Body composition estimation from selected slices: equations computed from a new semi-automatic thresholding method developed on whole-body CT scans

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Standard

Body composition estimation from selected slices : equations computed from a new semi-automatic thresholding method developed on whole-body CT scans. / Lacoste Jeanson, Alizé; Dupej, Ján; Villa, Chiara; Brůžek, Jaroslav.

I: PeerJ, Bind 2017, Nr. 5, e3302, 2017.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Lacoste Jeanson, A, Dupej, J, Villa, C & Brůžek, J 2017, 'Body composition estimation from selected slices: equations computed from a new semi-automatic thresholding method developed on whole-body CT scans', PeerJ, bind 2017, nr. 5, e3302. https://doi.org/10.7717/peerj.3302

APA

Lacoste Jeanson, A., Dupej, J., Villa, C., & Brůžek, J. (2017). Body composition estimation from selected slices: equations computed from a new semi-automatic thresholding method developed on whole-body CT scans. PeerJ, 2017(5), [e3302]. https://doi.org/10.7717/peerj.3302

Vancouver

Lacoste Jeanson A, Dupej J, Villa C, Brůžek J. Body composition estimation from selected slices: equations computed from a new semi-automatic thresholding method developed on whole-body CT scans. PeerJ. 2017;2017(5). e3302. https://doi.org/10.7717/peerj.3302

Author

Lacoste Jeanson, Alizé ; Dupej, Ján ; Villa, Chiara ; Brůžek, Jaroslav. / Body composition estimation from selected slices : equations computed from a new semi-automatic thresholding method developed on whole-body CT scans. I: PeerJ. 2017 ; Bind 2017, Nr. 5.

Bibtex

@article{1571261486f04de3ab125f9e0feff2fb,
title = "Body composition estimation from selected slices: equations computed from a new semi-automatic thresholding method developed on whole-body CT scans",
abstract = "BackgroundEstimating volumes and masses of total body components is important for the study and treatment monitoring of nutrition and nutrition-related disorders, cancer, joint replacement, energy-expenditure and exercise physiology. While several equations have been offered for estimating total body components from MRI slices, no reliable and tested method exists for CT scans. For the first time, body composition data was derived from 41 high-resolution whole-body CT scans. From these data, we defined equations for estimating volumes and masses of total body AT and LT from corresponding tissue areas measured in selected CT scan slices.MethodsWe present a new semi-automatic approach to defining the density cutoff between adipose tissue (AT) and lean tissue (LT) in such material. An intra-class correlation coefficient (ICC) was used to validate the method. The equations for estimating the whole-body composition volume and mass from areas measured in selected slices were modeled with ordinary least squares (OLS) linear regressions and support vector machine regression (SVMR).Results and DiscussionThe best predictive equation for total body AT volume was based on the AT area of a single slice located between the 4th and 5th lumbar vertebrae (L4-L5) and produced lower prediction errors (|PE| = 1.86 liters, %PE = 8.77) than previous equations also based on CT scans. The LT area of the mid-thigh provided the lowest prediction errors (|PE| = 2.52 liters, %PE = 7.08) for estimating whole-body LT volume. We also present equations to predict total body AT and LT masses from a slice located at L4-L5 that resulted in reduced error compared with the previously published equations based on CT scans. The multislice SVMR predictor gave the theoretical upper limit for prediction precision of volumes and cross-validated the results.",
author = "{Lacoste Jeanson}, Aliz{\'e} and J{\'a}n Dupej and Chiara Villa and Jaroslav Brů{\v z}ek",
year = "2017",
doi = "10.7717/peerj.3302",
language = "English",
volume = "2017",
journal = "PeerJ",
issn = "2167-8359",
publisher = "PeerJ",
number = "5",

}

RIS

TY - JOUR

T1 - Body composition estimation from selected slices

T2 - equations computed from a new semi-automatic thresholding method developed on whole-body CT scans

AU - Lacoste Jeanson, Alizé

AU - Dupej, Ján

AU - Villa, Chiara

AU - Brůžek, Jaroslav

PY - 2017

Y1 - 2017

N2 - BackgroundEstimating volumes and masses of total body components is important for the study and treatment monitoring of nutrition and nutrition-related disorders, cancer, joint replacement, energy-expenditure and exercise physiology. While several equations have been offered for estimating total body components from MRI slices, no reliable and tested method exists for CT scans. For the first time, body composition data was derived from 41 high-resolution whole-body CT scans. From these data, we defined equations for estimating volumes and masses of total body AT and LT from corresponding tissue areas measured in selected CT scan slices.MethodsWe present a new semi-automatic approach to defining the density cutoff between adipose tissue (AT) and lean tissue (LT) in such material. An intra-class correlation coefficient (ICC) was used to validate the method. The equations for estimating the whole-body composition volume and mass from areas measured in selected slices were modeled with ordinary least squares (OLS) linear regressions and support vector machine regression (SVMR).Results and DiscussionThe best predictive equation for total body AT volume was based on the AT area of a single slice located between the 4th and 5th lumbar vertebrae (L4-L5) and produced lower prediction errors (|PE| = 1.86 liters, %PE = 8.77) than previous equations also based on CT scans. The LT area of the mid-thigh provided the lowest prediction errors (|PE| = 2.52 liters, %PE = 7.08) for estimating whole-body LT volume. We also present equations to predict total body AT and LT masses from a slice located at L4-L5 that resulted in reduced error compared with the previously published equations based on CT scans. The multislice SVMR predictor gave the theoretical upper limit for prediction precision of volumes and cross-validated the results.

AB - BackgroundEstimating volumes and masses of total body components is important for the study and treatment monitoring of nutrition and nutrition-related disorders, cancer, joint replacement, energy-expenditure and exercise physiology. While several equations have been offered for estimating total body components from MRI slices, no reliable and tested method exists for CT scans. For the first time, body composition data was derived from 41 high-resolution whole-body CT scans. From these data, we defined equations for estimating volumes and masses of total body AT and LT from corresponding tissue areas measured in selected CT scan slices.MethodsWe present a new semi-automatic approach to defining the density cutoff between adipose tissue (AT) and lean tissue (LT) in such material. An intra-class correlation coefficient (ICC) was used to validate the method. The equations for estimating the whole-body composition volume and mass from areas measured in selected slices were modeled with ordinary least squares (OLS) linear regressions and support vector machine regression (SVMR).Results and DiscussionThe best predictive equation for total body AT volume was based on the AT area of a single slice located between the 4th and 5th lumbar vertebrae (L4-L5) and produced lower prediction errors (|PE| = 1.86 liters, %PE = 8.77) than previous equations also based on CT scans. The LT area of the mid-thigh provided the lowest prediction errors (|PE| = 2.52 liters, %PE = 7.08) for estimating whole-body LT volume. We also present equations to predict total body AT and LT masses from a slice located at L4-L5 that resulted in reduced error compared with the previously published equations based on CT scans. The multislice SVMR predictor gave the theoretical upper limit for prediction precision of volumes and cross-validated the results.

U2 - 10.7717/peerj.3302

DO - 10.7717/peerj.3302

M3 - Journal article

C2 - 28533960

VL - 2017

JO - PeerJ

JF - PeerJ

SN - 2167-8359

IS - 5

M1 - e3302

ER -

ID: 178319863