About the Authors

Kenneth E. S. Poole

kp254@nhs.net

Affiliation Department of Medicine, University of Cambridge, Cambridge, Cambridgeshire, United Kingdom

Graham M. Treece

Affiliation Department of Engineering, University of Cambridge, Cambridge, Cambridgeshire, United Kingdom

Paul M. Mayhew

Affiliation Department of Medicine, University of Cambridge, Cambridge, Cambridgeshire, United Kingdom

Jan Vaculík

Affiliation Department of Orthopaedics, Faculty of Medicine, Charles University Prague and Bulovka Hospital, Prague, Czech Republic

Pavel Dungl

Affiliation Department of Orthopaedics, Faculty of Medicine, Charles University Prague and Bulovka Hospital, Prague, Czech Republic

Martin Horák

Affiliation Department of Radiology, Homolka Hospital, Prague, Czech Republic

Jan J. Štěpán

Affiliation Department of Rheumatology, Faculty of Medicine 1, Charles University Prague and Institute of Rheumatology, Prague, Czech Republic

Andrew H. Gee

Affiliation Department of Engineering, University of Cambridge, Cambridge, Cambridgeshire, United Kingdom

Competing Interests

GMT and KESP are co-inventors on a related GB patent application A method of determining the cortical thickness of a patients bone (GB0917524.1 Accurate cortical thickness measurement from clinical CT data, A method of determining the cortical thickness of a patients bone. International (PCT) Patent Application No PCT/GB2010/051671, CU ref: TRE-2326-09-01, International search ref: PC925159WO. Title: Image data processing systems, Inventors: G.M. Treece & K.E.S Poole). The other authors have declared that no competing interests exist. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: KESP PMM JS MH JV PD GMT AHG. Performed the experiments: KESP PMM GMT AHG. Analyzed the data: KESP AHG GMT. Contributed reagents/materials/analysis tools: JS MH JV PD PMM. Wrote the paper: KESP GMT AHG PMM JS MH JV PD. Designed the study to recruit patients with hip fracture in Prague: JV PD. Methods section critical review: JV PD.