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Voicing a New Direction

Amanda Hu, MD; Tim Wilson, PhD; Hanif Ladak, PhD; Peter Haase, PhD; Kevin Fung, MD, FRCSC

Arch Otolaryngol Head Neck Surg. 2009;135(7):677-681.

Objectives  To create a 3-dimensional (3D) educational computer model of the larynx, to assess the feasibility of this learning module on a Web-based platform, and to obtain student feedback on the module.

Design  Male and female adult cadaveric necks were scanned with microcomputed tomographic and magnetic resonance imaging scanners. Key structures were identified on each slice of the computed tomogram and/or magnetic resonance image and analyzed with a segmentation software package. Then, the images were exported into Microsoft Powerpoint. Visual text and audio commentary were added. Real cases of a child's larynx, an adult with a tracheostomy, and a patient with laryngeal carcinoma were included. The computer module was launched on a password-protected, Web-based platform.

Participants  Fifty-eight first-year medical students (38% male; mean [SD] age, 23 [1.8] years) were invited to evaluate the module and to complete a survey.

Results  Most students thought that the 3D computer module was effective (60%), clear (66%), and user friendly (72%); most students (81%) thought that it was easier to understand laryngeal anatomy when they could visualize it in 3D; and most students (83%) said that they would like lectures better if they were supplemented with 3D computer modules.

Conclusion  A 3D educational computer model of the larynx has been successfully created and warmly received by medical students.

Author Affiliations: Departments of Otolaryngology (Drs Hu, Ladak, and Fung), Anatomy and Cell Biology (Drs Wilson and Haase), Medical Biophysics (Dr Ladak), and Electrical and Computer Engineering (Dr Ladak), University of Western Ontario, London, Canada.

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