Imperial College London
Portrait Picture

Mr. Gareth G. Jones

Faculty of Medicine, Department of Surgery & Cancer

Clinical Senior Lecturer in Orthopaedic Surgery
 
 
 
//

Contact

 

+44 (0)20 7594 5465g.g.jones

 
 
//

Location

 

203Sir Michael Uren HubWhite City Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Wang:2023:10.1016/j.knee.2023.03.010,
author = {Wang, J and Hall, TAG and Musbahi, O and Jones, GG and van, Arkel RJ},
doi = {10.1016/j.knee.2023.03.010},
journal = {Knee},
pages = {281--288},
title = {Predicting hip-knee-ankle and femorotibial angles from knee radiographs with deep learning},
url = {http://dx.doi.org/10.1016/j.knee.2023.03.010},
volume = {42},
year = {2023}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - BACKGROUND: Knee alignment affects the development and surgical treatment of knee osteoarthritis. Automating femorotibial angle (FTA) and hip-knee-ankle angle (HKA) measurement from radiographs could improve reliability and save time. Further, if HKA could be predicted from knee-only radiographs then radiation exposure could be reduced and the need for specialist equipment and personnel avoided. The aim of this research was to assess if deep learning methods could predict FTA and HKA angle from posteroanterior (PA) knee radiographs. METHODS: Convolutional neural networks with densely connected final layers were trained to analyse PA knee radiographs from the Osteoarthritis Initiative (OAI) database. The FTA dataset with 6149 radiographs and HKA dataset with 2351 radiographs were split into training, validation, and test datasets in a 70:15:15 ratio. Separate models were developed for the prediction of FTA and HKA and their accuracy was quantified using mean squared error as loss function. Heat maps were used to identify the anatomical features within each image that most contributed to the predicted angles. RESULTS: High accuracy was achieved for both FTA (mean absolute error 0.8°) and HKA (mean absolute error 1.7°). Heat maps for both models were concentrated on the knee anatomy and could prove a valuable tool for assessing prediction reliability in clinical application. CONCLUSION: Deep learning techniques enable fast, reliable and accurate predictions of both FTA and HKA from plain knee radiographs and could lead to cost savings for healthcare providers and reduced radiation exposure for patients.
AU  - Wang,J
AU  - Hall,TAG
AU  - Musbahi,O
AU  - Jones,GG
AU  - van,Arkel RJ
DO  - 10.1016/j.knee.2023.03.010
EP  - 288
PY  - 2023///
SN  - 0968-0160
SP  - 281
TI  - Predicting hip-knee-ankle and femorotibial angles from knee radiographs with deep learning
T2  - Knee
UR  - http://dx.doi.org/10.1016/j.knee.2023.03.010
UR  - https://www.ncbi.nlm.nih.gov/pubmed/37119601
UR  - http://hdl.handle.net/10044/1/103822
VL  - 42
ER  -
Download