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Accuracy and precision of a new portable ultrasound scanner, the Biocon-700, in residual urine volume measurement

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Abstract

Introduction and hypothesis

The aim of this study was to examine the accuracy of a new portable abdominal ultrasound (US) machine (Biocon-700, Mcube Technology, Seoul, Korea) for measuring postvoid residual (PVR) urine.

Method

One-hundred and twenty-five patients with voiding problems underwent PVR measurements, which were compared with the postvoid bladder volume measurements obtained by catheterization within 5 min in the same patients. Accuracy was assessed by comparing the two methods, and correlation coefficients were obtained.

Result

The Pearson’s correlation coefficient between PVR volume as measured by US and by catheterization was 0.872 (R 2 = 0.76). The mean difference was 23.59 ± 37.32 ml (95% confidence interval, 17.5–30.65 ml), and the absolute scan error tended to increase with a greater amount of catheterized residual urine volume (R 2 = 0.49).

Conclusions

Accuracy of the Biocon-700 scanner is as good as catheter assessments of residual volume and is therefore a sufficient alternative to catheterization for determining residual urine volume.

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Authors and Affiliations

  1. Department of Obstetrics and Gynecology, Chonnam National University Medical School, 8 Hakdong, Dong-gu, Gwangju, Republic of Korea

    Moon Kyoung Cho, Eun Ji Noh & Chul Hong Kim

Authors
  1. Moon Kyoung Cho
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  2. Eun Ji Noh
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  3. Chul Hong Kim
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Correspondence to Chul Hong Kim.

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Cho, M.K., Noh, E.J. & Kim, C.H. Accuracy and precision of a new portable ultrasound scanner, the Biocon-700, in residual urine volume measurement. Int Urogynecol J 28, 1057–1061 (2017). https://doi.org/10.1007/s00192-016-3224-0

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  • DOI: https://doi.org/10.1007/s00192-016-3224-0

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