{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T07:49:24Z","timestamp":1791791364061,"version":"4.3.4"},"reference-count":18,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T00:00:00Z","timestamp":1791763200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T00:00:00Z","timestamp":1791763200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Vet Radiology Ultrasound"],"published-print":{"date-parts":[[2026,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    This study aimed to determine, using ultrasonography, the width of the penile urethral lumen in Texel lambs and to compare two types of linear probes. Thirty healthy, uncastrated lambs kept in confinement for fattening were subjected to ultrasound examinations at 60, 120, and 150 days of age. The penile urethra was examined at four sites: proximal urethra, sigmoid flexure, distal to the sigmoid flexure, and distal urethra. The images were obtained in B\u2010mode with cross sections using two types of linear probes: for external use (external probe: EP; 13\u00a0MHz) and for transrectal use in large animals (rectal probe: RP; 10\u00a0MHz). Data were analyzed using a two\u2010way repeated\u2010measures ANOVA. The image quality was superior when using EP. The urethra was identified as a circular or elliptical structure with a slightly hyperechoic wall and an anechoic lumen. At the four anatomical sites, the width of the urethra increased with age (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0&lt;\u00a00.001), and the values measured using RP were higher (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0&lt;\u00a00.05). With EP, the lumen width was 1.0\u20123.4\u00a0mm in the proximal urethra, 0.6\u20123.3\u00a0mm in the sigmoid flexure, 0.5\u20122.9\u00a0mm in the region distal to the sigmoid flexure, and 0.7\u20122.5\u00a0mm in the distal urethra; with RP, these values were 0.8\u20123.9, 0.6\u20123.3, 0.7\u20123.3, and 0.8\u20122.9\u00a0mm, respectively. Ultrasound examination of the penile urethra is feasible, and the values obtained for the lumen width can be accepted as physiological standards for comparison. This examination can be performed with a linear RP in large animals.\n                  <\/jats:p>","DOI":"10.1111\/vru.70244","type":"journal-article","created":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T07:36:21Z","timestamp":1791790581000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Ultrasound Examination of the Penile Urethra in Healthy Non\u2010Castrated Texel Lambs Confined for Fattening"],"prefix":"10.1111","volume":"67","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-1346-9739","authenticated-orcid":false,"given":"Marina","family":"Franco","sequence":"first","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5503-7180","authenticated-orcid":false,"given":"Lisandra de Camargo","family":"Campos","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1429-9942","authenticated-orcid":false,"given":"Mayara Cardoso dos","family":"Anjos","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8349-1436","authenticated-orcid":false,"given":"Nicoly Nayana","family":"Marcom","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1415-8920","authenticated-orcid":false,"given":"Emelly Selmer","family":"Moura","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-8470-119X","authenticated-orcid":false,"given":"Ariadne Sol\u00e2ngela","family":"Stapait","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2050-8664","authenticated-orcid":false,"given":"Priscilla Fajardo Valente","family":"Pereira","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1180-703X","authenticated-orcid":false,"given":"J\u00falio Augusto Naylor","family":"Lisb\u00f4a","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinics, Universidade Estadual de Londrina Campus Universit\u00e1rio  Londrina Paran\u00e1 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Tract Ultrasonography in Normal Rams and in Rams with Obstructive Urolithiasis","volume":"33","author":"Braun U.","year":"1992","journal-title":"Canadian Veterinary Journal"},{"key":"e_1_2_13_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cvfa.2020.10.002"},{"key":"e_1_2_13_18_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13028\u2010017\u20100283\u20102"},{"key":"e_1_2_13_19_1","first-page":"1","volume-title":"Clinical Biochemistry of Domestic Animals","author":"Farver T. 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