{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T17:14:01Z","timestamp":1787505241493,"version":"build-2736575974"},"reference-count":44,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2015,4,29]],"date-time":"2015-04-29T00:00:00Z","timestamp":1430265600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Magnetic Resonance in Med"],"published-print":{"date-parts":[[2016,3]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The inhibitory neurotransmitter \u03b3\u2010aminobutyric acid (GABA) can be measured in vivo using edited magnetic resonance spectroscopy (MRS), but quantification suffers from contamination by macromolecules (MM). It is possible to suppress this contamination using symmetric editing, but this procedure potentially compromises reliability of the GABA measurement. The aim of this study was to compare the repeatability of GABA\u2010edited MRS with and without MM suppression.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      GABA\u2032 (non\u2010MM contaminated) and GABA\u2032+MM (MM\u2010contaminated) concentration was measured in the occipital lobe (OCC) and anterior cingulate (AC) using symmetric and standard editing (\n                      <jats:italic>n<\/jats:italic>\n                      = 15). Each method was performed twice in each region.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Within\u2010participant coefficients of variation for each technique were 4.0% (GABA\u2032+MM) and 8.6% (GABA\u2032) in the OCC and 14.8% (GABA\u2032+MM) and 12.6% (GABA\u2032) in the AC. Intraclass correlation coefficients were better for the suppression method than standard editing in both the OCC (0.72 versus 0.67) and AC (0.41 versus 0.16). These findings were replicated in the OCC of a second cohort (\n                      <jats:italic>n<\/jats:italic>\n                      = 15).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Symmetric suppression is shown to be comparable in repeatability to standard GABA\u2010editing. Measuring a purer quantification of GABA becomes increasingly important as more research is conducted on links between GABA concentration, pathology and healthy behavior. Magn Reson Med 75:946\u2013953, 2016. \u00a9 2015 Wiley Periodicals, Inc.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/mrm.25699","type":"journal-article","created":{"date-parts":[[2015,4,29]],"date-time":"2015-04-29T07:09:20Z","timestamp":1430291360000},"page":"946-953","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["Comparison of the repeatability of GABA\u2010edited magnetic resonance spectroscopy with and without macromolecule suppression"],"prefix":"10.1002","volume":"75","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0349-3782","authenticated-orcid":false,"given":"Mark","family":"Mikkelsen","sequence":"first","affiliation":[{"name":"CUBRIC, School of Psychology Cardiff University Cardiff United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krish D.","family":"Singh","sequence":"additional","affiliation":[{"name":"CUBRIC, School of Psychology Cardiff University Cardiff United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Petroc","family":"Sumner","sequence":"additional","affiliation":[{"name":"CUBRIC, School of Psychology Cardiff University Cardiff United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C. 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