2016 Volume 54Annual Issue 27PM-Abstract Pages S235
Purpose: The purpose was to investigate whether the echogenicity of images obtained using different high-frequency ultrasonography devices could be standardized through the use of phantoms. Methods: We imaged a site on the forearms of healthy adults using two high-frequency ultrasonography devices. We calculated the echogenicity ratios by dividing echogenicity in lower dermis by phantom echogenicity. We created silicon pads that included grain for use as phantoms. We calculated the error between the dermal echogenicity of ultrasound A and B as well as the echogenicity ratio error.Results: The values of the dermal echogenicity and echogenicity ratio were respectively significantly different between two devices. The error of the dermal echogenicity between two devices was 25%, whereas that of the echogenicity ratio was 14%. Discussion and Conclusion: Because the error between the echogenicity ratios was lower than the one when using phantoms, it is possible to standardize echogenicity by calculating echogenicity ratio.
