PMID- 24391022 OWN - NLM STAT- MEDLINE DCOM- 20150818 LR - 20220316 IS - 1522-2586 (Electronic) IS - 1053-1807 (Linking) VI - 41 IP - 1 DP - 2015 Jan TI - Validation of a golden angle radial sequence (GOLD) for abdominal T1 mapping during free breathing: demonstrating clinical feasibility for quantifying gastric secretion and emptying. PG - 157-64 LID - 10.1002/jmri.24530 [doi] AB - PURPOSE: To validate a magnetic resonance imaging sequence suitable for quantitative assessment of acid suppression by a proton pump inhibitor (PPI) on gastric secretion and emptying in clinical practice. METHODS: A golden angle radial sequence (GOLD) was validated in a series of in vitro and in vivo experiments and clinical feasibility was shown in two studies. The impact of free breathing and image plane orientation on T1 values was evaluated in a controlled in vivo experiment. The free-breathing GOLD sequence was compared against a standard breath-hold gradient echo sequence for gastric half emptying time in 23 subjects during a gastric emptying study. Pilot data from five subjects assessed the sensitivity of the GOLD sequence to detect changes in acid secretion volume produced by PPI treatment. RESULTS: The coronal free-breathing GOLD sequence and the axial breath-hold standard gradient echo sequence showed good agreement of the gastric half emptying time (6 +/- 3 min, P = 0.053). The GOLD sequence demonstrated sensitivity to reduction of gastric secretion volumes induced by PPI treatment (55 +/- 5 mL, P < 0.001). CONCLUSION: The GOLD sequence allowed for free breathing, multislice, combined imaging and T1 mapping of the stomach content. GOLD presents a promising multipurpose, noninvasive imaging tool for monitoring gastric function in clinical studies. CI - (c) 2014 Wiley Periodicals, Inc. FAU - Curcic, Jelena AU - Curcic J AD - Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland; Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland. FAU - Sauter, Matthias AU - Sauter M FAU - Schwizer, Werner AU - Schwizer W FAU - Fried, Michael AU - Fried M FAU - Boesiger, Peter AU - Boesiger P FAU - Steingoetter, Andreas AU - Steingoetter A LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PT - Validation Study DEP - 20140106 PL - United States TA - J Magn Reson Imaging JT - Journal of magnetic resonance imaging : JMRI JID - 9105850 RN - 0 (Contrast Media) RN - 0 (Organometallic Compounds) RN - 0 (Proton Pump Inhibitors) RN - 6HG8UB2MUY (Meglumine) RN - L0ND3981AG (gadoterate meglumine) SB - IM MH - Abdomen MH - Adult MH - Contrast Media MH - Feasibility Studies MH - Female MH - Gastric Emptying/*physiology MH - Gastric Juice/*metabolism MH - Gastroesophageal Reflux/drug therapy/*physiopathology MH - Gastrointestinal Tract/drug effects/*physiopathology MH - Humans MH - Image Enhancement MH - Image Interpretation, Computer-Assisted/methods MH - Magnetic Resonance Imaging/*methods MH - Male MH - Meglumine MH - Middle Aged MH - Organometallic Compounds MH - Proton Pump Inhibitors/therapeutic use MH - Respiration MH - Sensitivity and Specificity MH - Single-Blind Method OTO - NOTNLM OT - T1 mapping OT - gastric secretion OT - gastroesophageal reflux disease OT - golden angle OT - proton pump inhibitors EDAT- 2014/01/07 06:00 MHDA- 2015/08/19 06:00 CRDT- 2014/01/07 06:00 PHST- 2013/07/16 00:00 [received] PHST- 2013/11/14 00:00 [accepted] PHST- 2014/01/07 06:00 [entrez] PHST- 2014/01/07 06:00 [pubmed] PHST- 2015/08/19 06:00 [medline] AID - 10.1002/jmri.24530 [doi] PST - ppublish SO - J Magn Reson Imaging. 2015 Jan;41(1):157-64. doi: 10.1002/jmri.24530. Epub 2014 Jan 6.