DOES THREE-DIMENSIONAL OPHTHALMIC CONTACT B-SCAN ULTRASONOGRAPHY OFFER NEW CAPABILITIES TO INVESTIGATE THE POSTERIOR SEGMENT AND THE ORBIT?

97th DOG Annual Meeting 1999

P643
DOES THREE-DIMENSIONAL OPHTHALMIC CONTACT B-SCAN ULTRASONOGRAPHY OFFER NEW CAPABILITIES TO INVESTIGATE THE POSTERIOR SEGMENT AND THE ORBIT?

M. Rauber, U. Mester

A commercially available three-dimensional ultrasonic system ( I-Scan, Ophthalmic Technologies Inc.) allows the acquisition and reconstruction of 3-D ultrasound images.
The value of these 3-D-reconstructions is elucidated showing several clinical examples ( mucocele, optical Schwannoma, osteoma of the choroid, retroorbital tumoral mass ).
This technique is effective to investigate the localisation of a tumor, the volume of a tumor and the relative position of the tumor in the orbit. The computer automatically stores acquired data, so that an exact follow-up of tumor growth is possible.
The display program allows viewing of stored 3-D-reconstructions at any time in order to readjust the clinical diagnosis in synopsis with additional examinations like computerized tomography or nuclear magnetic resonance.

Conclusion: Three-dimensional ultrasonography offers new capabilities to improve the diagnosis of ocular and orbital diseases.

Department of Ophthalmology, Bundesknappschafts Hospital Sulzbach

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