Tassilo Klein Dipl. Inf. (Univ.) Chair for Computer Aided Medical Procedures & Augmented Reality Fakultät für Informatik Technische Universität München Boltzmannstr. 3 85748 Garching b. München room: MI 03.13.043 tel: +49 (0)89 289-17081 email:

Theses, SEPs, and IDPs under my (Co-)Supervision

Available:

• 3D Freehand Ultrasound Compounding for Ultrasound Doppler Angiography (DA/MA/BA)
  Ultrasound navigation is a desirable technique for guided neurosurgery. Blood vessels are among the most important anatomic structures which the surgeon needs for orientation. In 3D Freehand Ultrasound, we are (already) able to make 3D scans by sweeping an optically tracked ultrasound probe and combining many 2D slices with their respective pose into a 3D volume. In order to correctly visualize blood vessels, we would like to investigate improved reconstruction (or compounding) of blood vessels which are visualized with Doppler ultrasound. The improved images can be greatly useful for the surgeon to see anatomy correctly and have improved spatial context himself in a 3D ultrasound scan.
• Ultrasound Registration for Brain Shift Analysis Using a Cryo-Gel Phantom (DA/MA/BA)
  Planning of a trajectory in neurosurgery (e.g. for biopsy or Deep Brain Stimulation, DBS) is a delicate task. Typically, a path is defined by analyzing a MRI image of the patient and setting an entry and a target point (in the case of a linear trajectory). The resulting linear path typically passes critical areas such as blood vessels or functional areas in very close proximity (e.g. <5mm). During surgery, after opening the skull and the protective dura mater of the brain, a pressure change and loss of cerebro-spinal fluid (CSF) can lead to a tissue shift of the brain – the so-called Brain Shift. Although this shift can be very small, e.g. 2mm in the deep brain areas, very little changes can deteriorate the reliability of the pre-operative plan significantly. In this thesis, we investigate how to use ultrasound for assessment and compensation of brain shift.

Current:

Finished:

• Error Propagation for Augmented Reality Assisted Navigated Pedicle Screw Implantation by Irene Faure de Pebeyre (Diploma Thesis)

Publications

2007
	T. Klein, J. Traub, H. Hautmann, A. Ahmadian, N. Navab Fiducial-Free Registration Procedure for Navigated Bronchoscopy Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October/November 2007.
	T. Klein, S. Benhimane, J. Traub, S.M. Heining, E. Euler, N. Navab Interactive Guidance System for C-arm Repositioning without Radiation Proceedings of Bildverarbeitung fuer die Medizin (BVM 2007), Munich, Germany, March 2007, pp. 21-25 (bib)

Awards

• Werner von Siemens Excellence Award 2008 for my diploma thesis Fiducial-Free Registration Procedure for Navigated Bronchoscopy

Diploma Thesis

HIWI

SEP

Computer Vision Lab Course Final Project click here