Evaluation of radiolucency condition in total hip arthroplasty: a statistical comparison of the diagnostic capability of digitised image vs. conventional X-ray film.
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| Title: | Evaluation of radiolucency condition in total hip arthroplasty: a statistical comparison of the diagnostic capability of digitised image vs. conventional X-ray film. |
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| Authors: | Testoni, M.1, Baruffaldi, F.1, Mattioli, P.1, Sudanese, A.2, Terzi, S.1, Barbanti-Brodano, G.2, Toni, A.2 |
| Source: | European Radiology. Apr2000, Vol. 10 Issue 4, p601-608. 8p. |
| Subjects: | Total hip replacement, Radiographic films, Diagnostic imaging, Prosthetics, Medical protocols, Preventive medicine, Radiography, Evaluation research, Receiver operating characteristic curves, Research evaluation, Hip joint, Surgical complications, Research bias, Artificial joints, Computer-aided diagnosis, Research methodology, Research, Comparative studies, Sensitivity & specificity (Statistics) |
| Abstract: | This work analyses the diagnostic capability of radiographic images taken from patients with total hip arthroplasty and visualised on monitor. Images were obtained with digital acquisition of conventional X-ray films. The investigated pathology is the absence of direct contact between bone and prosthesis (radiolucency). Three senior orthopaedists defined the diagnostic "truth" on well-defined regions of interest on 22 conventional X-ray films of total hip arthroplasty, obtaining a total of 110 reference ratings. Films were digitised by use of an X-ray scanner. Four readers evaluated the X-ray images, applying conventional and monitor visualisation. To show any difference between ratings on film and ratings on monitor a sensitivity, specificity and accuracy study jointly with a receiver operating characteristics (ROC) study were performed for each reader and for all combined readings. The intra-observer reproducibility of the radiographic protocol was equal to 87% and the inter-observer one was in the range 85-92%. The sensitivity, specificity and accuracy study together with the ROC analysis did not show significant differences between the two evaluation modes. The evaluation of radiolucency from digitised X-ray films visualised on a monitor resulted statistically comparable with the conventional evaluation on X-ray films. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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