{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T04:12:55Z","timestamp":1777435975635,"version":"3.51.4"},"reference-count":27,"publisher":"Cambridge University Press (CUP)","issue":"11","license":[{"start":{"date-parts":[[2007,6,29]],"date-time":"2007-06-29T00:00:00Z","timestamp":1183075200000},"content-version":"unspecified","delay-in-days":4258,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Laryngol. Otol."],"published-print":{"date-parts":[[1995,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The obliteration of the frontal sinus via an osteoplastic approach is performed with the aim of achieving a permanent \u2018switching off\u2019 by final and conclusive clearing out. For this, freshly harvested abdominal fat has shown itself to be the best clinically. It is possible to demonstrate the vitality of fat transplanted into the frontal sinus without an operation i.e. by a macroscopical and histological examination using magnetic resonance imaging (MRI). The magnetic resonance examinations were carried out on a supraconductive 0.5 T Magnet (Gyroscan T.S.II, Philips Medicine Systems, Eindhoven, Netherlands) with a quadrature (square) head spool. We produced T<jats:sub>1<\/jats:sub>-weighted spin echo images (TR: 450\u2013550 ms; TE: 20\u201325 ms), T<jats:sub>2<\/jats:sub>-weighted fast spin echo images or in double-echo technique in transverse orientation (Turbo SE or TR: 2000\u20132500 ms; TE: 50\u201390 ms) and short tau inversion recovery (STIR) sequences for fat suppression (TJ: 140 ms; TR: 1400 ms; TE: 30 ms). The fat implanted into the frontal sinus of 11 patients aged 22\u201365 years, having undergone an osteoplastic frontal sinus operation with obliteration, was examined post-operatively by MRI. Objectives were the time-dependent distribution of portions of vital fatty or connective tissue, the eventual development of necroses or cysts as well as recurrences, inflammatory complications or re-epithelization of the frontal sinus four to 24 months postoperatively. In only six out of 11 cases was vital fatty tissue found. Fatty necrosis occurred five times, whereas in four cases a transformation into granulation tissue and in one case into connective tissue could be seen. All 11 patients were complaint-free. Long-term observations are needed to see if differences in the recurrence rate of frontal sinus disease are dependent on whether the implanted fat remains vital or necrosed and transformed.<\/jats:p>","DOI":"10.1017\/s0022215100132189","type":"journal-article","created":{"date-parts":[[2007,11,30]],"date-time":"2007-11-30T10:14:57Z","timestamp":1196417697000},"page":"1115-1119","source":"Crossref","is-referenced-by-count":13,"title":["Magnetic resonance imaging after frontal sinus surgery with fat obliteration"],"prefix":"10.1017","volume":"109","author":[{"given":"R.","family":"Keerl","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Weber","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Kahle","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W.","family":"Draf","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Constantinidis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Saha","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2007,6,29]]},"reference":[{"key":"S0022215100132189_ref023","doi-asserted-by":"publisher","DOI":"10.1016\/0007-1226(89)90205-1"},{"key":"S0022215100132189_ref019","first-page":"48","article-title":"Studies on bone transplantation in the frontal sinus of patients and dogs","volume":"5","author":"Sasaki","year":"1967","journal-title":"International Rhinology"},{"key":"S0022215100132189_ref022","doi-asserted-by":"crossref","first-page":"444","DOI":"10.1097\/00000637-198605000-00012","article-title":"Adipose tissue in plastic surgery","volume":"16","author":"Smahel","year":"1986","journal-title":"Annals of Plastic Surgery"},{"key":"S0022215100132189_ref021","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-197501000-00006"},{"key":"S0022215100132189_ref016","doi-asserted-by":"publisher","DOI":"10.1017\/S0022215100049884"},{"key":"S0022215100132189_ref014","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.1963.00750020721017"},{"key":"S0022215100132189_ref011","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.1991.01870160039005"},{"key":"S0022215100132189_ref008","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.168.3.3406412"},{"key":"S0022215100132189_ref007","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-198602000-00011"},{"key":"S0022215100132189_ref012","doi-asserted-by":"publisher","DOI":"10.1177\/000348946107000318"},{"key":"S0022215100132189_ref026","doi-asserted-by":"publisher","DOI":"10.2500\/105065894782537343"},{"key":"S0022215100132189_ref020","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-197406000-00017"},{"key":"S0022215100132189_ref018","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-196406000-00005"},{"key":"S0022215100132189_ref003","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.1955.00720020634002"},{"key":"S0022215100132189_ref027","first-page":"358","article-title":"Aspects of frontal sinus surgery. 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