{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,6,6]],"date-time":"2024-06-06T10:01:25Z","timestamp":1717668085114},"reference-count":20,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2022,1,20]],"date-time":"2022-01-20T00:00:00Z","timestamp":1642636800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,1,20]],"date-time":"2022-01-20T00:00:00Z","timestamp":1642636800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"The National Key Research and Development Program of China","award":["2017YFC0109004","2018YFC1002202-2"],"award-info":[{"award-number":["2017YFC0109004","2018YFC1002202-2"]}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Med Imaging"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>Faster and motion robust magnetic resonance imaging (MRI) sequences are desirable in fetal brain MRI. T1-weighted images are essential for evaluating fetal brain development. We optimized the radial volumetric interpolated breath-hold examination (VIBE) sequence for qualitative T1-weighted images of the fetal brain with improved image contrast and reduced motion sensitivity.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Materials and methods<\/jats:title>\n                <jats:p>This was an institutional review board-approved prospective study. Thirty-five pregnant subjects underwent fetal brain scan at 3 Tesla MRI. T1-weighted images were acquired using a 3D radial VIBE sequence with flip angles of 6\u00ba, 9\u00ba, 12\u00ba, and 15\u00ba. T1-weighted images of Cartesian VIBE sequence were acquired in three of the subjects. Qualitative assessments including image quality and motion artifact severity were evaluated. The image contrast ratio between gray and white matter were measured. Interobserver reliability and intraobserver repeatability were assessed using intraclass correlation coefficient (ICC).<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Interobserver reliability and intraobserver repeatability universally revealed almost perfect agreement (ICC\u2009&gt;\u20090.800). Significant differences in image quality were detected in basal ganglia (<jats:italic>P<\/jats:italic>\u2009=\u20090.023), central sulcus (<jats:italic>P<\/jats:italic>\u2009=\u20090.028), myelination (<jats:italic>P<\/jats:italic>\u2009=\u20090.007) and gray matter (<jats:italic>P<\/jats:italic>\u2009=\u20090.023) among radial VIBE with flip angles 6\u00ba, 9\u00ba, 12\u00ba, 15\u00ba. Image quality at the 9\u00ba flip angle in radial VIBE was generally better than flip angle of 15\u00ba. Radial VIBE sequence with 9\u00ba flip angle of gray matter was significantly different by gestational age (GA) before and after 28\u00a0weeks (<jats:italic>P<\/jats:italic>\u2009=\u20090.036). Quantified image contrast was significantly different among different flip angles, consistent with qualitative analysis of image quality.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>Three-dimensional radial VIBE with 9\u00ba flip angle provides optimal, stable T1-weighted images of the fetal brain. Fetal brain structure and development can be evaluated using high-quality images obtained using this angle. However, different scanners will achieve different TRs and so the FA should be re-optimized each time a new protocol is employed.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12880-022-00737-1","type":"journal-article","created":{"date-parts":[[2022,1,20]],"date-time":"2022-01-20T14:07:09Z","timestamp":1642687629000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Optimization of the image contrast for the developing fetal brain using 3D radial VIBE sequence in 3\u00a0T magnetic resonance imaging"],"prefix":"10.1186","volume":"22","author":[{"given":"Yi","family":"Liao","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuesheng","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fenglin","family":"Jia","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhijun","family":"Ye","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gang","family":"Ning","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sai","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pei","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chuan","family":"Fu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qing","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shaoyu","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huapeng","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haibo","family":"Qu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,1,20]]},"reference":[{"key":"737_CR1","doi-asserted-by":"publisher","first-page":"507","DOI":"10.1016\/j.jare.2013.06.001","volume":"5","author":"SN Saleem","year":"2014","unstructured":"Saleem SN. 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