Steffen Leonhardt

Email: 
Organization: 
RWTH Aachen University Germany
Biography or Other Information: 
Philips Chair for Medical Information Technology

Documents:

  • Parametric Reconstruction for Impedance Cystovolumetry
    2014-04-24
    A low-parametric reconstruction method for human bladder volume estimation has been developed and compared to the conventional image-based global impedance method. Main advantages of the new method are conductivity invariant volume estimate and increased accuracy for medium to high bladder volumes.
  • Impedance-Cystovolumetry from Multifrequency Electrical Impedance Tomography
    2014-04-24
    The objective of impedance-cystovolumetry is the continuous, non-invasive monitoring of bladder volume. By using electrical impedance tomography, a correlation between the change of impedance in the image and bladder volume can be found. However, the typically used timedifferential approach has the problem of both requiring a calibration measurement with an empty bladder and being dependent on the urine conductivity. This paper presents an improvement to the time-differential approach using multifrequency electrical impedance tomography.
  • Progress in Perfusion Imaging with EIT
    2014-04-25
    There is significant interest in the use of EIT to detect and monitor the changes induced by perfusion, however, such measurement presents various technical difficulties. This talk focuses on recent progress in perfusion imaging with EIT.
  • Optimizing PEEP in ARDS: comparison of diverse EIT parameters
    2014-04-25
    Although EIT is a promising technique optimizing ventilator settings, the best approach that leads to an improved clinical outcome is still unknown. Against the background that diverse EIT derived parameters have been published in the last years, clinical studies focusing on defined outcome parameters have to clarify pros and cons of these measures. The aim of this study was to compare several EIT parameters in an animal trial of ARDS.