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A comparison of bladder volumes based on treatment planning CT and BladderScan® BVI 6100 ultrasound device in a prostate radiation therapy population. | LitMetric
Objective: : The aim of this study is to investigate if a handheld ultrasound device (BladderScan® BVI 6100) can accurately measure bladder volumes in prostate radiotherapy (RT) patients.Methods: : A comparison was made of contoured bladder volumes based on treatment planning CT (TPCT) and BladderScan® BVI 6100 ultrasound device in a large prostate RT population. Three bladder volume (BV) measurements were taken using the bladder volume instrument (BVI) device on prostate RT patients immediately prior to TPCT (n = 190). The CT delineation bladder volumes were also recorded. The mean of the three BVI readings (BVI) and the maximum (BVI) of the readings were considered for a comparative analysis.Results: : There was a strong positive correlation between the BVI and CT delineated bladder volumes (BVI r = 0.825; BVI r = 0.830). The mean difference [± standard deviation (SD)] was an underestimation of BV for both BVI and BVI (44.8 ± 88.2 ml and 32.9 ± 87.5 ml, respectively).Conclusion: : This is the largest study to date (n = 190), assessing the accuracy of the BladderScan® BVI 6100 in the prostate RT population. The BVI 6100 provides an acceptable indication of BV for use in prostate RT patients for the purposes of monitoring BV.Advances In Knowledge: : The BladderScan® BVI 6100 provides a convenient and non-irradiating method of indicating BV for use in prostate RT patients.
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