Measurement of Shock Wave Pressure Distribution of Extracorporeal Shock Wave Lithotripter Using Pressure-Sensitive Paper: Practical Usefulness and Limitations

Measurement of Shock Wave Pressure Distribution of Extracorporeal Shock Wave Lithotripter Using Pressure-Sensitive Paper: Practical Usefulness and Limitations

A new method for evaluating shock wave pressure distribution of extracorporeal shock wave lithotripters, using pressure-sensitive paper has been developed. It is a simple method to visualize the shock wave pressure distribution and has a better spatial resolution than the hydrophone. The pressure-se...

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Veröffentlicht in:Japanese Journal of Applied Physics 1994, Vol.33 (5S), p.3155-3158
Hauptverfasser: Oyanagi, Masamichi, Kudo, Nobuki, Yanagida, Yuji, Nobuyuki Iwama, Nobuyuki Iwama, Kiyoshi Okazaki, Kiyoshi Okazaki
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container_end_page 3158
container_issue 5S
container_start_page 3155
container_title Japanese Journal of Applied Physics
container_volume 33
creator Oyanagi, Masamichi
Kudo, Nobuki
Yanagida, Yuji
Nobuyuki Iwama, Nobuyuki Iwama
Kiyoshi Okazaki, Kiyoshi Okazaki
description A new method for evaluating shock wave pressure distribution of extracorporeal shock wave lithotripters, using pressure-sensitive paper has been developed. It is a simple method to visualize the shock wave pressure distribution and has a better spatial resolution than the hydrophone. The pressure-sensitive paper can be used to visually detect whether the focal point is on the correct position, and to detect changes of pressure distribution. Additionally, the relationship between lithotripter power and integrated density as a new evaluating value shows linearity. Therefore, this method is useful for quality assurance of lithotripters at hospitals.
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title Measurement of Shock Wave Pressure Distribution of Extracorporeal Shock Wave Lithotripter Using Pressure-Sensitive Paper: Practical Usefulness and Limitations
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