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A low\u2010latency reconstruction that combines all echoes was available for online visualization. An offline reconstruction provided water and fat RT\u2010MRI in two steps: (1) image reconstruction with spatiotemporally constrained reconstruction (STCR) and (2) water\/fat separation with hierarchical iterative decomposition of water and fat with echo asymmetry and least\u2010squares estimation (HIDEAL). In healthy volunteers, spiral OIOI was acquired in the wrist during a radial\u2010to\u2010ulnar deviation maneuver, in the heart without breath\u2010hold and cardiac gating, and in the lower abdomen during free\u2010breathing for visualizing small bowel motility.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We demonstrate successful water\/fat separated RT\u2010MRI for all tested applications. In the wrist, resulting images provided clear depiction of ligament gaps and their interactions during the radial\u2010to\u2010ulnar deviation maneuver. In the heart, water\/fat RT\u2010MRI depicted epicardial fat, provided improved delineation of epicardial coronary arteries, and provided high blood\u2010myocardial contrast for ventricular function assessment. In the abdomen, water\u2010only RT\u2010MRI captured small bowel mobility clearly with improved water\u2010fat contrast.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>We have demonstrated a novel and flexible bSSFP spiral OIOI sequence at 0.55T that can provide water\/fat separated RT\u2010MRI with a variety of application\u2010specific temporal resolution and spatial resolution requirements.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/mrm.29885","type":"journal-article","created":{"date-parts":[[2023,10,11]],"date-time":"2023-10-11T23:32:04Z","timestamp":1697067124000},"page":"649-659","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["<scp>Real\u2010time<\/scp>\n                    water\/fat imaging at 0.\n                    <scp>55T<\/scp>\n                    with spiral\n             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