A5006600724- Advanced Neuroimaging Techniques and Applications
- Advanced MRI Techniques and Applications
- MRI in cancer diagnosis
- Fetal and Pediatric Neurological Disorders
- Medical Imaging and Analysis
- Dysphagia Assessment and Management
- Anatomy and Medical Technology
- Traumatic Brain Injury and Neurovascular Disturbances
- Intracranial Aneurysms: Treatment and Complications
- Vascular Malformations Diagnosis and Treatment
- Cerebrospinal fluid and hydrocephalus
- Ophthalmology and Eye Disorders
- Cerebrovascular and Carotid Artery Diseases
- Epilepsy research and treatment
- Surgical Simulation and Training
- Electron Spin Resonance Studies
- Dementia and Cognitive Impairment Research
- Acute Ischemic Stroke Management
- Lanthanide and Transition Metal Complexes
- Neurosurgical Procedures and Complications
- Bone and Joint Diseases
- Glioma Diagnosis and Treatment
- Spinal Fractures and Fixation Techniques
- Spinal Dysraphism and Malformations
- Augmented Reality Applications
Johannes Gutenberg University Mainz
2004-2008
Medical University of Vienna
2005
Yahoo (United Kingdom)
2004
Klinik und Poliklinik für Psychosomatische Medizin und Psychotherapie
2004
University of Applied Sciences Mainz
2004
Object The authors report on their experience with a 3D virtual reality system for planning minimally invasive neurosurgical procedures. Methods Between October 2002 and April 2006, the used Dextroscope (Volume Interactions, Ltd.) to plan procedures in 106 patients, including 100 intracranial 6 spinal lesions. was performed 1 3 days preoperatively, 12 cases, prints of procedure were taken into operating room. A questionnaire completed by neurosurgeon after procedure. Results After short...
To determine if the diffusion tensor imaging (DTI) parameters fractional anisotropy (FA) and mean diffusivity (MD) can differentiate between accompanying edema tumor cell infiltration of white matter (WM) beyond edge as defined from conventional MRI in low- high-grade gliomas.We examined 12 patients with gliomas/glioblastomas eight low-grade gliomas compared them to 10 meningiomas, which no is expected. The was enhancing area glioblastomas meningiomas increased T2-signal gliomas. FA MD were...
Abstract Purpose To differentiate fibroblastic meningiomas, usually considered to be of a hard consistency, from other benign subtypes using diffusion tensor imaging (DTI). Materials and Methods From DTI data sets 30 patients with we calculated tensors mean diffusivity (MD) fractional anisotropy (FA) maps as well barycentric representing the geometrical shape tensors. The findings were compared postoperative histology. study was approved by local ethics committee, informed consent given...
28 patients after earlier (1-45 years) whole brain radiation and 22 healthy controls were examined by arterial spin labeling to discover insights ASL could give in long-term effects of therapy the brain. Relative cerebral blood flow relative bolus arrival time showed increased values compared control, which be a sign for permeability thickening vessels, two well described gives insight into.
Ziele: Beschreibung der Imaging-Technik mit steigenden b-Werten und von Postprocessing Ergebnissen bei Bahnendarstellung des zerebralen Marklagers in vivo. Methode: Ausgewertet wurden DTI-Datensätze 5 Normalpersonen. EPI-basierte DTI-Sequenz: TR/TE=8000/105 ms, b=1000–5000s/mm2, 33 lückenlose 3mm-Schichten Gesamtschädels, 6–48 Akquisitionen, Parallel-Akquisitions-Technik i-PAT Spule. Aus den Daten wurde voxelweise die Diffusions-Tensoren aus diesen ein kontinuierliches Tensoren-Feld...
Ziele: Bestimmung der Imaging- und Nachverarbeitungs-Parameter, die für ein Fiber-Tracking Pyramidenbahn im ödematösen peritumoralen Marklager mit seiner deutlich verminderten fraktionalen Anisotropie (FA) geeignet sind. Methode: Ausgewertet wurden DTI-Datensätze von 10 Hirntumoren Begleitödem. EPI-basierte DTI-Sequenz: TR/TE=8000/105 ms, b=1000s/mm2, 33 lückenlose 3mm-Schichten des Gesamtschädels, 6 Akquisitionen, Parallel-Akquisitions-Technik i-PAT Spule. Aus den Daten wurde voxelweise...
Object: Our aim was to validate the via DTI constructed pyramidal tract by intraoperative monitoring modalities – only nice images or rendering of a functional sytem? Methods: With help measurements isotropy, white matter tracts could be detected. The reconstructed choosing ROIs within its well known anatomic sites. These results were imported in two neuronavigation systems (either BrainLab® SonoWand®). During tumor resections cortical and/or subcortical sites as displayed navigation...