{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T14:45:48Z","timestamp":1786977948904,"version":"build-2736575974"},"reference-count":15,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2002,2,19]],"date-time":"2002-02-19T00:00:00Z","timestamp":1014076800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2002,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>We assessed whether contrast\u2010enhanced anal endosonography (AES) with hydrogen peroxide improves the identification of anal fistulas and their internal openings compared with non\u2010contrast AES.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The study group comprised 12 patients who had various types of anal fistulas with visible external openings. AES was performed before and about 15 seconds after injection of 1 ml of 3% hydrogen peroxide into the fistula tract through the external opening.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Both contrast and non\u2010contrast AES revealed 7 transsphincteric, 2 intersphincteric, 1 suprasphincteric, and 2 anovaginal fistulas. Simple tracts were found in 8 cases and complex tracts in 4 cases on non\u2010contrast AES. Contrast\u2010enhanced AES revealed 9 simple and 3 complex fistulas. One fistula that appeared complex on the non\u2010contrast study appeared simple after contrast agent administration. Contrast\u2010enhanced AES demonstrated more internal openings than non\u2010contrast AES did. Surgery confirmed 11 of the fistulas; an internal opening could not be located surgically for the other tract.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Contrast\u2010enhanced AES appears to be superior to non\u2010contrast AES in the preoperative assessment of anal and anovaginal fistulas and in demonstrating and locating their internal openings. \u00a9 2002 Wiley Periodicals, Inc. J Clin Ultrasound 30:145\u2013150, 2002; DOI 10.1002\/jcu.10042<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jcu.10042","type":"journal-article","created":{"date-parts":[[2002,8,25]],"date-time":"2002-08-25T19:44:07Z","timestamp":1030304647000},"page":"145-150","source":"Crossref","is-referenced-by-count":46,"title":["Contrast\u2010Enhanced endosonography for the diagnosis of anal and anovaginal fistulas"],"prefix":"10.1002","volume":"30","author":[{"given":"Iwona","family":"Sudo\u0142\u2010Szopi\u0144ska","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wies\u0142aw","family":"Jakubowski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marek","family":"Szczepkowski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2002,2,19]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/gut.35.3.391"},{"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":"10.1002\/bjs.1800630102"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.1800780418"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02234179"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02052266"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2168.2000.01338.x"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.200.2.8685344"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02239437"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02054416"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0009-9260(05)82906-X"},{"key":"e_1_2_1_13_2","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.167.3.8751692"},{"key":"e_1_2_1_14_2","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.1800831022"},{"key":"e_1_2_1_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02236703"},{"key":"e_1_2_1_16_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.191.2.8153337"}],"container-title":["Journal of Clinical Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjcu.10042","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.10042","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,18]],"date-time":"2023-11-18T03:51:46Z","timestamp":1700279506000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jcu.10042"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,2,19]]},"references-count":15,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2002,3]]}},"alternative-id":["10.1002\/jcu.10042"],"URL":"https:\/\/doi.org\/10.1002\/jcu.10042","archive":["Portico"],"relation":{},"ISSN":["0091-2751","1097-0096"],"issn-type":[{"value":"0091-2751","type":"print"},{"value":"1097-0096","type":"electronic"}],"subject":[],"published":{"date-parts":[[2002,2,19]]}}}