of bronchial dimensions at MDCT using dedicated software

Pierre Yves Brillet; C. I. Fetita; C. Beigelman-Aubry; A. Saragaglia; D. Perchet; F. Preteux; P. A. Grenier

doi:10.1007/s00330-006-0496-7

Quantification of bronchial dimensions at MDCT using dedicated software

Pierre Yves Brillet, C. I. Fetita, C. Beigelman-Aubry, A. Saragaglia, D. Perchet, F. Preteux, P. A. Grenier

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	1483-1489
Number of pages	7
Journal	European Radiology
Volume	17
Issue number	6
DOIs	https://doi.org/10.1007/s00330-006-0496-7
Publication status	Published - 1 Jun 2007
Externally published	Yes

Keywords

Bronchial diseases
Multi-detector row CT
Quantitative evaluation
Software

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10.1007/s00330-006-0496-7

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title = "Quantification of bronchial dimensions at MDCT using dedicated software",

abstract = "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.",

keywords = "Bronchial diseases, Multi-detector row CT, Quantitative evaluation, Software",

author = "Brillet, \{Pierre Yves\} and Fetita, \{C. I.\} and C. Beigelman-Aubry and A. Saragaglia and D. Perchet and F. Preteux and Grenier, \{P. A.\}",

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AU - Brillet, Pierre Yves

AU - Fetita, C. I.

AU - Beigelman-Aubry, C.

AU - Saragaglia, A.

AU - Perchet, D.

AU - Preteux, F.

AU - Grenier, P. A.

PY - 2007/6/1

Y1 - 2007/6/1

N2 - 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.

AB - 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.

KW - Bronchial diseases

KW - Multi-detector row CT

KW - Quantitative evaluation

KW - Software

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DO - 10.1007/s00330-006-0496-7

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JO - European Radiology

JF - European Radiology

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ER -

Quantification of bronchial dimensions at MDCT using dedicated software

Abstract

Keywords

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