Research Topics
| Stefan HunscheSummaryAffiliation: University of Cologne Country: Germany Publications
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Detail Information
Publications
Intraoperative X-ray detection and MRI-based quantification of brain shift effects subsequent to implantation of the first electrode in bilateral implantation of deep brain stimulation electrodesStefan Hunsche
Department of Stereotactic and Functional Neurosurgery, University of Cologne, Cologne, Germany
Stereotact Funct Neurosurg 87:322-9. 2009..We investigated intraoperative X-ray imaging for its feasibility in indirect detection of brain shift...
Combined x-ray and magnetic resonance imaging facility: application to image-guided stereotactic and functional neurosurgeryStefan Hunsche
Department of Stereotactic and Functional Neurosurgery, University of Cologne, Cologne, Germany
Neurosurgery 60:352-60; discussion 360-1. 2007..To assess the feasibility of a hybrid imaging setup combining x-ray and magnetic resonance imaging (MRI) in the setting of both stereotactic and functional neurosurgery...
MR-guided stereotactic neurosurgery--comparison of fiducial-based and anatomical landmark transformation approachesS Hunsche
Department of Stereotaxy and Functional Neurosurgery, University of Cologne, Cologne, Germany
Phys Med Biol 49:2705-16. 2004..Mean Euclidian distances between both transformation methods were 0.96 mm for t2-weighted spin-echo and 1.67 mm for t1-weighted gradient-echo imaging. Maximum deviations were 1.72 mm and 3.06 mm, respectively...
Optimized distortion correction of epi-based statistical parametrical maps for stereotactic neurosurgeryStefan Hunsche
Department for Stereotactic and Functional Neurosurgery, University of Cologne, Cologne, Germany
Magn Reson Imaging 22:163-70. 2004..With several examples of patients and volunteers, the applicability for stereotactic neurosurgery is demonstrated...
Pineal parenchymal tumors. Management with interstitial iodine-125 radiosurgeryMohammad Maarouf
Department of Stereotactic and Functional Neurosurgery, University of Cologne, Kerpener Strasse 62, Koln, Germany
Strahlenther Onkol 186:127-34. 2010..To evaluate the efficacy of interstitial radiosurgery (IRS) for pineal parenchymal tumors (PPTs)...
Functional MRI for immediate monitoring stereotactic thalamotomy in a patient with essential tremorVolker Hesselmann
Department of Radiology, University of Cologne, Joseph Stelzmann Strasse 9, 50924, Cologne, Germany
Eur Radiol 16:2229-33. 2006..The importance of the intermediate thalamic nucleus and the olivary nucleus in tremor generation is supported by our findings...
Impact of target point deviations on control and complication probabilities in stereotactic radiosurgery of AVMs and metastasesHarald Treuer
Department of Stereotaxy and Functional Neurosurgery, University of Cologne, Germany
Radiother Oncol 81:25-32. 2006..Determination of the impact of inaccuracies in the determination and setup of the target point in stereotactic radiosurgery (SRS) on the expectable complication and control probabilities...
Functional MRI using multiple receiver coils: BOLD signal changes and signal-to-noise ratio for three-dimensional-PRESTO vs. single shot EPI in comparison to a standard quadrature head coilVolker Hesselmann
Department of Radiology, University of Cologne, Joseph Stelzmann Strasse 9, 50924 Köln, Germany
J Magn Reson Imaging 20:321-6. 2004....
FAIR and dynamic susceptibility contrast-enhanced perfusion imaging in healthy subjects and stroke patientsStefan Hunsche
Department for Stereotactic and Functional Neurosurgery, University of Cologne, Cologne, Germany
J Magn Reson Imaging 16:137-46. 2002..To compare dynamic susceptibility contrast-enhanced magnetic resonance imaging (DSC-MRI) and the flow-sensitive alternating inversion recovery (FAIR) technique for measuring brain perfusion...
The influence of head frame distortions on stereotactic localization and targetingH Treuer
Department of Stereotaxy and Functional Neurosurgery, University of Cologne, 50924 Cologne, Germany
Phys Med Biol 49:3877-87. 2004..Therefore, a generalization is not possible. Preliminary experience with a new MR-compatible RM head frame made of ceramics shows no frame distortions as with the conventional frame made of an Al-Cu-Mg alloy...
Geometrical and dosimetrical characterization of the photon source using a micro-multileaf collimator for stereotactic radiosurgeryH Treuer
Department of Stereotaxy and Functional Neurosurgery, University of Cologne, Cologne, Germany
Phys Med Biol 48:2307-19. 2003..Thus the method can be used for base dosimetry and for quality assurance in radiosurgery using a microMLC...
Altered effective connectivity during working memory performance in schizophrenia: a study with fMRI and structural equation modelingRalf Schlosser
Department of Psychiatry, University of Mainz, Mainz, Germany
Neuroimage 19:751-63. 2003....
Cerebellar speech representation: lesion topography in dysarthria as derived from cerebellar ischemia and functional magnetic resonance imagingPeter Paul Urban
Department of Neurology, Institute of Neuroradiology, University of Mainz, Mainz, Germany
Arch Neurol 60:965-72. 2003..Lesion topography and the pathophysiological background of dysarthria due to focal cerebellar lesions have not yet been fully clarified...
Diffusion-weighted MRI of cholesteatomas of the petrous boneClemens Fitzek
Institute of Neuroradiology, University of Mainz, Mainz, Germany
J Magn Reson Imaging 15:636-41. 2002..To investigate if primary cholesteatomas of the petrous bone show high signal in diffusion-weighted imaging (DWI)...
Characterization of BOLD-fMRI signal during a verbal fluency paradigm in patients with intracerebral tumors affecting the frontal lobeRalf Schlosser
Department of Psychiatry, Universit of Mainz, Germany
Magn Reson Imaging 20:7-16. 2002..Additional studies investigating alterations of the hemodynamic response depending on tumor location and histology are required in order to further elucidate the association between pathophysiology and BOLD fMRI signal...
