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Kidney length and diameter were measured and compared with the aorta\/kidney ratio. Alterations in flow were measured using the flow velocity (cm\/s) and resistance index (RI). Renal function was assessed by serum biochemical examination (urea, creatine, total proteins, albumin, and globulin) and urinalysis. CVL\u2010positive animals presented heterogeneous kidney echotexture, reduced vascular flow, hypoperfusion, lesser visualization of the arcuate arteries, high RI values (1.06\u2009\u00b1\u20090.28 for the right kidney and 1.10\u2009\u00b1\u20090.30 for the left kidney), reduced diastolic flow, and high systolic peak. They also presented positive creatine\/RI correlation and between the renal artery vascular flow and kidney diameter. Histopathological analysis of CVL\u2010positive animals was compatible and confirmed hemodynamic changes observed by Doppler ultrasound. The findings in the present study showed that Doppler ultrasonography is a valid method to assess and detect alterations in flow in renal pathological processes with kidney vascular damage, as in the case of leishmaniasis, and can help in the diagnosis of animals with this infection. <jats:italic>Microsc. Res. Tech. 79:637\u2013645, 2016<\/jats:italic>. \u00a9 2016 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/jemt.22677","type":"journal-article","created":{"date-parts":[[2016,5,19]],"date-time":"2016-05-19T14:24:05Z","timestamp":1463667845000},"page":"637-645","source":"Crossref","is-referenced-by-count":14,"title":["Comparative B\u2010mode and Doppler renal ultrasonography with histopathological findings in dogs positive for canine visceral leishmaniasis"],"prefix":"10.1002","volume":"79","author":[{"given":"Pollyana Irene","family":"Baltazar","sequence":"first","affiliation":[{"name":"Animal Science Post\u2010Graduate Program Federal University of Piau\u00ed Campus Ministro Petr\u00f4nio Portella Teresina Piau\u00ed 64049\u2010550 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laecio","family":"Da Silva Moura","sequence":"additional","affiliation":[{"name":"Animal Science Post\u2010Graduate Program Federal University of Piau\u00ed Campus Ministro 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