Automatic Positioning of a Surgical Microscope

Type of publication:  Artikel in einem Konferenzbericht
Buchtitel: 39. GI Jahrestagung
Serie: Lecture Notes in Informatics
Band: 154
Jahr: 2009
Monat: September
Seiten: 998-1009
Verlag: Bonner Köllen
Ort: Lübeck, Germany
Organisation: GI
Querverweis: GI2009
Abriss: A procedure for interactive navigation of a fully motorized surgical microscope is presented. This procedure uses preoperative MRT- or CT-images to generate a 3D-model of the patient which then acts as the basis for navigation during surgery. The relation between tracking system, microscope and 3D-model is established using a simple calibration method based on the Horn algorithm. It enables positioning the microscope by defining target points either directly on the patient using an optical marker or on his 3D-model. After reaching the target position the microscope focuses automatically by calculating the focus score of the current field of view as function of the working distance. Thus, not only the surgeon will be discharged from positioning the microscope but he can also continue his work almost immediately. Manual interaction becomes unnecessary.
Autoren: Finke, Markus
Meyer, Tobias
Stille, Maik
Schweikard, Achim