{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,5]],"date-time":"2026-11-05T23:47:42Z","timestamp":1793922462176,"version":"4.8.0"},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2000,5,1]],"date-time":"2000-05-01T00:00:00Z","timestamp":957139200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2000,5,1]]},"abstract":"<jats:sec>\n<jats:title>OBJECTIVES<\/jats:title>\n<jats:p>To calculate sinus and bone graft volumes and vertical bone heights from sequential magnetic resonance imaging (MRI) examinations in patients undergoing a sinus lift operation.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>METHODS<\/jats:title>\n<jats:p>MRI scans were obtained pre-operatively and at 10 days and 10 weeks post-operatively, using a 0.95 tesla MRI scanner and a three-dimensional (3D) magnetisation prepared, rapid acquisition gradient-echo (MP-RAGE) sequence.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>RESULTS<\/jats:title>\n<jats:p>Estimates of the bone graft volumes required for a desired vertical bone height were made from the pre-operative MRI scan. Measurements of the graft volumes and bone heights actually achieved were made from the post-operative scans. The MRI appearance of the graft changed between the 10 day and 10 week scans.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>CONCLUSIONS<\/jats:title>\n<jats:p>We have proposed a technique which has the potential to give the surgeon an estimate of the optimum volume of graft for the sinus lift operation from the pre-operative MRI scan alone and demonstrated its application in a single patient. Changes in the sequential MRI appearance of the graft are consistent with replacement of fluid by a matrix of trabecular bone.<\/jats:p>\n<\/jats:sec>","DOI":"10.1038\/sj\/dmfr\/4600518","type":"journal-article","created":{"date-parts":[[2024,10,18]],"date-time":"2024-10-18T10:46:33Z","timestamp":1729248393000},"page":"154-158","source":"Crossref","is-referenced-by-count":2,"title":["Assessment of maxillary sinus volume for the sinus lift operation by three-dimensional magnetic resonance imaging"],"prefix":"10.1093","volume":"29","author":[{"given":"C F","family":"Gray","sequence":"first","affiliation":[{"name":"Department of Bio-Medical Physics and Bio-Engineering , University of Aberdeen, Foresterhill, Aberdeen, Scotland, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R T","family":"Staff","sequence":"additional","affiliation":[{"name":"Department of Bio-Medical Physics and Bio-Engineering , University of Aberdeen, Foresterhill, Aberdeen, Scotland, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T W","family":"Redpath","sequence":"additional","affiliation":[{"name":"Department of Bio-Medical Physics and Bio-Engineering , University of Aberdeen, Foresterhill, Aberdeen, Scotland, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G","family":"Needham","sequence":"additional","affiliation":[{"name":"Department of Radiology , Aberdeen Royal Infirmary, Foresterhill, Aberdeen, Scotland, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N M","family":"Renny","sequence":"additional","affiliation":[{"name":"Maxillofacial Department , Aberdeen Royal Infirmary, Foresterhill, Aberdeen, Scotland, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2014,1,28]]},"container-title":["Dentomaxillofacial Radiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/dmfr\/article-pdf\/29\/3\/154\/53520202\/sj_dmfr_4600518.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/dmfr\/article-pdf\/29\/3\/154\/53520202\/sj_dmfr_4600518.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,18]],"date-time":"2024-10-18T14:23:20Z","timestamp":1729261400000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/dmfr\/article\/29\/3\/154\/7267290"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2000,5,1]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2000,5,1]]}},"URL":"https:\/\/doi.org\/10.1038\/sj\/dmfr\/4600518","relation":{},"ISSN":["0250-832X","1476-542X"],"issn-type":[{"value":"0250-832X","type":"print"},{"value":"1476-542X","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2000,5,1]]},"published":{"date-parts":[[2000,5,1]]}}}