Table 1. . Technical differences between VivaScope^® 1500 & VivaScope 3000.

Technical data	VivaScope 1500	VivaScope 3000
Horizontal optical resolution	<1.25 μm in center of image field	<1.25 μm in center of image field
Vertical optical resolution	<5.0 μm in center of image field	<5.0 μm in center of image field
Maximum imaging depth	Superficial dermis	Superficial dermis
Viewable section of individual images	500 μm × 500 μm	750 × 750 μm or 1000 × 1000 μm‡
Maximum mapped field	8.0 × 8.0 mm	Unlimited
Image resolution	1000 × 1000 pixels	1000 × 1000 pixels
Optical operating power	CDRH Class 1†	CDRH Class 1† (maximum 22 mW)
Imaging wavelength	830 nm	830 nm
Magnification	ca. 520×	ca. 350×
Objective	Caliber I.D. StableView™ 30× magnification, 0.9 NA water immersion	Caliber I.D. StableView 30× magnification, 0.9 NA water immersion
Imaging types	Individual view, blocks/mosaics, movie	Individual view, stacks, movies
Practical uses	Assess global architecture of lesions, directly correlate dermoscopic and confocal findings	Rapid evaluation of large lesions on small and curved areas. Less time consuming than the Vivascope® 1500
Limitations	Bulky steel arm. Need to re-apply adhesive window for every mosaic view	No clear dermoscopic correlation

^†CDRH is a regulatory office within the US FDA for the safety of laser devices. Class 1 level means laser radiation is not considered to be hazardous or cause any biological damage.

^‡The viewable section of individual images may be different depending on the generation of the Vivascope 3000 that is used.

ca: Chromatic aberration; Caliber I.D.: Caliber Imaging & Diagnostics, Inc.; CDRH: Center for Devices and Radiological Health; NA: Numerical Aperture.

Reproduced with permission from [10] © Mavig Vivascope, Munich, Germany.