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The Use of Scanning Virtual Microscopy for Pathologist Education

The Use of Scanning Virtual Microscopy for Pathologist Education. Peter M. Banks, M.D. Director of Hematopathology Carolinas Medical Center Charlotte, North Carolina Adjunct Professor of Pathology UNC-Chapel Hill. First CME Course Based on Virtual Microscopy for Cases: Lessons Learned.

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The Use of Scanning Virtual Microscopy for Pathologist Education

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  1. The Use of Scanning Virtual Microscopy for Pathologist Education Peter M. Banks, M.D. Director of Hematopathology Carolinas Medical Center Charlotte, North Carolina Adjunct Professor of Pathology UNC-Chapel Hill

  2. First CME Course Based onVirtual Microscopy for Cases:Lessons Learned • Historical outline • Course organization • First presentation • Conclusions, recommendations

  3. Historical Timeline • ASCP – over 40 years education courses • 2002 – 2 of 4 mainstay courses in hemepath retired • Fall 2002 – proposal for new course from Banks/Dunphy – comprehensive, based on virtual microscopy for cases • November 2003 case scans due • January 2004 – faculty weekend: scan cropping, rehearsal • February 2004 – debut presentation

  4. Course Concept:Comprehensive Review of Hematopathology by WHO ClassificationHemic and Lymphoid

  5. Logistical Challenges with HemicProcesses for CME Courses: Small Cellular Smear/imprint Preparations - Nonreproducible

  6. Marketing

  7. Case Scan Gathering • Faculty given 6 month deadline to submit slides for scanning, review for QC. • 70 total cases • Cellular smear preparations (marrow, blood) required 60x oil scans • Tissue sections required 40x scans • Trade-off: large enough scans to be representative, small enough for packages

  8. Case Scan Gathering • File format for registrants’ take-home sets: CD’s (700 MB). How many too many? • Faculty meeting 2nd weekend January - 4 weeks prior to course debut(!) - cropping scans and rehearsing presentations. • Last-minute rescans required for 3 cases: critical areas out of focus • Annotations/coordinates for hard-to-find foci in scans • Master scans submitted for duplication and packaging

  9. Selection of Field to be Scanned

  10. Uncompressed – 4.1 GB Compressed – 169 MB

  11. Uncompressed – 508 MB Compressed – 28 MB

  12. Packaging

  13. February 9th 2004

  14. Course Debut • Course oversold (85 for 80 capacity) • Introductory explanation of system (20 min) • Demo laptop set-up at back of room • Simultaneous (2-screen) presentations - PowerPoints by lecturer Virtual by assisting colleague • Only 10 of 80 brought laptops • Evaluations: 75% favored virtual over glass slides for cases • Many complained that 2-screen presentation too much, hard to follow

  15. Conclusions - Recommendations • Great advantage realized: any cases can be used no matter how small the sampling • Savings in time, cost for producing glass slide sets; scans more durable • Requires one-time extra effort in selecting field for scan, proofing master scans in detail prior to duplication • Needs faculty rehearsal for facile presentation

  16. Postlude • Subsequent courses based on scanning virtual microscopy cases: PMB AAOMP (San Antonio 2006 - through 2009) ASCP Pulmonary Pathology (A. Churg) (first offering 2006) USCAP Specialty conferences and some short courses beginning 2006

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