Oliver Kraff
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View article: Multi-center QA of ultrahigh-field systems
Multi-center QA of ultrahigh-field systems Open
View article: Blood Flow Velocity Analysis in Cerebral Perforating Arteries on 7T 2D Phase Contrast MRI with an Open-Source Software Tool (SELMA)
Blood Flow Velocity Analysis in Cerebral Perforating Arteries on 7T 2D Phase Contrast MRI with an Open-Source Software Tool (SELMA) Open
Blood flow velocity in the cerebral perforating arteries can be quantified in a two-dimensional plane with phase contrast magnetic imaging (2D PC-MRI). The velocity pulsatility index (PI) can inform on the stiffness of these perforating ar…
View article: Blood flow velocity analysis in cerebral perforating arteries on 7T 2D phase contrast MRI with an open-source software tool (SELMA)
Blood flow velocity analysis in cerebral perforating arteries on 7T 2D phase contrast MRI with an open-source software tool (SELMA) Open
View article: Concussion in Female Athletes of Contact Sports: A Scoping Review
Concussion in Female Athletes of Contact Sports: A Scoping Review Open
Background: Recent studies have described higher incidences of concussion, with more severe symptoms and worse outcomes in female athletes compared with male athletes. Purpose: To compile current knowledge about sex-specific differences in…
View article: Repetitive head injuries in German American football players do not change blood-based biomarker candidates for CTE during a single season
Repetitive head injuries in German American football players do not change blood-based biomarker candidates for CTE during a single season Open
View article: Safety and function of programmable ventriculo-peritoneal shunt valves: An in vitro 7 Tesla magnetic resonance imaging study
Safety and function of programmable ventriculo-peritoneal shunt valves: An in vitro 7 Tesla magnetic resonance imaging study Open
Objective The quantity of ultra-high field MRI neuroimaging studies has rapidly increased. This study tests function, safety, and image artifacts of two frequently implanted programmable ventriculo-peritoneal (VP) shunt valves in a 7T MRI …
View article: Safety and function of programmable ventriculo-peritoneal shunt valves: An in vitro 7 Tesla magnetic resonance imaging study
Safety and function of programmable ventriculo-peritoneal shunt valves: An in vitro 7 Tesla magnetic resonance imaging study Open
DICOM files: Image artifacts of Codman Certas Plus and proGAV 2.0 at 7 Tesla GRE, SE and MPRAGE
View article: Safety and function of programmable ventriculo-peritoneal shunt valves: An in vitro 7 Tesla magnetic resonance imaging study
Safety and function of programmable ventriculo-peritoneal shunt valves: An in vitro 7 Tesla magnetic resonance imaging study Open
DICOM files: Image artifacts of Codman Certas Plus and proGAV 2.0 at 7 Tesla GRE, SE and MPRAGE
View article: Numerical approach to investigate MR imaging artifacts from orthopedic implants at different field strengths according to ASTM F2119
Numerical approach to investigate MR imaging artifacts from orthopedic implants at different field strengths according to ASTM F2119 Open
Objective This study presents an extended evaluation of a numerical approach to simulate artifacts of metallic implants in an MR environment. Methods The numerical approach is validated by comparing the artifact shape of the simulations an…
View article: Development and evaluation of a numerical simulation approach to predict metal artifacts from passive implants in MRI
Development and evaluation of a numerical simulation approach to predict metal artifacts from passive implants in MRI Open
View article: The traveling heads 2.0: Multicenter reproducibility of quantitative imaging methods at 7 Tesla
The traveling heads 2.0: Multicenter reproducibility of quantitative imaging methods at 7 Tesla Open
Our results show that quantitative brain imaging can be performed with high reproducibility at 7 T and with similar reliability as found at 3 T for multicenter studies of the supratentorial brain.
View article: 7-T clinical MRI of the shoulder in patients with suspected lesions of the rotator cuff
7-T clinical MRI of the shoulder in patients with suspected lesions of the rotator cuff Open
Background To evaluate feasibility and diagnostic performance of clinical 7-T magnetic resonance imaging (MRI) of the shoulder. Methods Eight patients with suspected lesions of the rotator cuff underwent 7-T MRI before arthroscopy. Image q…
View article: Higher sensitivity for traumatic cerebral microbleeds at 7 T ultra-high field MRI: is it clinically significant for the acute state of the patients and later quality of life?
Higher sensitivity for traumatic cerebral microbleeds at 7 T ultra-high field MRI: is it clinically significant for the acute state of the patients and later quality of life? Open
Background: The present study evaluates the possible prognostic benefits of 7 T susceptibility weighted imaging (SWI) of traumatic cerebral microbleeds (TMBs) over 3 T SWI to predict the acute clinical state and subjective impairments, inc…
View article: Adapted cabling of an EEG cap improves simultaneous measurement of EEG and fMRI at 7T
Adapted cabling of an EEG cap improves simultaneous measurement of EEG and fMRI at 7T Open
View article: A 32-channel parallel transmit system add-on for 7T MRI
A 32-channel parallel transmit system add-on for 7T MRI Open
The presented 32-channel parallel transmit system shows promising performance for ultra-high field whole-body imaging.
View article: European Ultrahigh‐Field Imaging Network for Neurodegenerative Diseases (EUFIND)
European Ultrahigh‐Field Imaging Network for Neurodegenerative Diseases (EUFIND) Open
Introduction The goal of European Ultrahigh‐Field Imaging Network in Neurodegenerative Diseases (EUFIND) is to identify opportunities and challenges of 7 Tesla (7T) MRI for clinical and research applications in neurodegeneration. EUFIND co…
View article: Issue Information
Issue Information Open
Rest of World), €3562 (Europe), £2817 (UK
View article: Cerebellar transcranial direct current stimulation modulates the fMRI signal in the cerebellar nuclei in a simple motor task
Cerebellar transcranial direct current stimulation modulates the fMRI signal in the cerebellar nuclei in a simple motor task Open
View article: A network of trans-cortical capillaries as mainstay for blood circulation in long bones
A network of trans-cortical capillaries as mainstay for blood circulation in long bones Open
View article: 1.5 versus 3 versus 7 Tesla in abdominal MRI: A comparative study
1.5 versus 3 versus 7 Tesla in abdominal MRI: A comparative study Open
Our results demonstrate the feasibility and overall comparable imaging ability of T1-weighted 7 Tesla abdominal MRI towards 3 Tesla and 1.5 Tesla MRI, yielding a promising diagnostic potential for non-enhanced Magnetic Resonance Angiograph…
View article: Nigrosome 1 visibility at susceptibility weighted 7T MRI—A dependable diagnostic marker for Parkinson's disease or merely an inconsistent, age-dependent imaging finding?
Nigrosome 1 visibility at susceptibility weighted 7T MRI—A dependable diagnostic marker for Parkinson's disease or merely an inconsistent, age-dependent imaging finding? Open
Aging with a related increase in iron concentration probably does not affect the visibility of nigrosome 1 at 7T SWI MRI. Our results support the role of this feature as a future differential diagnostic tool but further large-scale prospec…
View article: Analysis of an Integrated 8-Channel Tx/Rx Body Array for Use as a Body Coil in 7-Tesla MRI
Analysis of an Integrated 8-Channel Tx/Rx Body Array for Use as a Body Coil in 7-Tesla MRI Open
Object: In this work an 8-channel array integrated into the gap between the gradient coil and bore liner of a 7-Tesla whole-body magnet is presented that would allow a workflow closer to that of systems at lower magnetic fields that have a…
View article: 7T: Physics, safety, and potential clinical applications
7T: Physics, safety, and potential clinical applications Open
With more than 60 installed magnetic resonance imaging (MRI) systems worldwide operating at a magnetic field strength of 7T or higher, ultrahigh‐field (UHF) MRI has been established as a platform for clinically oriented research in recent …
View article: In vitro and in silico assessment of <scp>RF</scp>‐induced heating around intracranial aneurysm clips at 7 <scp>T</scp>esla
In vitro and in silico assessment of <span>RF</span>‐induced heating around intracranial aneurysm clips at 7 <span>T</span>esla Open
Purpose To examine radiofrequency‐induced tissue heating around intracranial aneurysm clips during a 7 Tesla (T) head MR examination. Methods Radiofrequency (RF), temperature simulations, and RF measurements were employed to investigate th…
View article: Romberg's test results (phases 1+2) indicating postural in-/stability by means of sway path length of the lumbar spine.
Romberg's test results (phases 1+2) indicating postural in-/stability by means of sway path length of the lumbar spine. Open
Results of the Romberg's test of all subjects of phase 1 and 2 (n = 46) displaying sway path lengths of the lumbar spine as an indicator of postural stability before, 2 minutes after, and 15 minutes after ‘7T no RF’ exposure. p-values of o…
View article: Diffuse Axonal Injury at Ultra-High Field MRI
Diffuse Axonal Injury at Ultra-High Field MRI Open
7 T SWI improves the depiction of small hemorrhagic DAI compared to 3 T and may be supplementary to lower field strengths for diagnostic in inconclusive or medicolegal cases.