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Rolf Gruetter

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Related publications (418)

Detection of neuronal activity and metabolism in a model of dehydration-induced anorexia in rats at 14.1T using manganese-enhanced MRI and 1H MRS

In this study, hypothalamic activation was performed by dehydration-induced anorexia (DIA) and overnight food suppression (OFS) in female rats. The assessment of the hypothalamic response to these challenges by manganese-enhanced MRI showed increased neuro ...

Wiley-Blackwell2011

Matching Pursuit Iterative Dipole Based Filter of Background Fields in Phase Imaging

Rolf Gruetter, Yves Wiaux, José Pedro Rebelo Ferreira Marques

The information present in the phase of gradient-echo images has opened a new window to look at fine brain anatomy. To obtain high quality phase images depicting small field perturbations produced by tissue susceptibility differences, large slowly spatiall ...

2011

Study of acetylcarnitine kinetics in skeletal muscle in vivo using hyperpolarized 1-13C acetate

Arnaud Comment, Rolf Gruetter, Mor-Miri Mishkovsky, Tian Cheng, Josefina Adriana Maria Bastiaansen

2011

Proton and phosphorus MRS of a 5xFAD mouse model of Alzheimer's disease

Patrick Aebischer, Bernard Schneider, Rolf Gruetter, Hongxia Lei, Sharon Janssens, Lili Sun-Reimer

2011

Hyperpolarized acetate as a metabolic tracer for skeletal and cardiac muscle energetics

Arnaud Comment, Rolf Gruetter, Mor-Miri Mishkovsky, Tian Cheng, Josefina Adriana Maria Bastiaansen

2011

Longitudinal MR Assessment of Hypoxic Ischemic Injury in the Immature Rat Brain

Rolf Gruetter, Yohan Van de Looij

Extremely preterm infants commonly show brain injury with long-term structural and functional consequences. Three-day-old (P3) rat pups share some similarities in terms of cerebral development with the very preterm infant (born at 24-28 weeks of gestation) ...

Wiley-Blackwell2011

Developmental and metabolic brain alterations in rats exposed to bisphenol A during gestation and lactation

Nicolas Kunz, Rolf Gruetter

In recent years, considerable research has focused on the biological effect of endocrine-disrupting chemicals. Bisphenol A (BPA) has been implicated as an endocrine-disrupting chemical (EDC) due to its ability to mimic the action of endogenous estrogenic h ...

Elsevier2011

Preparation with fasting and acipimox increases myocardial glucose uptake in mice during cardiac 18F-FDG microPET

Rolf Gruetter, Carole Poitry-Yamate

Oxford University Press2011

High-resolution mapping of the neurochemical profile after focal ischemia in mice

Rolf Gruetter, Hongxia Lei, Malte Alf

2011

Accelerated MR imaging with spread spectrum encoding

Jean-Philippe Thiran, Pierre Vandergheynst, Dimitri Nestor Alice Van De Ville, Rolf Gruetter, Yves Wiaux, José Pedro Rebelo Ferreira Marques, Gilles Puy

We advocate the use of a novel compressed sensing technique for accelerating the magnetic resonance image acquisition process, coined spread spectrum MR imaging or simply s2MRI. The method resides in pre-modulating the signal of interest by a linear chirp, ...

2011

In vivo 13C NMR spectroscopy at 14.1 T

Rolf Gruetter, João Miguel das Neves Duarte

2011

Second order proton traps for multi-nuclear RF coils: Applied for 13C MRS in humans at 7T

Rolf Gruetter

The concept of second order proton traps (consisting of an inductor and two capacitors) in coils for non-proton NMR allows control over the resonance frequency, the blocking frequency and the trap mode frequency. Effective proton traps with relatively high ...

2011

Magnetic resonance imaging (MRI) of high resolution quantitative detection of pancreatic islets in pancreas individual integers

Rolf Gruetter, Riikka Immonen

2011

Increase of [F-18]FLT Tumor Uptake In Vivo Mediated by FdUrd: Toward Improving Cell Proliferation Positron Emission Tomography

Bernard Lanz, Rolf Gruetter, David Viertl, Carole Poitry-Yamate, Hans-Anton Lehr

3'-deoxy-3'-[F-18]fluorothymidine ([F-18]FLT), a cell proliferation positron emission tomography (PET) tracer, has been shown in numerous tumors to be more specific than 2-deoxy-2-[F-18]fluoro-d-glucose ([F-18]FDG) but less sensitive. We studied the capaci ...

Elsevier2011

Spread spectrum for interferometric and magnetic resonance imaging

Jean-Philippe Thiran, Pierre Vandergheynst, Dimitri Nestor Alice Van De Ville, Rolf Gruetter, Yves Wiaux, Gilles Puy

We consider images probed through incomplete and noisy Fourier coverages, both in the context of radio interferometry (RI) and of magnetic resonance imaging (MRI). We show that the quality of signal reconstruction can be signiﬁcantly enhanced by the introd ...

IEEE Signal Process. Soc.2010

Echo-time independent signal modulations for strongly coupled systems in triple echo localization schemes: An extension of S-PRESS editing

Rolf Gruetter, Giulio Gambarota

The double spin-echo point resolved spectroscopy sequence (PRESS) is a widely used method and standard in clinical MR spectroscopy. Existence of important J-modulations at constant echo times, depending on the temporal delays between the rf-pulses, have be ...

Academic Press Inc - Elsevier Science2010

Hyperpolarizing Gases via Dynamic Nuclear Polarization and Sublimation

Arnaud Comment, Jean-Philippe Ansermet, Geoffrey Bodenhausen, François Lazeyras, Rolf Gruetter, Sami Jannin, Riddhiman Sarkar, Paul Romeo Vasos, Puneet Ahuja, Pascal Miéville, Jean-Noël Hyacinthe

A high throughput method was designed to produce hyperpolarized gases by combining lowtemperature dynamic nuclear polarization with a sublimation procedure. It is illustrated by applications to 129Xe nuclear magnetic resonance in xenon gas, leading to a si ...

American Physical Society2010

Neurochemical profile of the developing mouse cortex determined by in vivo1H NMR spectroscopy at 14.1 T and the effect of recurrent anaesthesia

Rolf Gruetter, João Miguel das Neves Duarte, Kim Do

P>The neurochemical profile of the cortex develops in a region and time specific manner, which can be distorted by psychiatric and other neurological pathologies. Pre-clinical studies often involve experimental mouse models. In this study, we determined th ...

Wiley-Blackwell2010

MP2RAGE, a self bias-field corrected sequence for improved segmentation and T-1-mapping at high field

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

The large spatial inhomogeneity in transmit B, field (B-1(+)) observable in human MR images at hi h static magnetic fields (B-0) severely impairs image quality. To overcome this effect in brain T-1-weighted images the, MPRAGE sequence was modified to gener ...

Elsevier2010

High resolution magnetic resonance imaging detects individual pancreatic islets in whole pancreas

Rolf Gruetter, Riikka Immonen

Springer Verlag2010

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