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In this numerical study, the in situ electric fields in infants induced by small\u2010sized gradient coils for a 1.5\u2009T MRI scanner were evaluated. The gradient coil set was specially designed for the efficient imaging of infants within a small\u2010bore (baby) scanner. The magnetic flux density and induced electric fields by the small <jats:italic>x<\/jats:italic>, <jats:italic>y<\/jats:italic>, <jats:italic>z<\/jats:italic> gradient coils in an infant model (8\u2010week\u2010old with a mass of 4.3\u2009kg) were computed using the scalar potential finite differences method. The gradient coils were driven by a 1\u2009kHz sinusoidal waveform and also a trapezoidal waveform with a 250\u2009\u00b5s rise time. The model was placed at different scan positions, including the head area (position I), chest area (position II), and body center (position III). It was found that the induced electric fields in most tissues exceeded the basic restrictions of the ICNIRP 2010 guidelines for both waveforms. The electric fields were similar in the region of interest for all coil types and model positions but different outside the imaging region. The <jats:italic>y<\/jats:italic>\u2010coil induced larger electric fields compared with the <jats:italic>x<\/jats:italic>\u2010 and <jats:italic>z<\/jats:italic>\u2010 coils. Bioelectromagnetics. 43:69\u201380, 2022. \u00a9 2021 Bioelectromagnetics Society.<\/jats:p>","DOI":"10.1002\/bem.22387","type":"journal-article","created":{"date-parts":[[2022,1,10]],"date-time":"2022-01-10T12:25:58Z","timestamp":1641817558000},"page":"69-80","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Exposure of Infants to Gradient Fields in a Baby MRI Scanner"],"prefix":"10.1002","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2761-8524","authenticated-orcid":false,"given":"Fangfang","family":"Tang","sequence":"first","affiliation":[{"name":"School of Information Technology and Electrical Engineering the University of Queensland, Brisbane  Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luca","family":"Giaccone","sequence":"additional","affiliation":[{"name":"Department of Energy Politecnico di Torino Torino Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiahao","family":"Hao","sequence":"additional","affiliation":[{"name":"College of Optoelectronic Engineering, Chongqing University  China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabio","family":"Freschi","sequence":"additional","affiliation":[{"name":"School of Information Technology and Electrical Engineering the University of Queensland, Brisbane  Australia"},{"name":"Department of Energy Politecnico di Torino Torino Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tongning","family":"Wu","sequence":"additional","affiliation":[{"name":"China Academy of Information and Communications Technology  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stuart","family":"Crozier","sequence":"additional","affiliation":[{"name":"School of Information Technology and Electrical Engineering the University of Queensland, Brisbane  Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Feng","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Information Technology and Electrical Engineering the University of Queensland, Brisbane  Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,1,10]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1088\/0031-9155\/57\/7\/1815"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TMAG.2015.2479297"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/TMAG.2010.2044393"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1051\/epjap\/2010009466"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/bem.21780"},{"key":"e_1_2_7_7_1","unstructured":"CommissionIEC.2002. 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