Table 1.

Technical specifications of the automated microscope scanners (Ocus 40, Grundium; EasyScan One, Motic) used with the Vetscan Imagyst (Zoetis).^14,25

	Ocus 40	EasyScan One
Objective lens	0.75 na 20× Plan Apo	0.75 na 20× Plan Apo
Accommodates multiple objective lenses	No	Yes
Effective magnification	0.25 mpp	0.25 mpp
Scan time (20 × 20 mm)	8–10 min	4–6 min
Image quality	Excellent	Excellent
Lighting and image capture	Blue, green, and red LED strobe with a rolling shutter grayscale sensor	White LED illumination with multicolor sensor
Scanner dimensions and computer control	18 × 18 × 19 cm; scanner with integrated GPU, allowing user interface from basic internet connected device (Fig. 1)	20 × 40 × 42 cm; connected physically (wired) to a control laptop with GPU capable of handling images (Fig. 2)
Loading and cleaning	Easier front-loading system; objective lens accessible for inspection/cleaning (Fig. 1)	More complicated slide tray loading; cover must be removed to view/clean objective lens (Fig. 2).
User interface	Combined scanner control and interface for viewing results	Separate user interface for scanner control and viewing results

GPU = graphic processing unit; LED = light emitting diode; mpp = µm per pixel; na = numerical aperture; Plan Apo = plan apochromat.