User profiles for Rolf Gruetter

Rolf Gruetter

Ecole Polytechnique Fédérale de Lausanne
Verified email at epfl.ch
Cited by 29754

MP2RAGE, a self bias-field corrected sequence for improved segmentation and T1-mapping at high field

…, W van der Zwaag, PF Van de Moortele, R Gruetter - Neuroimage, 2010 - Elsevier
The large spatial inhomogeneity in transmit B 1 field (B 1 + ) observable in human MR images
at high static magnetic fields (B 0 ) severely impairs image quality. To overcome this effect …

Automatic, localized in Vivo adjustment of all first‐and second‐order shim coils

R Gruetter - Magnetic resonance in medicine, 1993 - Wiley Online Library
The implementation of a “fast, automatic shimming technique by mapping along projections”
(FASTMAP) on a 2.1‐Tesla whole‐body system is described. The method provides a …

Clinical proton MR spectroscopy in central nervous system disorders

…, UE Emir, J Frahm, RG González, S Gruber, R Gruetter… - Radiology, 2014 - pubs.rsna.org
A large body of published work shows that proton (hydrogen 1 [ 1 H]) magnetic resonance (MR)
spectroscopy has evolved from a research tool into a clinical neuroimaging modality. …

Field mapping without reference scan using asymmetric echo‐planar techniques

R Gruetter, I Tkáč - … Resonance in Medicine: An Official Journal …, 2000 - Wiley Online Library
Improvements in B 0 mapping and shimming were achieved by measuring the static field
information in multiple subsequent echoes generated by an asymmetric echo‐planar readout …

Toward an in vivo neurochemical profile: quantification of 18 metabolites in short-echo-time 1H NMR spectra of the rat brain

J Pfeuffer, I Tkáč, SW Provencher, R Gruetter - Journal of magnetic …, 1999 - Elsevier
Localized in vivo 1 H NMR spectroscopy was performed with 2-ms echo time in the rat brain
at 9.4 T. Frequency domain analysis with LCModel showed that the in vivo spectra can be …

In vivo 1H NMR spectroscopy of the human brain at 7 T

…, H Merkle, K Uǧurbil, R Gruetter - … in Medicine: An …, 2001 - Wiley Online Library
In vivo 1 H NMR spectra from the human brain were measured at 7 T. Ultrashort echo‐time
STEAM was used to minimize J‐modulation and signal attenuation caused by the shorter T 2 …

In vivo 1H NMR spectroscopy of the human brain at high magnetic fields: Metabolite quantification at 4T vs. 7T

…, G Adriany, K Uğurbil, R Gruetter - Magnetic Resonance in …, 2009 - Wiley Online Library
A comprehensive comparative study of metabolite quantification from the human brain was
performed on the same 10 subjects at 4T and 7T using MR scanners with identical consoles, …

MR spectroscopy of the human brain with enhanced signal intensity at ultrashort echo times on a clinical platform at 3T and 7T

…, M Hergt, G Krueger, R Gruetter - … in Medicine: An …, 2009 - Wiley Online Library
Recently, the spin‐echo full‐intensity acquired localized (SPECIAL) spectroscopy technique
was proposed to unite the advantages of short TEs on the order of milliseconds (ms) with …

Temperature and SAR calculations for a human head within volume and surface coils at 64 and 300 MHz

CM Collins, W Liu, J Wang, R Gruetter… - Journal of Magnetic …, 2004 - Wiley Online Library
Purpose To examine relationships between specific energy absorption rate (SAR) and
temperature distributions in the human head during radio frequency energy deposition in MRI. …

Localized short‐echo‐time proton MR spectroscopy with full signal‐intensity acquisition

…, G Gambarota, H Frenkel, R Gruetter - … in Medicine: An …, 2006 - Wiley Online Library
We developed a short‐echo‐time (TE) sequence for proton localized spectroscopy by combining
a 1D add‐subtract scheme with a doubly slice‐selective spin‐echo (SE) sequence. The …