Using Computerized Simulations To Measure the Effects of Full Adoption Whole Slide Imaging on Medium and High Volume Clinical Histology Laboratories
David S McClintock, Jonathan B Bakst, John R Gilbertson. Massachusetts General Hospital, Boston, MA; University of Chicago Medical Center, Chicago, IL
Background: Whole slide imaging (WSI) has been touted as the future of anatomic pathology, with estimates of full adoption (scanning all slides from the histology laboratory) occurring sometime in the next 5-10 years. While WSI technology has improved greatly (scan times of 60 sec for a 15x15 mm2 area at 400X), there has been little consideration of the effects WSI may have on the current workflow of the clinical histology laboratory.
Design: Workflow process data for the clinical histology laboratories at the University of Chicago Medical Center (UCMC, medium volume lab) and Massachusetts General Hospital (MGH, high volume lab) was collected in regards to workflow process steps, equipment and personnel resources, and average daily volume of routine assets (blocks and slides). Histology lab workflow process models were created with business process analysis software and simulations run without, and then with, the presence of one or more WSI devices.
Results: The clinical histology laboratory models upon which simulations were run are shown in Figure 1 (red circles = WSI devices).
Simulation data showing histology lab turn-around-time (TAT) for a full day with all routine assets processed are shown in Figure 2. Adding WSI to the workflow of both the medium and high volume labs (60-180 sec average scan time per slide) demonstrates a dramatic increase in daily TAT.
Conclusions: Full adoption of WSI is unfeasible today without either 1) making drastic changes to the current workflow of the histology laboratory or 2) adding many WSI devices (5-7 for a medium volume lab, 9-11 for a large volume lab). Given the space and cost constraints of having more than 2-3 WSI devices in most histology laboratories, future efforts should be placed in redesigning and optimizing the clinical histology workflow in preparation for full adoption of WSI.
Tuesday, March 20, 2012 1:00 PM
Poster Session IV # 223, Tuesday Afternoon