Recherche

Afficher tous les résultats pour

Accueil

Personne

Gunnar Krüger

Cette personne n’est plus à l’EPFL

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (60)

A Connectome-Based Comparison of Diffusion MRI Schemes

Jean-Philippe Thiran, Xavier Gigandet, Patric Hagmann, Reto Meuli, Alessandra Griffa, Gunnar Krüger, Tobias Kober, Alessandro Daducci

Public Library of Science2013

Structural abnormalities in the thalamus of migraineurs with aura: a multiparametric study at 3T

Nouchine Hadjikhani, David Paul Roger Romascano, Gunnar Krüger, Cristina Granziera, Alessandro Daducci, Alexis Roche

Background and objectives: The thalamus exerts a pivotal role in pain processing and cortical excitability control, and migraine is characterized by repeated pain attacks and abnormal cortical habituation to excitatory stimuli. This work aimed at studying ...

Wiley-Blackwell2013

A simple method to denoise MP2RAGE

François Lazeyras, Rolf Gruetter, Gunnar Krüger, Alexis Roche, Kieran O'Brien

2013

An Initial Report on the Performance of Post Contrast Self-Navigated Whole-Heart Coronary MRI in Patients with Suspected or Established Coronary Artery Disease

Gunnar Krüger, Davide Piccini, Didier Locca

2013

3D Residual Eddy Current Field Characterisation: applied to Diffusion Weighted Magnetic Resonance Imaging

François Lazeyras, Rolf Gruetter, Gunnar Krüger, Alessandro Daducci, Kieran O'Brien

Clinical use of the Stejskal-Tanner diffusion weighted images is hampered by the geometric distortions that result from the large residual 3D eddy current field induced. In this work we aimed to predict, using linear response theory, the residual 3D eddy c ...

Institute of Electrical and Electronics Engineers2013

Magnetization transfer-based 3D visualization of foot peripheral nerves

Giulio Gambarota, Bénédicte Marie Maréchal, Gunnar Krüger, Cristina Granziera

PURPOSE: To investigate magnetization transfer (MT) effects as a new source of contrast for imaging and tracking of peripheral foot nerves. MATERIALS AND METHODS: Two sets of 3D spoiled gradient-echo images acquired with and without a saturation pulse were ...

Wiley-Blackwell2013

Micro-Structural Brain Alterations in Aviremic HIV+ Patients with Minor Neurocognitive Disorders: A Multi-Contrast Study at High Field

Djalel Eddine Meskaldji, Reto Meuli, François Lazeyras, Gunnar Krüger, Tobias Kober, Cristina Granziera, Alessandro Daducci, Alexis Roche

Objective Mild neurocognitive disorders (MND) affect a subset of HIV+ patients under effective combination antiretroviral therapy (cART). In this study, we used an innovative multi-contrast magnetic resonance imaging (MRI) approach at high-field to assess ...

Public Library of Science2013

Migraineurs without aura show microstructural abnormalities in the cerebellum and frontal lobe

Nouchine Hadjikhani, David Paul Roger Romascano, Gunnar Krüger, Cristina Granziera, Alessandro Daducci, Alexis Roche

The involvement of the cerebellum in migraine pathophysiology is not well understood. We used a biparametric approach at high-field MRI (3 T) to assess the structural integrity of the cerebellum in 15 migraineurs with aura (MWA), 23 migraineurs without aur ...

Springer US2013

Microstructural alterations in the brain of well treated HIV+ patients with minor neurocognitive disorders: a multi-contrast study at high field

Djalel Eddine Meskaldji, Gunnar Krüger, Cristina Granziera, Alessandro Daducci, Alexis Roche

2012

Structural abnormalities in the thalamus of migraine patients: a multi-parametric study at high field

Nouchine Hadjikhani, David Paul Roger Romascano, Gunnar Krüger, Cristina Granziera, Alessandro Daducci, Alexis Roche

2012

A new early and automated MRI-based predictor of motor improvement after stroke

Jean-Philippe Thiran, Djalel Eddine Meskaldji, Reto Meuli, Nouchine Hadjikhani, Gunnar Krüger, Cristina Granziera, Alessandro Daducci, Alexis Roche, Richard Frackowiak

Objectives: In this study, we investigated the structural plasticity of the contralesional motor network in ischemic stroke patients using diffusion magnetic resonance imaging (MRI) and explored a model that combines a MRI-based metric of contralesional ne ...

2012

MP2RAGE multiple sclerosis magnetic resonance imaging at 3 T

Reto Meuli, Rolf Gruetter, Delphine Ribes Lemay, Gunnar Krüger, Tobias Kober, Cristina Granziera

Objectives: Lesion detection and characterization in multiple sclerosis (MS) are an essential part of its clinical diagnosis and an important research field. In this pilot study, we applied the recently introduced two inversion-contrast magnetization-prepa ...

2012

Microstructural alterations in the brain of well treated HIV+ patients with minor neurocognitive disorders: a multi-contrast MRI study at 3T

Djalel Eddine Meskaldji, Gunnar Krüger, Cristina Granziera, Alessandro Daducci, Alexis Roche

2012

Effects of MRI scan acceleration on brain volume measurement consistency

Bénédicte Marie Maréchal, Gunnar Krüger, Cristina Granziera

To evaluate the effects of recent advances in magnetic resonance imaging (MRI) radiofrequency (RF) coil and parallel imaging technology on brain volume measurement consistency. ...

Wiley-Blackwell2012

A multi-center study: Intra-scan and inter-scan variability of Diffusion Spectrum Imaging

Jean-Philippe Thiran, François Lazeyras, Alia Lemkaddem, Gunnar Krüger, Alessandro Daducci, Kieran O'Brien

The objective of this study was to investigate whether it is possible to pool together diffusion spectrum imaging data from four different scanners, located at three different sites. Two of the scanners had identical configuration whereas two did not. To m ...

Elsevier2012

Temporal SNR characteristics in segmented 3D-EPI at 7T

Rolf Gruetter, Wietske Van der Zwaag, Gunnar Krüger, Tobias Kober, José Pedro Rebelo Ferreira Marques

Three-dimensional segmented echo planar imaging (3D-EPI) is a promising approach for high-resolution functional magnetic resonance imaging, as it provides an increased signal-to-noise ratio (SNR) at similar temporal resolution to traditional multislice 2D- ...

Wiley-Blackwell2012

Prospective and retrospective motion correction in diffusion magnetic resonance imaging of the human brain

Rolf Gruetter, Gunnar Krüger, Tobias Kober

Diffusion-weighting in magnetic resonance imaging (MRI) increases the sensitivity to molecular Brownian motion, providing insight in the micro-environment of the underlying tissue types and structures. At the same time, the diffusion weighting renders the ...

Elsevier2012

Magnetic resonance imaging of peripheral nerves: Differences in magnetization transfer

Giulio Gambarota, Gunnar Krüger

Introduction: Magnetic resonance imaging (MRI) is an excellent imaging modality for soft tissues. Magnetization transfer (MT) imaging is an MRI technique that is sensitive to the bound protons of macromolecules and therefore can aid in the assessment of ne ...

2012

Fluid and white matter suppression with the MP2RAGE sequence

Giulio Gambarota, Gunnar Krüger, Tobias Kober, José Pedro Rebelo Ferreira Marques

Purpose: To develop a magnetic resonance imaging (MRI) sequence (fluid and white matter suppression, FLAWS) for generating two sets of images from a single acquisition: one with contrast similar to a T1-weighted magnetization-prepared rapid gradient-echo s ...

Wiley-Blackwell2012

Multi-slice 2D MR imaging: automatic assessment of image quality

Jean-Philippe Thiran, Bénédicte Marie Maréchal, Gunnar Krüger

We describe a method for the automatic quality assessment of multi-slice 2D MRIs with FLAIR, T2, or PD contrast. Quality measures are derived by analyzing the air background, which can be used to sensitively detect typical motion artifacts. Validated on 42 ...

American Society of Neuroradiology2011

Page 2 sur 3