Lisciandro, Gregory R.Fosgate, Geoffrey Theodore2017-11-222017-11Lisciandro, G.R. & Fosgate, G.T. 2017, 'Use of urinary bladder measurements from a point-of-care cysto-colic ultrasonographic view to estimate urinary bladder volume in dogs and cats', Journal of Veterinary Emergency and Critical Care, vol. 27, no. 6, pp. 713-717.1479-3261 (print)1476-4431 (online)10.1111/vec.12670http://hdl.handle.net/2263/63256OBJECTIVE : to develop a point-of-care ultrasound-derived formula to estimate urinary bladder volume noninvasively in dogs and cats. DESIGN : Prospective case series. SETTING : Private 24-hour veterinary emergency center. ANIMALS : Client-owned dogs and cats requiring urethral catheterization. INTERVENTIONS : Ultrasound measurements of length, width, and height of balloons filled with known water volumes were used to develop a formula to estimate urinary bladder volume using linear regression. The formula was then applied to point-of-care ultrasound-derived cysto-colic view measurements, and calculations were compared to total aspirated urine volume. MEASUREMENTS AND MAIN RESULTS : Fifteen balloons with known volumes (median, 126 mL [range, 27–689 mL]) were used to identify length × width × height (cm) × 0.2 × π as the best formula to estimate urinary bladder volume in milliliters. Fourteen cats and 14 dogs were used for comparison of formula-derived volume estimate to actual urinary bladder volume. Median aspirated urine volume, bias (formula-derived minus actual aspirated), and percentage difference were 80 mL, –4.1 mL, and –6.6% for cats, respectively. For dogs, the results were 78 mL, 3.4 mL, and 3.6%, respectively. CONCLUSIONS AND CLINICAL RELEVANCE : The point-of-care ultrasound-derived formula may be useful to estimate urine volume noninvasively in dogs and cats.en© 2017 Veterinary Emergency and Critical Care Society. This is the pre-peer reviewed version of the following article : 'Use of urinary bladder measurements from a point-of-care cysto-colic ultrasonographic view to estimate urinary bladder volume in dogs and cats', Journal of Veterinary Emergency and Critical Care, vol. 27, no. 6, pp. 713-717, 2017, doi : 10.1111/vec.12670 . The definite version is available at : http://onlinelibrary.wiley.comjournal/10.1111/(ISSN)1476-4431.Abdominal focused assessment with sonography for trauma (AFAST)Urine output (UOP)Gallbladder volumeUltrasoundCanineFelinePostprint Article