Number of the records: 1
Robust, Efficient, and Flexible Water Suppression for In Vivo Proton MRS
- 1.
SYSNO ASEP 0205337 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Robust, Efficient, and Flexible Water Suppression for In Vivo Proton MRS Author(s) Starčuk jr., Zenon (UPT-D) RID, ORCID, SAI
Starčuk, Zenon (UPT-D) RID
Mlynárik, V. (AT)
Gruber, S. (AT)
Horký, Jaroslav (UPT-D) RID
Moser, E. (AT)Source Title 2nd Krakow-Winnipeg Workshop on Biomedical Application of MRI and MRS. - Krakow : Komitet Badaň Naukovych, 2000 Pages s. 36 Number of pages 1 s. Action Biomedical Application of MRI and MRS /2./ - Krakow-Winnipeg Workshop Event date 01.10.2000-04.10.2000 VEvent location Krakow Country PL - Poland Language eng - English Country PL - Poland Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering CEZ AV0Z2065902 - UPT-D Annotation Quantitation of in vivo 1H MR spectra can be severely hampered by insuffisient suppresion of water signals, which may be related to the dispersion of water T1 relaxation times and to B1 field inhomogenity, especially if a transmit/receive surface coil is used. Variable flip-angle methods WET and VAPOR provide excellent T1 insensitivity and low SAR, but B1 sensitivity is still a problem with simple surface coils. Outer volume suppresion (OVS) may be desirable if considerable SAR increase is acceptable. SWAMP, flipping the water magnetization by transition region of adiabatic inversion pulses, achieves excellent B1 insensitivity, but at the expense of much higher SAR, and either the interpulse delays are too short for sufficient gradient crushers or OVS, or its efficiency suffers from T1 sensitivity. we propose a superior type of methods, related to both mentioned classes. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2001
Number of the records: 1