28 Result(s)

Article

Application of a Dedicated Surface Coil in Dental MRI Provides Superior Image Quality in Comparison with a Standard Coil

Purpose of our research was the evaluation of a dedicated dental surface coil in comparison with a standard head and neck coil for the improvement of dental magnetic resonance imaging (MRI).

J. Gradl, M. Höreth, T. Pfefferle, M. Prager, T. Hilgenfeld… in Clinical Neuroradiology (2017)

Article

Accumulation of non-compressive fascicular lesions underlies NF2 polyneuropathy

A distinct polyneuropathy (PNP) syndrome affects up to 66 % of patients with neurofibromatosis II (NF2). Whether this is primarily a diffuse PNP or due to single, surgically amenable mass lesions has not yet b...

P. Bäumer, V. F. Mautner, T. Bäumer, M. U. Schuhmann, M. Tatagiba… in Journal of Neurology (2013)

Article

Comment to: Parametric Response Map as an Imaging Biomarker to Distinguish Progression from Pseudoprogression in High-Grade Glioma: Pitfalls in Perfusion MRI in Brain Tumors

Pseudoprogression is a recently recognized phenomenon which occurs mainly within the first 3 months after resection and radiochemotherapy of glioblastomas in up to 30% of cases. It refers to contrast enhanceme...

A. Radbruch, M. Bendszus, W. Wick, S. Heiland in Clinical Neuroradiology (2010)

Article

Quantitative diffusion tensor imaging in herpes simplex virus encephalitis

Diffusion-weighted imaging (DWI) has been employed in many brain pathologies, but with few studies only and heterogeneous results in herpes simplex virus encephalitis (HSVE). Diffusion tensor imaging (DTI) in ...

C. Herweh, M. R. Jayachandra, M. Hartmann, A. Gass, J. Sellner… in Journal of NeuroVirology (2007)

Article

DEGRO 2004

Thomas G. Wendt, G. Gademann, C. Pambor, I. Grießbach… in Strahlentherapie und Onkologie (2004)

Article

Differentiation of multiple sclerosis plaques, subacute cerebral ischaemic infarcts, focal vasogenic oedema and lesions of subcortical arteriosclerotic encephalopathy using magnetisation transfer measurements

Although multiple sclerosis (MS) plaques, subacute cerebral ischaemic infarcts, focal vasogenic brain oedema, and subcortical arteriosclerotic encephalopathy (SAE) often have typical radiological patterns, the...

M. A. Reidel, C. Stippich, S. Heiland, B. Storch-Hagenlocher, O. Jansen… in Neuroradiology (2003)

Chapter

Perfusion-weighted MM (PWI)

The term perfusion normally refers to the delivery of blood at the capillary level, where the metabolic exchange of nutrients and oxygen takes place. Perfusion-weighted MR imaging (PWI) allows the measurement ...

P. D. Schellinger, J. B. Fiebach, S. Heiland, K. Sartor in Stroke MRI (2003)

Chapter

Conventional MRI, Diffusion-weighted MRI (DWI) and Apparent Diffusion Coefficient (ADC)

Aside from the new MR imaging techniques, a stroke MRI protocol consists at least in part of conventional or standard MR sequences such as Tl-WI, T2-WI, FLAIR and MRA. On T2-WI ischemic infarction appears as a...

J. B. Fiebach, P. D. Schellinger, S. Heiland, K. Sartor in Stroke MRI (2003)

Article

Serial analysis of the apparent diffusion coefficient time course in human stroke

Acute cerebral ischemic injury can be rapidly detected on diffusion-weighted images. The apparent diffusion coefficient (ADC) depends on the stage of cytotoxic edema and water content in the infarcted parench...

J. Fiebach, O. Jansen, P. Schellinger, S. Heiland, W. Hacke, K. Sartor in Neuroradiology (2002)

Article

Comparison of CT with diffusion-weighted MRI in patients with hyperacute stroke

Tissue changes in ischaemic stroke are detectable by diffusion-weighted MRI (DWI) within minutes of the onset of symptoms. However, in daily routine CT is still the preferred imaging modality for patients wit...

J. Fiebach, O. Jansen, P. Schellinger, M. Knauth, M. Hartmann, S. Heiland… in Neuroradiology (2001)

Article

Does the ’keyhole' technique improve spatial resolution in MRI perfusion measurements? A study in volunteers

We examined the potential of the ’keyhole' technique to improve spatial resolution in perfusion-weighted MRI on whole-body imagers with standard gradient hardware. We examined 15 healthy volunteers. We acquir...

S. Heiland, P. Margosian, T. Benner, W. Reith, M. Forsting, K. Sartor in Neuroradiology (2001)

Article

Diffusion-weighted imaging of the brain: comparison of stimulated- and spin-echo echo-planar sequences

We used a rat model of focal cerebral ischaemia to compare stimulated-echo (STE) and spin-echo (SE) echo planar (EPI) diffusion-weighted sequences as regards image quality and accuracy of calculation of appar...

S. Heiland, O. Dietrich, K. Sartor in Neuroradiology (2001)

Article

Magnetresonanztomographie zur Planung vor dentaler Implantation

Fragestellung. Vor der Insertion dentaler Implantate in Risikoregionen und bei ausgeprägter Kieferatrophie wird zunehmend eine dreidimensionale bildgebende Diagnostik empfohlen. Da die Computerto...

S. Haßfeld, J. Fiebach, S. Widmann, S. Heiland… in Mund-, Kiefer- und Gesichtschirurgie (2001)

Article

Magnetisation transfer ratio is low in normal-appearing cerebral white matter in patients with normal pressure hydrocephalus

We measured the magnetisation transfer ratios (MTR) of normal-appearing rostral (PR) and caudal (PC) periventricular white matter, the genu (CG) and the splenium (CS) of the corpus callosum and the thalamus (...

S. Hähnel, M. Freund, K. Münkel, S. Heiland, O. Jansen, M. Reidel… in Neuroradiology (2000)

Article

Reducing motion artefacts in diffusion-weighted MRI of the brain: efficacy of navigator echo correction and pulse triggering

Diffusion-weighted MRI (DWI) is extremely sensitive to motion of the object being examined. Pulse triggering and navigator echo correction are methods for reducing motion artefacts which can be combined with ...

O. Dietrich, S. Heiland, T. Benner, K. Sartor in Neuroradiology (2000)

Article

Verbessern superparamagnetische Kontrastmittel die MR- tomographische Abgrenzbarkeit experimenteller Gliome?

T. Egelhof, N. Delbeck, M. Hartmann, S. U. Roth, V. Elste, S. Heiland… in Der Radiologe (1998)

Article

Neuroradiologische Diagnostik beim akuten arteriellen Hirninfarkt Momentaner Stellenwert neuer Verfahren

O. Jansen, S. Heiland, P. Schellinger in Der Nervenarzt (1998)

Article

Comparison of echo-planar sequences for perfusion-weighted MRI: which is best?

We compared gradient-echo (GRE), spin-echo (SE) and stimulated-echo (STE) echo-planar imaging sequences for perfusion-weighted imaging at different field strengths. Focal cerebral ischaemia was induced by end...

S. Heiland, W. Kreibich, W. Reith, T. Benner, A. Dörfler, M. Forsting… in Neuroradiology (1998)