Evaluation of a structured e-learning-based approach to CT anatomy of the paranasal sinuses for medical students
Abstract Background: Computed tomography (CT) anatomy is not an integral part of undergraduate medical training in many countries. Radiology seems to be well suited for new online based teaching methods. The aim of the study was to evaluate whether e-learning is appropriate to introduce complex learning contents such as sinus CT anatomy in novices and to assess the usefulness of a sinus CT checklist to identify relevant anatomical variants in medical students. Material: Medical students were asked to assess sinus CT scans for anatomical variants before and after the implementation of the CLOSE mnemonic. Sinus CT anatomy and the CLOSE mnemonic were introduced by e-learning. The rate of correctly identified variants and the results of the individual CLOSE items were recorded and compared with those of otolaryngology residents. A questionnaire was distributed for subjective evaluation of the usefulness of the checklist and e-learning.Results: Ten students took part in the study. The rate of correctly identified variants improved significantly from 33.3% to 61.1%. The analysis of the individual CLOSE items showed a significant improvement for C, S and E in students and C, L and S in otolaryngology residents. The students identified more anatomical variants compared to the residents. The subjective evaluation of the CLOSE mnemonic and e-learning was very positive.Conclusion: E-learning was able to transfer complex learning contents in previously non-trained medical students and was evaluated as an appropriate introduction to the topics. The structured assessment of paranasal sinus CT scans using the CLOSE criteria can significantly improve the recognition of anatomical variants.