Investigation to improve the resolution and range of a light imaging system for very thick tissues

Abund Ottokar Wist; Peter Moon; Steven Lynn Herr; Panos P. Fatouros

doi:10.1117/12.210005

30 May 1995 Investigation to improve the resolution and range of a light imaging system for very thick tissues

Abund Ottokar Wist, Peter Moon, Steven Lynn Herr, Panos P. Fatouros

Proceedings Volume 2389, Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation; (1995) https://doi.org/10.1117/12.210005
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

A high resolution light imaging system has been developed utilizing an HeNe (628 nm, 32 mW) and a receiver with post collimation mounted on an x, y table to scan the object. The image can be either recorded on a film or stored in a computer for display on a terminal. Tests show that the system in the regular mode is capable of detecting the spine and soft tissues in anesthetized mice, and of transilluminating fully an adult skull bone with a resolution for details better than one third mm. In teeth, all regular carious lesions, including incipient lesions larger than one third of a mm, can be seen in front or in the back of the tooth, none of which could be detected by dental x-ray systems. Applying a new high resolution mode, the resolution can be increased in teeth to less than 0.1 mm. Some difficulty still exists in detecting small lesions on occlusal or approximal surfaces.

Citation Download Citation

Abund Ottokar Wist, Peter Moon, Steven Lynn Herr, and Panos P. Fatouros "Investigation to improve the resolution and range of a light imaging system for very thick tissues", Proc. SPIE 2389, Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation, (30 May 1995); https://doi.org/10.1117/12.210005

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