B.L. van de Bank1,
Uzay E. Emir2, Vincent Oltman Boer3, Jack JA van Asten1,
Jannie P. Wijnen3, 4, H.E. Kan4, G. z2,
Dennis W. J. Klomp3, Tom W.J. Scheenen1, 5
1Radiology,
Radboud Nijmegen Nijmegen Medical Center, Nijmegen, Netherlands; 2Center
for Magnetic Resonance Research, Minneapolis, MN, United States; 3Radiology,
University Medical Center Utrecht, Utrecht, Netherlands; 4Radiology,
Leiden University Medical Center, Leiden, Netherlands; 5Erwin L.
Hahn Institute, Essen, Germany
The reproducibility and robustness of the semi-LASER sequence was investigated at 7T. Seven volunteers were scanned twice each at 4 different 7T systems (2 Siemens & 2 Philips). Excellent quality spectra were obtained from gray and white matter at all sites. The within-subject variations and hence within-institution variations were low, meaning that the technique is robust and reproducible. Few between-institution variations were found.