{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,12]],"date-time":"2025-06-12T04:05:48Z","timestamp":1749701148526,"version":"3.41.0"},"reference-count":43,"publisher":"American Veterinary Medical Association (AVMA)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ajvr"],"published-print":{"date-parts":[[2022,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:sec>\n<jats:title>OBJECTIVE<\/jats:title>\n<jats:p>To assess the usefulness of magnetic resonance urography (MRU) for the visualization of nondilated renal pelvises and ureters in dogs and to compare our findings for MRU versus CT urography (CTU).<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>ANIMALS<\/jats:title>\n<jats:p>9 healthy Beagles.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>PROCEDURES<\/jats:title>\n<jats:p>Dogs underwent CTU, static-fluid MRU, and excretory MRU, with \u2265 7 days between procedures. Contrast medium was administered IV during CTU and excretory MRU, whereas urine in the urinary tract was an intrinsic contrast medium for static-fluid MRU. For each procedure, furosemide (1 mg\/kg, IV) was administered, and reconstructed dorsal plane images were acquired 3 minutes (n = 2) and 7 minutes (2) later. Images were scored for visualization of those structures and for image quality, diameters of renal pelvises and ureters were measured, and results were compared across imaging techniques.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>RESULTS<\/jats:title>\n<jats:p>Excretory MRU and CTU allowed good visualization of the renal pelvises and ureters, whereas static-fluid MRU provided lower visualization of the ureters. Distention of the renal pelvises and ureters was good in excretory MRU and CTU. Distention of the ureters in static-fluid MRU was insufficient compared with that in CTU and excretory MRU. Distinct artifacts were not observed in CTU and excretory MRU images. Static-fluid MRU images had several mild motion artifacts.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>CLINICAL RELEVANCE<\/jats:title>\n<jats:p>Our findings indicated that excretory MRU with furosemide administration was useful for visualizing nondilated renal pelvises and ureters of dogs in the present study. When performing MRU for the evaluation of dogs without urinary tract dilation, excretory MRU may be more suitable than static-fluid MRU.<\/jats:p>\n<\/jats:sec>","DOI":"10.2460\/ajvr.21.03.0041","type":"journal-article","created":{"date-parts":[[2021,12,21]],"date-time":"2021-12-21T16:28:05Z","timestamp":1640104085000},"page":"229-238","source":"Crossref","is-referenced-by-count":1,"title":["Comparison of static-fluid or excretory magnetic resonance urography with computed tomography urography for visualization of nondilated renal pelvises and ureters in healthy Beagles"],"prefix":"10.2460","volume":"83","author":[{"given":"Sang-Kwon","family":"Lee","sequence":"first","affiliation":[{"name":"College of Veterinary Medicine, Kyungpook National University, Daegu, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seongjae","family":"Hyeong","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University, Gwangju, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soyeon","family":"Kim","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University, Gwangju, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chang-Yeop","family":"Jeon","sequence":"additional","affiliation":[{"name":"National Primate Research Center (NPRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kyung-Seob","family":"Lim","sequence":"additional","affiliation":[{"name":"Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yeung","family":"Bae Jin","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jihye","family":"Choi","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Kyungpook National University, Daegu, South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"issue":"2","key":"ref1","series-title":"Vet Clin North Am Small Anim Pract.","first-page":"261","article-title":"Diagnostic imaging of the urinary tract","volume":"49","author":"Rademacher N","year":"2019","unstructured":"Rademacher N. 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