Mr. Michael J. Truppe Profile

Michael J. Truppe

at Eurodoc Telemedizin GmbH

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Proceedings Article | 27 December 2000 Paper

Teleprescence in ear, nose, and throat surgery

Wolfgang Freysinger, Andreas Gunkel, Walter Thumfart, Michael Truppe

Proceedings Volume 4311, (2000) https://doi.org/10.1117/12.411904

KEYWORDS: Video, Surgery, Networks, Magnetism, Cameras, Cell phones, Visualization, Computed tomography, Endoscopy, Internet

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The intraoperative orientation of a surgeon during video- endoscopic endonasal procedures is a challenge. Individual anatomical knowledge and modern 3D-computer assisted navigation technologies provide a maximum of information during surgery (=patient safety). A such, the position of a tool is visualized in the preoperative radiologic images as the center of cross-hairs in typical axial, coronal and sagittal views of, e.g. a stack of CT images. We have implement the augmentation of reality by superimposing the positional data and additional guiding structures- access paths and delicate structures- to the live video of the surgical site. The currently available telecommunication infrastructure allows to connect any two locations in order to facilitate and allow remotely proctored preoperative planning, consultation and guidance. This allows to provide the maximum of intra-operative information, with an expert advice from a remote specialist. We have been achieving satisfactory results on base of telephone, ISDN, Ethernet and Atm connections and could demonstrate that the ARTMA technology provides essential information for a remote expert, who shares the same information as the local surgeon, and can be an essential aid for difficult surgical interventions. The ARTMA Knowledge Guided Surgery can become an important tool for further optimizing surgery.

Proceedings Article | 12 May 1995 Paper

Interventional video tomography

Michael Truppe, Ferenc Pongracz, Oliver Ploder, Arne Wagner, Rolf Ewers

Proceedings Volume 2395, (1995) https://doi.org/10.1117/12.209096

KEYWORDS: Video, Surgery, Endoscopes, Image fusion, Sensors, Cameras, Calibration, Tomography, 3D image processing, Imaging systems

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Interventional Video Tomography (IVT) is a new imaging modality for Image Directed Surgery to visualize in real-time intraoperatively the spatial position of surgical instruments relative to the patient's anatomy. The video imaging detector is based on a special camera equipped with an optical viewing and lighting system and electronic 3D sensors. When combined with an endoscope it is used for examining the inside of cavities or hollow organs of the body from many different angles. The surface topography of objects is reconstructed from a sequence of monocular video or endoscopic images. To increase accuracy and speed of the reconstruction the relative movement between objects and endoscope is continuously tracked by electronic sensors. The IVT image sequence represents a 4D data set in stereotactic space and contains image, surface topography and motion data. In ENT surgery an IVT image sequence of the planned and so far accessible surgical path is acquired prior to surgery. To simulate the surgical procedure the cross sectional imaging data is superimposed with the digitally stored IVT image sequence. During surgery the video sequence component of the IVT simulation is substituted by the live video source. The IVT technology makes obsolete the use of 3D digitizing probes for the patient image coordinate transformation. The image fusion of medical imaging data with live video sources is the first practical use of augmented reality in medicine. During surgery a head-up display is used to overlay real-time reformatted cross sectional imaging data with the live video image.

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