{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T23:41:49Z","timestamp":1778629309800,"version":"3.51.4"},"reference-count":15,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2005,7,26]],"date-time":"2005-07-26T00:00:00Z","timestamp":1122336000000},"content-version":"vor","delay-in-days":55,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2005,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The aims of this study were to compare the performance of a mechanical radial endosonoscope and an endorectal electronic probe and to evaluate the value of hydrogen peroxide (H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub>) injection in the diagnosis of perianal fistulas.<\/jats:p><\/jats:sec><jats:sec><jats:title>Patients and Methods<\/jats:title><jats:p>Sixty\u2010one patients underwent clinical and endosonographic studies for suspected perianal fistulas or abscesses. Endosonography was performed using two instruments: a mechanical radial endosonoscope (Olympus GF\u2010UM20) and an electronic endorectal probe (Hitachi EUP\u2010R53). The patients were re\u2010examined during and following H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> injection using both systems.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Thirty\u2010seven fistulous tracts were visualized with the electronic endorectal probe versus only 9 with the mechanical radial endosonoscope. Four patients had anal stenosis, precluding the use of the larger electronic probe. Three fistulas were detected in these patients using the mechanical radial endosonoscope. H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> injection was not feasible in 26 patients (43%). Visualization of 11 (31%) fistulas improved after administration of H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub>. Six fistulous tracts not detected before H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> administration were clearly visualized during injection and for several minutes thereafter.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Work\u2010up of perianal fistula should be preferably performed using the endorectal electronic probe. However, the mechanical radial endoscope is preferred in patients with anal stricture. H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> injection should become an integral part of every sonographic study of perianal fistulas. \u00a9 2005 Wiley Periodicals, Inc. <jats:italic>J Clin Ultrasound<\/jats:italic> <jats:bold>33<\/jats:bold>:226\u2013232, 2005<\/jats:p><\/jats:sec>","DOI":"10.1002\/jcu.20120","type":"journal-article","created":{"date-parts":[[2005,7,26]],"date-time":"2005-07-26T23:24:07Z","timestamp":1122420247000},"page":"226-232","source":"Crossref","is-referenced-by-count":11,"title":["Endosonographic evaluation of perianal fistulas and abscesses: comparison of two instruments and assessment of the role of hydrogen peroxide injection"],"prefix":"10.1002","volume":"33","author":[{"given":"Yaakov","family":"Maor","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yehuda","family":"Chowers","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moshe","family":"Koller","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Oded","family":"Zmora","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon","family":"Bar\u2010Meir","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benjamin","family":"Avidan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,7,26]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.200.2.8685344"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0009-9260(98)80053-6"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2168.1999.01020.x"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1053\/gast.2001.28676"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.1800780418"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1136\/gut.35.3.391"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02234179"},{"key":"e_1_2_1_9_2","first-page":"126","volume-title":"Endoscopic Ultrasonography","author":"Bhutani MS","year":"2001"},{"key":"e_1_2_1_10_2","first-page":"175","volume-title":"Endosonography in Gastroenterology","author":"Paolucci V","year":"1999"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02052266"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02239437"},{"key":"e_1_2_1_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02236633"},{"key":"e_1_2_1_14_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiographics.21.suppl_1.g01oc13s173"},{"key":"e_1_2_1_15_2","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1002\/jcu.10042","article-title":"Contrast\u2010enhanced endosonography for the diagnosis of anal and anovaginal fistulas","volume":"30","author":"Sudol\u2010Szopi\u0144ska I","year":"2002","journal-title":"J Clin Ultrasound"},{"key":"e_1_2_1_16_2","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.1800630102"}],"container-title":["Journal of Clinical Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjcu.20120","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.20120","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,17]],"date-time":"2023-11-17T06:15:41Z","timestamp":1700201741000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jcu.20120"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2005,6]]},"references-count":15,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2005,6]]}},"alternative-id":["10.1002\/jcu.20120"],"URL":"https:\/\/doi.org\/10.1002\/jcu.20120","archive":["Portico"],"relation":{},"ISSN":["0091-2751","1097-0096"],"issn-type":[{"value":"0091-2751","type":"print"},{"value":"1097-0096","type":"electronic"}],"subject":[],"published":{"date-parts":[[2005,6]]}}}