Predicting scoliosis in DXA scans using intermediate representations

We describe a method to automatically predict scoliosis in Dual-energy X-ray Absorptiometry (DXA) scans. We also show that intermediate representations, which in our case are segments of body parts, help improve performance. Hence, we propose a two step process for prediction: (i) we learn to segmen...

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Հիմնական հեղինակներ: Jamaludin, A, Kadir, T, Clark, E, Zisserman, A
Ձևաչափ: Conference item
Լեզու:English
Հրապարակվել է: Springer 2019
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author Jamaludin, A
Kadir, T
Clark, E
Zisserman, A
author_facet Jamaludin, A
Kadir, T
Clark, E
Zisserman, A
author_sort Jamaludin, A
collection OXFORD
description We describe a method to automatically predict scoliosis in Dual-energy X-ray Absorptiometry (DXA) scans. We also show that intermediate representations, which in our case are segments of body parts, help improve performance. Hence, we propose a two step process for prediction: (i) we learn to segment body parts via a segmentation Convolutional Neural Network (CNN), which we show outperforms the noisy labels it was trained on, and (ii) we predict with a classification CNN that uses as input both the raw DXA scan and also the intermediate representation, i.e. the segmented body parts. We demonstrate that this two step process can predict scoliosis with high accuracy, and can also localize the spinal curves (i.e. geometry) without additional supervision. Furthermore, we also propose a soft score of scoliosis based on the classification CNN which correlates to the severity of scoliosis.
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spelling oxford-uuid:5d6a13ae-f474-4836-a77c-afa0e8810f142022-03-26T17:34:24ZPredicting scoliosis in DXA scans using intermediate representationsConference itemhttp://purl.org/coar/resource_type/c_5794uuid:5d6a13ae-f474-4836-a77c-afa0e8810f14EnglishSymplectic Elements at OxfordSpringer2019Jamaludin, AKadir, TClark, EZisserman, AWe describe a method to automatically predict scoliosis in Dual-energy X-ray Absorptiometry (DXA) scans. We also show that intermediate representations, which in our case are segments of body parts, help improve performance. Hence, we propose a two step process for prediction: (i) we learn to segment body parts via a segmentation Convolutional Neural Network (CNN), which we show outperforms the noisy labels it was trained on, and (ii) we predict with a classification CNN that uses as input both the raw DXA scan and also the intermediate representation, i.e. the segmented body parts. We demonstrate that this two step process can predict scoliosis with high accuracy, and can also localize the spinal curves (i.e. geometry) without additional supervision. Furthermore, we also propose a soft score of scoliosis based on the classification CNN which correlates to the severity of scoliosis.
spellingShingle Jamaludin, A
Kadir, T
Clark, E
Zisserman, A
Predicting scoliosis in DXA scans using intermediate representations
title Predicting scoliosis in DXA scans using intermediate representations
title_full Predicting scoliosis in DXA scans using intermediate representations
title_fullStr Predicting scoliosis in DXA scans using intermediate representations
title_full_unstemmed Predicting scoliosis in DXA scans using intermediate representations
title_short Predicting scoliosis in DXA scans using intermediate representations
title_sort predicting scoliosis in dxa scans using intermediate representations
work_keys_str_mv AT jamaludina predictingscoliosisindxascansusingintermediaterepresentations
AT kadirt predictingscoliosisindxascansusingintermediaterepresentations
AT clarke predictingscoliosisindxascansusingintermediaterepresentations
AT zissermana predictingscoliosisindxascansusingintermediaterepresentations