Usefulness of an Ultrasound System with Automatic Bladder Urine Volume Measurement Using Artificial Intelligence Technology in Radiotherapy

Shibata Mayuri, Okada Wataru, Sano Keisuke, Nakamura Kenji, Sakai Yusuke, Ueda Yoshihiro, Uemoto Kenji, Takei Yoshiki, Tanooka Masao

doi:10.6009/jjrt.2022-1316

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Artificial intelligence技術を活用した膀胱容量自動計測機能搭載超音波装置の放射線治療における有用性
Artificial intelligence ギジュツオカツヨウシタボウコウヨウリョウジドウケイソクキノウトウサイチョウオンパソウチノホウシャセンチリョウニオケルユウヨウセイ

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<p>Purpose: We aimed to investigate the usefulness of iViz air ver.4 Convex (FUJIFILM, Tokyo) as a tool to determine the bladder capacity before prostate radiotherapy by comparing it with the existing BladderScan BVI 6100 (Verathon Inc., Bothell, Washington). Methods: We investigated the usefulness of iViz air as a tool to determine the bladder capacity before prostate radiotherapy by comparing it with the current BladderScan. Results: The absolute value of each error rate was approximately 30.9%±27.2% and 26.4%±18.9% for the BladderScan and iViz air, respectively, with no significant differences between the instruments (p=0.16). Evaluated by urine volume, the mean error rates for bladder volumes >50 ml were 26.9%±19.0% and 26.1%±18.5% for the Bladder Scan and iViz air, respectively, with no significant differences (p=0.56). However, the BladderScan and iViz air had significantly higher error rates of 89.5%±52.5% and 31.5%±25.1%, respectively, if the bladder volume was <50 ml (p=0.005). Conclusion: The iViz air has limited measurement error to confirm images, especially in limited volumes, suggesting that it is a useful bladder capacity measurement device in performing prostate radiotherapy.</p>

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Japanese Journal of Radiological Technology

Japanese Journal of Radiological Technology 78 (12), 1406-1414, 2022

Japanese Society of Radiological Technology

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