{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T17:28:31Z","timestamp":1775582911946,"version":"3.50.1"},"reference-count":57,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,14]],"date-time":"2024-06-14T00:00:00Z","timestamp":1718323200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Objectives: Anemia is a frequent multifactorial co-morbidity in end-stage kidney disease (ESKD) associated with morbidity and poor QoL. Apart from insufficient erythropoietin formation, iron deficiency (ID) contributes to anemia development. Identifying patients in need of iron supplementation with current ID definitions is difficult since no good biomarker is available to detect actual iron needs. Therefore, new diagnostic tools to guide therapy are needed. Methods: We performed a prospective cohort study analyzing tissue iron content with MRI-based R2*-relaxometry in 20 anemic ESKD patients and linked it with iron biomarkers in comparison to 20 otherwise healthy individuals. Results: ESKD patients had significantly higher liver (90.1 s\u22121 vs. 36.1 s\u22121, p &lt; 0.001) and spleen R2* values (119.8 s\u22121 vs. 19.3 s\u22121, p &lt; 0.001) compared to otherwise healthy individuals, while their pancreas and heart R2* values did not significantly differ. Out of the 20 ESKD patients, 17 had elevated spleen and 12 had elevated liver R2* values. KDIGO guidelines (focusing on serum iron parameters) would recommend iron supplementation in seven patients with elevated spleen and four patients with elevated liver R2* values. Conclusions: These findings highlight that liver and especially spleen iron concentrations are significantly higher in ESKD patients compared to controls. Tissue iron overload diverged from classical iron parameters suggesting need of iron supplementation. Measurement of MRI-guided tissue iron distribution might help guide treatment of anemic ESKD patients.<\/jats:p>","DOI":"10.3390\/jcm13123487","type":"journal-article","created":{"date-parts":[[2024,6,14]],"date-time":"2024-06-14T08:02:26Z","timestamp":1718352146000},"page":"3487","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Tissue Iron Distribution in Anemic Patients with End-Stage Kidney Disease: Results of a Pilot Study"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7849-2971","authenticated-orcid":false,"given":"Lukas","family":"Lanser","sequence":"first","affiliation":[{"name":"Department of Internal Medicine II, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michaela","family":"Plaikner","sequence":"additional","affiliation":[{"name":"Department of Radiology, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Josia","family":"Fauser","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine V, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Verena","family":"Petzer","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine V, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1558-6134","authenticated-orcid":false,"given":"Sara","family":"Denicol\u00f2","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine IV, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Haschka","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine II, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1064-0098","authenticated-orcid":false,"given":"Hannes","family":"Neuwirt","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine IV, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kiril","family":"Stefanow","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine IV, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7896-2600","authenticated-orcid":false,"given":"Michael","family":"Rudnicki","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine IV, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6953-935X","authenticated-orcid":false,"given":"Christian","family":"Kremser","sequence":"additional","affiliation":[{"name":"Department of Radiology, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benjamin","family":"Henninger","sequence":"additional","affiliation":[{"name":"Department of Radiology, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0709-2158","authenticated-orcid":false,"given":"Guenter","family":"Weiss","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine II, Medical University of Innsbruck, 6020 Innsbruck, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"125","DOI":"10.1093\/ndt\/11.supp2.125","article-title":"Quality of life in dialysis patients. 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