{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T00:35:17Z","timestamp":1777509317558,"version":"3.51.4"},"reference-count":34,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2025,2,4]],"date-time":"2025-02-04T00:00:00Z","timestamp":1738627200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Acta Radiol"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Little is known of the influence of scanner field strength on quantitative diffusivity variables, especially kurtosis in healthy ovaries.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate the influence of scanner field strength on quantitative diffusion variables in pelvic MRI of the ovaries.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>\n                      This prospective, single-centre study consisted of repeated 1.5-T and 3-T examinations in 30 female volunteers (mean age=27.9 years, age range=20.3\u201345.2 years) from July 2017 to September 2019. Multi b-value DWI 0, 50, 100, 800, 1500, 2000\u2005s\/mm\n                      <jats:sup>2<\/jats:sup>\n                      was acquired over three timepoints during the menstrual cycle. Ovaries were segmented at b\u2009=\u20091500\u2005s\/mm\n                      <jats:sup>2<\/jats:sup>\n                      . Median apparent diffusion coefficient (ADC) and advanced kurtosis parameters D\n                      <jats:sub>app<\/jats:sub>\n                      and K\n                      <jats:sub>app<\/jats:sub>\n                      were calculated. Statistical analysis was performed with the variations of diffusivity variables being compared between 1.5-T and 3-T MRI using a Mann\u2013Whitney rank-sum test.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Median ADC and D\n                      <jats:sub>app<\/jats:sub>\n                      (\u00b5m\u00b2\/ms) did not statistically differ. Median ADC were 1.509 (range=1.371\u20131.610), 1.619 (range=1.463\u20131.747), and 1.511 (range=1.423\u20131.639) at 1.5\u2005T; 1.542 (range=1.428\u20131.682), 1.658 (range=1.510\u20131.806), and 1.572 (range=1.455\u20131.709) at 3\u2005T (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.14, 0.19, and 0.07), whereas median D\n                      <jats:sub>app<\/jats:sub>\n                      were 2.024 (range=1.913\u20132.152), 2.192 (range=2.010\u20132.327), and 2.045 (range=1.958\u20132.170) at 1.5\u2005T; 2.013 (range=1.952\u20132.188), 2.179 (range=2.018\u20132.327), and 2.082 (range=1.959\u20132.194) at 3\u2005T (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.77, 0.99, and 0.34) for timepoints 1, 2, and 3, respectively. Statistical comparison of K\n                      <jats:sub>app<\/jats:sub>\n                      revealed significant differences for all timepoints: 0.629 (range=0.595\u20130.652), 0.604 (range=0.574\u20130.651), and 0.622 (range=0.581\u20130.664) at 1.5\u2005T; 0.601 (range=0.563\u20130.626), 0.567 (range=0.526\u20130.633), and 0.599 (range=0.541\u20130.650) at 3\u2005T (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001, 0.005, and 0.03).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Diffusivity mapping in the ovaries provides similar absolute median diffusion values, but statistically significant differences in absolute kurtosis values between 1.5\u2005T and 3\u2005T.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02841851241313021","type":"journal-article","created":{"date-parts":[[2025,2,5]],"date-time":"2025-02-05T01:18:02Z","timestamp":1738718282000},"page":"512-520","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of field strength on quantitative parameters and feature stability in the assessment of the ovaries using 1.5-T and 3-T MRI"],"prefix":"10.1177","volume":"66","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5997-5254","authenticated-orcid":false,"given":"Theresa","family":"Mokry","sequence":"first","affiliation":[{"name":"Clinic for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany"},{"name":"Department of Radiology, German Cancer Research Center, Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Judith","family":"Pantke","sequence":"additional","affiliation":[{"name":"Institut for Diagnostic and Interventional Radiology, University Hospital Hannover, Hannover, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hans-Ulrich","family":"Kauczor","sequence":"additional","affiliation":[{"name":"Clinic for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frederik B","family":"Laun","sequence":"additional","affiliation":[{"name":"Institut for Radiology, University Hospital Erlangen, Erlangen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Heinz-Peter","family":"Schlemmer","sequence":"additional","affiliation":[{"name":"Department of Radiology, German Cancer Research Center, Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tristan A","family":"Kuder","sequence":"additional","affiliation":[{"name":"Department of Physics, German Canter Research Center, Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sebastian","family":"Bickelhaupt","sequence":"additional","affiliation":[{"name":"Institut for Radiology, University Hospital Erlangen, Erlangen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,2,4]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ygyno.2007.02.030"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinimag.2015.06.008"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2361041618"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-009-1584-2"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.25479"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.26293"},{"key":"e_1_3_3_8_2","doi-asserted-by":"crossref","unstructured":"Bickelhaupt S Steudle F Paech D et al. 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