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- Title
Comparison between pre-mortem and post-mortem cadaveric images for use with augmented reality headsets during dissection.
- Authors
Jabbary Aslany, Fardad; McBain, Kimberly; Chen, Liang; O'Brien, Jeremy; Noel, Geoffroy P. J. C.
- Abstract
Purpose: Medical training has undergone many transformations to incorporate diagnostic imaging along side anatomical education. Post-mortem computed tomography (CT) scanning of body donors prior to dissection has been proposed. However, it poses challenges secondary to the embalming process and other post-mortem physiological changes that significantly alter the imaging quality. The purposes of this study were to compare the accuracy of pathology identification on pre- and post-mortem CT scans of body donors and to assess the integration of those scans in a dissection-based course, where these images were overlaid onto body donors using augmented reality (AR). Methods: Participants in this study included 35 fourth year medical students, 5 radiology residents and 3 radiologists. A convergent, parallel mixed methods design was employed with quantitative measures that included statistical analyses of a double-blinded comparison of pathological lesions recognition, on both image sets, the group responses to a study participant survey and the login access data from imaging repository. The study also included qualitative analysis of post-elective structured interviews. Results: The double-blinded comparison revealed that staff radiologists can only identify, on post-mortem images, 54.8% of the pathologies that they were able to detect on the pre-mortem scans. Analyses of the surveys and login access data reveal that 60% of radiology residents and 56% of students preferred pre-mortem scans and used those scans more often than post-mortem scans (67 access vs 36, respectively). However, post-mortem scans were significantly preferred when used to overlay onto body donors using AR (p = 0.0047). Conclusion: These results show that post-mortem imaging can be valuable alongside pre-mortem imaging, as they represent the most concordance between the anatomical structures and pathologies seen on the images and what is being dissected.
- Subjects
AUGMENTED reality; MEDICAL students; POSTMORTEM changes; HEADSETS; ANATOMICAL pathology; DICOM (Computer network protocol); PICTURE archiving &; communication systems
- Publication
Surgical & Radiologic Anatomy, 2023, Vol 45, Issue 10, p1311
- ISSN
0930-1038
- Publication type
Article
- DOI
10.1007/s00276-023-03239-z