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英文誌(2004-)

Journal of Medical Ultrasonics

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1990 - Vol.17

Vol.17 No.04

Original Article(原著)

(0427 - 0435)

後方散乱信号の振幅,平均周波数,周波数依存減衰率画像解析とび慢性腎疾患への応用例

Ultrasonographic Diagnosis of Diffuse Renal Disease Using Texture Analysis of Amplitude, Meanfrequency, Frequency Dependent Attenuation Image

小谷 和彦1, 田丸 俊三2, 上田 正伸2, 宮川 征男2

Kazuhiko KODANI1, Shunzo TAMARU2, Masanobu UEDA2, Ikuo MIYAGAWA2

1鳥取大学医学部放射線科, 2鳥取大学医学部泌尿器科

1Department of Radiology Tottori University School of Medicine, 2Department of Urology Tottori University School of Medicine

キーワード : Diffuse renal disease, Amplitude image, Mean frequency image, Frequency dependent attenuation image, Texture analysis

We tried to apply US-tissue characterization to diagnosing diffuse renal diseases. We made images of the renal cortex using amplitude, mean frequency, frequency-dependent attenuation from a back-scattered signal. We then analyzed the textures of these images.
We analyzed the parameter images taken from chronic renal failure patients (non-contracted kidney (4 cases), contracted kidney (3 cases) and normal volunteers (7 cases).
There were no significant differences between these parameter values, but we found significant statistical differences between some texture statistics from the parameter images obtained from the three groups.
This indicates that parameter imaging and texture analysis could be useful in diagnosing diffuse renal disease.