3D CT segmentation of CAM type femoroacetabular impingement-reliability and relationship of CAM lesion with anthropomorphic features

Lihua Zhang, Joel Wells, Riham Dessouky, Adam Gleason, Rajiv Chopra, Yonatan Chatz Inoff, Nicholas Fey, Yin Xi, Avneesh Chhabra

Research output: Contribution to journalArticle

Abstract

Objective: Evaluate feasibility and reliability of 3DCT semi-automatic segmentation and volumetrics of CAM lesions in femoroacetabular impingement and determine correlations with anthropometrics. Methods: Consecutive series of 43 patients with CAM type FAI underwent 3DCT. 20 males and 23 females (30 unilateral and 13 bilateral symptomatic hips) were included. 56 CAM lesions and femoral heads were segmented by two readers. Radial images were obtained for alpha angles. Pearson and ICC correlations were used for analysis. Results: In 43 patients (male: female = 1 : 1.15), mean ± SD of age, height, BMI were 36.6 ± 11.47 years, 1.72 ± 0.10 meters and 26.25 ± 4.31 kg m-2. Femoral head and bumps were segmented in 4 min. Inter reader reliability was good to excellent for volumetrics and poor for alpha angles. Mean ± SD of CAM lesion and femoral head volumes were significantly higher (6.7 ± 2.5 cc3 and 62.9 ± 10.8 cc3) among males than females (p < 0.001) and with increasing patient height (Pearson correlation and p-values = 0.45, 0.0006; 0.82, < 0.0001 respectively). Conclusion: Volumetric analysis of CAM lesion shows better inter reader reliability than alpha angle measurements. CAM and femoral head volumes exhibit significant correlations with patient heights that may aid in pre-operative planning for femoroplasty. Advances in knowledge: Femoral head & CAM volumes are segmented three times faster than alpha angles with superior inter reader reliability than alpha angles. Femoral head & CAM volumes are significantly larger in males and positively correlate with patients' heights.

Original languageEnglish (US)
JournalBritish Journal of Radiology
Volume91
Issue number1092
DOIs
StatePublished - Jan 1 2018

Fingerprint

Femoracetabular Impingement
Thigh
Hip

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

3D CT segmentation of CAM type femoroacetabular impingement-reliability and relationship of CAM lesion with anthropomorphic features. / Zhang, Lihua; Wells, Joel; Dessouky, Riham; Gleason, Adam; Chopra, Rajiv; Inoff, Yonatan Chatz; Fey, Nicholas; Xi, Yin; Chhabra, Avneesh.

In: British Journal of Radiology, Vol. 91, No. 1092, 01.01.2018.

Research output: Contribution to journalArticle

@article{8c9b861995be420b910ef46b4361f942,
title = "3D CT segmentation of CAM type femoroacetabular impingement-reliability and relationship of CAM lesion with anthropomorphic features",
abstract = "Objective: Evaluate feasibility and reliability of 3DCT semi-automatic segmentation and volumetrics of CAM lesions in femoroacetabular impingement and determine correlations with anthropometrics. Methods: Consecutive series of 43 patients with CAM type FAI underwent 3DCT. 20 males and 23 females (30 unilateral and 13 bilateral symptomatic hips) were included. 56 CAM lesions and femoral heads were segmented by two readers. Radial images were obtained for alpha angles. Pearson and ICC correlations were used for analysis. Results: In 43 patients (male: female = 1 : 1.15), mean ± SD of age, height, BMI were 36.6 ± 11.47 years, 1.72 ± 0.10 meters and 26.25 ± 4.31 kg m-2. Femoral head and bumps were segmented in 4 min. Inter reader reliability was good to excellent for volumetrics and poor for alpha angles. Mean ± SD of CAM lesion and femoral head volumes were significantly higher (6.7 ± 2.5 cc3 and 62.9 ± 10.8 cc3) among males than females (p < 0.001) and with increasing patient height (Pearson correlation and p-values = 0.45, 0.0006; 0.82, < 0.0001 respectively). Conclusion: Volumetric analysis of CAM lesion shows better inter reader reliability than alpha angle measurements. CAM and femoral head volumes exhibit significant correlations with patient heights that may aid in pre-operative planning for femoroplasty. Advances in knowledge: Femoral head & CAM volumes are segmented three times faster than alpha angles with superior inter reader reliability than alpha angles. Femoral head & CAM volumes are significantly larger in males and positively correlate with patients' heights.",
author = "Lihua Zhang and Joel Wells and Riham Dessouky and Adam Gleason and Rajiv Chopra and Inoff, {Yonatan Chatz} and Nicholas Fey and Yin Xi and Avneesh Chhabra",
year = "2018",
month = "1",
day = "1",
doi = "10.1259/bjr.20180371",
language = "English (US)",
volume = "91",
journal = "British Journal of Radiology",
issn = "0007-1285",
publisher = "British Institute of Radiology",
number = "1092",

}

TY - JOUR

T1 - 3D CT segmentation of CAM type femoroacetabular impingement-reliability and relationship of CAM lesion with anthropomorphic features

AU - Zhang, Lihua

AU - Wells, Joel

AU - Dessouky, Riham

AU - Gleason, Adam

AU - Chopra, Rajiv

AU - Inoff, Yonatan Chatz

AU - Fey, Nicholas

AU - Xi, Yin

AU - Chhabra, Avneesh

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Objective: Evaluate feasibility and reliability of 3DCT semi-automatic segmentation and volumetrics of CAM lesions in femoroacetabular impingement and determine correlations with anthropometrics. Methods: Consecutive series of 43 patients with CAM type FAI underwent 3DCT. 20 males and 23 females (30 unilateral and 13 bilateral symptomatic hips) were included. 56 CAM lesions and femoral heads were segmented by two readers. Radial images were obtained for alpha angles. Pearson and ICC correlations were used for analysis. Results: In 43 patients (male: female = 1 : 1.15), mean ± SD of age, height, BMI were 36.6 ± 11.47 years, 1.72 ± 0.10 meters and 26.25 ± 4.31 kg m-2. Femoral head and bumps were segmented in 4 min. Inter reader reliability was good to excellent for volumetrics and poor for alpha angles. Mean ± SD of CAM lesion and femoral head volumes were significantly higher (6.7 ± 2.5 cc3 and 62.9 ± 10.8 cc3) among males than females (p < 0.001) and with increasing patient height (Pearson correlation and p-values = 0.45, 0.0006; 0.82, < 0.0001 respectively). Conclusion: Volumetric analysis of CAM lesion shows better inter reader reliability than alpha angle measurements. CAM and femoral head volumes exhibit significant correlations with patient heights that may aid in pre-operative planning for femoroplasty. Advances in knowledge: Femoral head & CAM volumes are segmented three times faster than alpha angles with superior inter reader reliability than alpha angles. Femoral head & CAM volumes are significantly larger in males and positively correlate with patients' heights.

AB - Objective: Evaluate feasibility and reliability of 3DCT semi-automatic segmentation and volumetrics of CAM lesions in femoroacetabular impingement and determine correlations with anthropometrics. Methods: Consecutive series of 43 patients with CAM type FAI underwent 3DCT. 20 males and 23 females (30 unilateral and 13 bilateral symptomatic hips) were included. 56 CAM lesions and femoral heads were segmented by two readers. Radial images were obtained for alpha angles. Pearson and ICC correlations were used for analysis. Results: In 43 patients (male: female = 1 : 1.15), mean ± SD of age, height, BMI were 36.6 ± 11.47 years, 1.72 ± 0.10 meters and 26.25 ± 4.31 kg m-2. Femoral head and bumps were segmented in 4 min. Inter reader reliability was good to excellent for volumetrics and poor for alpha angles. Mean ± SD of CAM lesion and femoral head volumes were significantly higher (6.7 ± 2.5 cc3 and 62.9 ± 10.8 cc3) among males than females (p < 0.001) and with increasing patient height (Pearson correlation and p-values = 0.45, 0.0006; 0.82, < 0.0001 respectively). Conclusion: Volumetric analysis of CAM lesion shows better inter reader reliability than alpha angle measurements. CAM and femoral head volumes exhibit significant correlations with patient heights that may aid in pre-operative planning for femoroplasty. Advances in knowledge: Femoral head & CAM volumes are segmented three times faster than alpha angles with superior inter reader reliability than alpha angles. Femoral head & CAM volumes are significantly larger in males and positively correlate with patients' heights.

UR - http://www.scopus.com/inward/record.url?scp=85056927234&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056927234&partnerID=8YFLogxK

U2 - 10.1259/bjr.20180371

DO - 10.1259/bjr.20180371

M3 - Article

C2 - 30168728

AN - SCOPUS:85056927234

VL - 91

JO - British Journal of Radiology

JF - British Journal of Radiology

SN - 0007-1285

IS - 1092

ER -