Use of Whole Slide Digital Images in Residency Education: Utility in Documenting Microscopic Feature Finding Skills
B Chaser, KM Fung, LA Hassell. Oklahoma University Health Sciences Center, Oklahoma City, OK
Background: Whole slide digital imaging has been shown to improve undergraduate educational interaction with histologic and microscopic materials in significant ways. The role of WSDI in post-graduate, post-residency continuing education also appears to be evolving into a significant niche. The use of WSDI in residency level education has been little explored but may offer significant advantages in competency-focused training.
Design: We selected eighteen slides demonstrating a specific microscopic feature that required knowledge of the entity and microscopic locating skills. The slides were scanned as whole slide digital images (WSDI) using an Aperio scanner, and divided into two groups. Eight upper level residents were each given one group of slides as WSDI and one group as traditional glass slides and instructions to find the specified feature and photograph it for verification, using either the Imagescope photocapture tool, or a microscope mounted digital camera. The time required to locate the feature was recorded for each slide but the time needed for photography was not included. Results were stratified by post-graduate year, a subjective technology affinity score, media type (glass vs. WSDI) and case.
Results: Mean time to locate the feature was longer for WSDI in 14 of 18 cases, by a mean of 10 sec. Finding time overall decreased according to year of training as expected. The mean relative percent differences in finding times was 59% in cases where glass slides were faster, 31% in the four cases where WSDI were faster, and 40.4% overall. Finding times did not appear to correlate with the subjective technology affinity score.
Conclusions: WSDI are still a novelty to many residents and their skills in finding specific features using this media appear to differ from their facility in finding comparable features on glass slides. Features which can be located using scanning power may represent an exception to that, where the low power digital image may enhance finding. Digital slides viewed with an accompanying photocapture tool may offer an easy way to document specific microscopic finding skills in residency education. The speed with which WSDI can be manipulated using the current mouse and keyboard interface may be an impediment to rapid feature localization.
Tuesday, March 23, 2010 9:30 AM
Poster Session III # 105, Tuesday Morning