Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Felix A. Breuer"'
Autor:
Walter H. Kullmann, Andreas J. Bartsch, Martin Blaimer, Peter M. Jakob, Felix A. Breuer, Julian Pfister
Publikováno v:
Magnetic Resonance in Medicine. 81:3488-3502
Purpose To improve the reconstruction quality for quantitative T1 and T2 measurements using the inversion recovery (IR) TrueFISP sequence and to demonstrate the potential for multicomponent analysis. Methods The iterative reconstruction method takes
Publikováno v:
PLoS ONE, Vol 9, Iss 3, p e91030 (2014)
PURPOSE: To compare a novel combined acquisition technique (CAT) of turbo-spin-echo (TSE) and echo-planar-imaging (EPI) with conventional TSE. CAT reduces the electromagnetic energy load transmitted for spin excitation. This radiofrequency (RF) burde
Externí odkaz:
https://doaj.org/article/8de465b1f5ce4f6ba6aa601e00be653d
Autor:
Serge-Peer Ströhle, Felix A. Breuer, Bülent Polat, Constantin Lapa, Anne Richter, Stefan Weick, Philip Kleine, Kathrin Breuer, Simon Veldhoen, Michael Flentje
Blood oxygen level-dependent (BOLD) MRI is a non-invasive diagnostic method for assessing tissue oxygenation level, by changes in the transverse relaxation time T2*. 3D BOLD imaging of lung tumours is challenging, because respiratory motion can lead
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb0b94edaeb4cdaeec27fe53d27bbb87
https://publica.fraunhofer.de/handle/publica/263866
https://publica.fraunhofer.de/handle/publica/263866
Autor:
Zoltán Vidnyánszky, Kawin Setsompop, Martin Blaimer, Felix A. Breuer, Stephan Kannengiesser, Adam O. Kettinger
Publikováno v:
Magnetic Resonance in Medicine.
Purpose In this study we propose a method to combine the parallel virtual conjugate coil (VCC) reconstruction with partial Fourier (PF) acquisition to improve reconstruction conditioning and reduce noise amplification in accelerated MRI where PF is u
Autor:
Marius Heim, Peter M. Jakob, Felix A. Breuer, Stephan Kannengiesser, Daniel Neumann, Martin Blaimer
Publikováno v:
Magnetic Resonance in Medicine. 75:1086-1099
Purpose Phase-constrained parallel MRI approaches have the potential for significantly improving the image quality of accelerated MRI scans. The purpose of this study was to investigate the properties of two different phase-constrained parallel MRI f
Publikováno v:
Zeitschrift für Medizinische Physik. 26:63-74
Aims Dynamically phase-cycled radial balanced steady-state free precession (DYPR-SSFP) is a method for efficient banding artifact removal in bSSFP imaging. Based on a varying radiofrequency (RF) phase-increment in combination with a radial trajectory
Publikováno v:
Journal of Magnetic Resonance Imaging. 44:745-757
Purpose To present a technique, which allows for the in vivo quantification of the spectral line broadening of the human lung in a single breathhold. The line broadening is an interesting parameter of the lung because it can provide information about
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine. 29:5-15
To reduce acoustic noise levels in T 1-weighted and proton-density-weighted turbo spin-echo (TSE) sequences, which typically reach acoustic noise levels up to 100 dB(A) in clinical practice. Five acoustic noise reduction strategies were combined: (1)
Autor:
Julian, Pfister, Martin, Blaimer, Walter H, Kullmann, Andreas J, Bartsch, Peter M, Jakob, Felix A, Breuer
Publikováno v:
Magnetic resonance in medicine. 81(6)
To improve the reconstruction quality for quantitative TThe iterative reconstruction method takes advantage of the high redundancy in the smooth exponential signals using principle component analysis (PCA). Multicomponent information is preserved and
Autor:
David Grodzki, Peter M. Jakob, Martin Ott, Arnd Dörfler, Björn Heismann, Felix A. Breuer, Julie Roesch, Martin Blaimer
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine. 28:511-521
This work was aimed at reducing acoustic noise in diffusion-weighted MR imaging (DWI) that might reach acoustic noise levels of over 100 dB(A) in clinical practice. A diffusion-weighted readout-segmented echo-planar imaging (EPI) sequence was optimiz