TY  - CHAP
A1  - Bitz, Andreas
A1  - Kobus, Thiele
A1  - Scheenen, Tom W. J.
A1  - Ladd, Mark E.
T1  - RF Safety of the Combination of a 31P Tx/Rx Endorectal Coil & a 1H Tx/Rx Body Array for 31P MRSI of the Prostate at 7T (311.)
T2  - 20th Annual ISMRM scientific meeting and exhibition 2012 : Melbourne, Australia, 5 - 11 May 2012
Y1  - 2013
SN  - 978-1-62276-943-8
SN  - 1545-4428
IS  - Volume 1
SP  - 311
PB  - Curran
CY  - Red Hook, NY
ER  - 
TY  - JOUR
A1  - Orzada, Stephan
A1  - Johst, Sören
A1  - Maderwald, Stefan
A1  - Bitz, Andreas
A1  - Solbach, Klaus
A1  - Ladd, Mark E.
T1  - Mitigation of B1(+) inhomogeneity on single-channel transmit systems with TIAMO
JF  - Magnetic Resonance in Medicine
Y1  - 2013
U6  - https://doi.org/10.1002/mrm.24453
SN  - 1522-2594
VL  - 70
IS  - 1
SP  - 290
EP  - 294
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Umutlu, Lale
A1  - Bitz, Andreas
A1  - Maderwald, Stefan
A1  - Orzada, Stephan
A1  - Kinner, Sonja
A1  - Kraff, Oliver
A1  - Brote, Irina
A1  - Ladd, Susanne C.
A1  - Schroeder, Tobias
A1  - Forsting, Michael
T1  - Contrast-enhanced ultra-high-field liver MRI: a feasibility trial
JF  - European Journal of Radiology
Y1  - 2013
U6  - https://doi.org/10.1016/j.ejrad.2011.07.004
SN  - 0720-048X
VL  - 82
IS  - 5
SP  - 760
EP  - 767
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Umutlu, Lale
A1  - Kraff, Oliver
A1  - Fischer, Anja
A1  - Kinner, Sonja
A1  - Maderwald, Stefan
A1  - Nassenstein, Kai
A1  - Nensa, Felix
A1  - Grüneisen, Johannes
A1  - Orzada, Stephan
A1  - Bitz, Andreas
A1  - Forsting, Michael
A1  - Ladd, Mark E.
A1  - Lauenstein, Thomas C.
T1  - Seven-Tesla MRI of the female pelvis
JF  - European Radiology
Y1  - 2013
U6  - https://doi.org/10.1007/s00330-013-2868-0
SN  - 1432-1084
VL  - 23
IS  - 9
SP  - 2364
EP  - 2373
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Bitz, Andreas
A1  - Felder, Jorg
A1  - Wittig, Tilmann
T1  - Designing MRI Coils with Aid of Simulation
JF  - Microwaves & RF
Y1  - 2013
SN  - 0745-2993
VL  - 52
IS  - 7
SP  - 56
PB  - Penton
CY  - Cleveland, Ohio
ER  - 
TY  - JOUR
A1  - Kraff, Oliver
A1  - Wrede, Karsten H.
A1  - Schoemberg, Tobias
A1  - Dammann, Philipp
A1  - Noureddine, Yacine
A1  - Orzada, Stephan
A1  - Ladd, Mark E.
A1  - Bitz, Andreas
T1  - MR safety assessment of potential RF heating from cranial fixation plates at 7 T
JF  - Medical Physics
Y1  - 2013
U6  - https://doi.org/10.1118/1.4795347
SN  - 2473-4209
VL  - 40
IS  - 4
SP  - 042302-1
EP  - 042302-10
PB  - Wiley
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Umutlu, L.
A1  - Maderwald, S.
A1  - Kinner, S.
A1  - Kraff, O.
A1  - Bitz, Andreas
A1  - Orzada, S.
A1  - Johst, S.
A1  - Wrede, K.
A1  - Forsting, M.
A1  - Ladd, M. E.
A1  - Lauenstein, T. C.
A1  - Quick, H. H.
T1  - First-pass contrast-enhanced renal MRA at 7 Tesla: initial results
JF  - European Radiology
Y1  - 2013
U6  - https://doi.org/10.1007/s00330-012-2666-0
SN  - 1432-1084
VL  - 23
IS  - 4
SP  - 1059
EP  - 1066
PB  - Springer
CY  - Berlin
ER  - 
TY  - GEN
A1  - Waiczies, Helmar
A1  - Kühne, André
A1  - Winter, Lukas
A1  - Frauenrath, Tobias
A1  - Hoffmann, Werner
A1  - Ittermann, Bernd
A1  - Waiczies, Sonia
A1  - Niendorf, Thoralf
T1  - Towards theranostics of rheumatoid arthritis: 1H/19F imaging of non-steroidal anti-inflammatory drugs in hand and wrist at 7 Tesla
T2  - 2013 ISMRM Annual Meeting Proceedings
N2  - We have developed a double-tuned ¹H/¹⁹F birdcage resonator dedicated for hand and wrist imaging at 7 T to locally image non-steroidal anti-inflammatory drugs (NSAID) such as 2-{[3-(Trifluoromethyl) phenyl]amino}benzoic acid. The preliminary in vivo images acquired by the double-tuned ¹H/¹⁹F birdcage resonator demonstrate the feasibility for ¹H/¹⁹F hand- and wrist-imaging at 7 T. While the diagnostic quality of the coil needs to be assessed in patients with inflammatory rheumatoid disease, first ¹⁹F images of the NSAID are encouraging, and point towards the prospect of applying ¹⁹F-MRI to visualize and quantify the concentration of therapeutically-active compound at the sites of inflammation.
Y1  - 2013
SN  - 1545-4428
N1  - ISMRM 21st Annual Meeting & Exhibition, 20-26 April 2013, Salt Lake City, Utah, USA
ER  - 
TY  - JOUR
A1  - Gräßl, Andreas
A1  - Renz, Wolfgang
A1  - Hezel, Fabian
A1  - Dieringer, Matthias A.
A1  - Winter, Lukas
A1  - Özerdem, Celal
A1  - Rieger, Jan
A1  - Kellmann, Peter
A1  - Santoro, Davide
A1  - Lindel, Tomasz D.
A1  - Frauenrath, Tobias
A1  - Pfeiffer, Harald
A1  - Niendorf, Thoralf
T1  - Modular 32-channel transceiver coil array for cardiac MRI at 7.0T
JF  - Magnetic Resonance in Medicine
N2  - Purpose
To design and evaluate a modular transceiver coil array with 32 independent channels for cardiac MRI at 7.0T.

Methods
The modular coil array comprises eight independent building blocks, each containing four transceiver loop elements. Numerical simulations were used for B1+ field homogenization and radiofrequency (RF) safety validation. RF characteristics were examined in a phantom study. The array's suitability for accelerated high spatial resolution two-dimensional (2D) FLASH CINE imaging of the heart was examined in a volunteer study.

Results
Transmission field adjustments and RF characteristics were found to be suitable for the volunteer study. The signal-to-noise intrinsic to 7.0T together with the coil performance afforded a spatial resolution of 1.1 × 1.1 × 2.5 mm3 for 2D CINE FLASH MRI, which is by a factor of 6 superior to standardized CINE protocols used in clinical practice at 1.5T. The 32-channel transceiver array supports one-dimensional acceleration factors of up to R = 4 without impairing image quality significantly.

Conclusion
The modular 32-channel transceiver cardiac array supports accelerated and high spatial resolution cardiac MRI. The array is compatible with multichannel transmission and provides a technological basis for future clinical assessment of parallel transmission techniques at 7.0T.
Y1  - 2013
U6  - https://doi.org/10.1002/mrm.24903
SN  - 1522-2594
VL  - 72
IS  - 1
SP  - 276
EP  - 290
PB  - Wiley-Liss
CY  - New York
ER  -