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Proceedings Paper

A novel flexible clinical multiphoton tomograph for early melanoma detection, skin analysis, testing of anti-age products, and in situ nanoparticle tracking
Author(s): Martin Weinigel; Hans Georg Breunig; Axel Gregory; Peter Fischer; Marcel Kellner-Höfer; Rainer Bückle; Karsten König
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Paper Abstract

High-resolution 3D microscopy based on multiphoton induced autofluorescence and second harmonic generation have been introduced in 1990. 13 years later, CE-marked clinical multiphoton systems for 3D imaging of human skin with subcellular resolution have first been launched by JenLab company with the tomography DermaInspect®. This year, the second generation of clinical multiphoton tomographs was introduced. The novel multiphoton tomograph MPTflex, equipped with a flexible articulated optical arm, provides an increased flexibility and accessibility especially for clinical and cosmetical examinations. Improved image quality and signal to noise ratio (SNR) are achieved by a very short source-drain spacing, by larger active areas of the detectors and by single photon counting (SPC) technology. Shorter image acquisition time due to improved image quality reduces artifacts and simplifies the operation of the system. The compact folded optical design and the light-weight structure of the optical head eases the handling. Dual channel detectors enable to distinguish between intratissue elastic fibers and collagenous structures simultaneously. Through the use of piezo-driven optics a stack of optical cross-sections (optical sectioning) can be acquired and 3D imaging can be performed. The multiphoton excitation of biomolecules like NAD(P)H, flavins, porphyrins, elastin, and melanin is done by picojoule femtosecond laser pulses from an tunable turn-key femtosescond near infrared laser system. The ability for rapid high-quality image acquisition, the user-friendly operation of the system and the compact and flexible design qualifies this system to be used for melanoma detection, diagnostics of dermatological disorders, cosmetic research and skin aging measurements as well as in situ drug monitoring and animal research.

Paper Details

Date Published: 25 February 2010
PDF: 7 pages
Proc. SPIE 7589, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X, 758908 (25 February 2010); doi: 10.1117/12.841960
Show Author Affiliations
Martin Weinigel, JenLab GmbH (Germany)
Hans Georg Breunig, JenLab GmbH (Germany)
Axel Gregory, JenLab GmbH (Germany)
Peter Fischer, JenLab GmbH (Germany)
Marcel Kellner-Höfer, JenLab GmbH (Germany)
Rainer Bückle, JenLab GmbH (Germany)
Karsten König, JenLab GmbH (Germany)
Saarland Univ. (Germany)

Published in SPIE Proceedings Vol. 7589:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X
Alexander Heisterkamp; Joseph Neev; Stefan Nolte; Rick P. Trebino, Editor(s)

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