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Group differences were assessed using Kruskal\u2013Wallis and Dunn\u2013Bonferroni tests. Spearman correlation, age- and BMI-adjusted partial correlations and intraclass correlation coefficients (ICCs) were computed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Hb showed a positive correlation with FF (rho\u2009=\u20090.386,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) and a negative correlation with ADC (rho\u2009=\u2009\u2009\u2212\u20090.467,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). RDW-CV correlated negatively with FF (rho\u2009=\u2009\u2009\u2212\u20090.341,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001) and positively with ADC (rho\u2009=\u20090.300,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.004). RDW-SD showed a weak positive correlation with ADC (rho\u2009=\u20090.208,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.045). After age adjustment, RDW-SD correlated with FF (partial rho\u2009=\u2009\u2009\u2212\u20090.350,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001). The initially borderline RDW-SD\u2013ADC association became significant after age (partial rho\u2009=\u20090.279,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.007) and BMI adjustment (partial rho\u2009=\u20090.219,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.035). FF and ADC differed across groups (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). FF was lowest in Group 4 (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). ADC was higher in Group 4 than in Groups 1 and 2 (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009\u2264\u20090.001) and higher in Group 3 than Group 1 (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.035). All ICC values exceeded 0.90.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Quantitative MRI parameters reflect anaemia-related lumbar bone marrow microstructural alterations.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00256-026-05251-x","type":"journal-article","created":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T19:18:37Z","timestamp":1779131917000},"page":"2325-2334","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["MRI-based biomarkers of bone marrow adaptation in anemia: A quantitative evaluation"],"prefix":"10.1007","volume":"55","author":[{"given":"Duygu","family":"Erkal","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehmet","family":"Tonkaz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Serdar","family":"Aslan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00f6khan","family":"Tonkaz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,5,18]]},"reference":[{"key":"5251_CR1","unstructured":"Guideline on haemoglobin cutoffs to define anaemia in individuals and populations. 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The study was approved by the Ethics Committee of Giresun Education and Research Hospital (Decision number: 10.12.2025\/12). Due to the retrospective nature of the study, informed consent was waived.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}