INFLUENCE OF PATHOLOGICAL STATE ON THE ACOUSTIC ATTENUATION COEFFICIENT SLOPE OF LIVER
INFLUENCE OF PATHOLOGICAL STATE ON THE ACOUSTIC ATTENUATION COEFFICIENT SLOPE OF LIVER
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DOI：
10.1016/0301-5629(87)90141-4
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发表时间：
1987-03-01
影响因子：
2.9
通讯作者：
BARBIER, F
中科院分区：
文献类型：
--
作者：
AFSCHRIFT, M;CUVELIER, C;BARBIER, F
根据返回回声的频谱差估计肝脏在体内的声衰减系数斜率。平均：0.340 vs 0.418 dB/cm .cntdot。MHz)。通过血液透析从体内抽出有限的液体对β没有影响…酒精性肝病- β与肝活检标本中脂肪和纤维组织的数量有关。高值的。在脂肪变性程度超过5 vol%时立即观察。β也有类似的增加。有纤维性小叶间隔。在正常肝脏中。与肝脏标本中甘油三酯的含量有关。
The acoustic attenuation coefficient slope (.beta.) of liver was estimated in vivo from the spectral difference of returned echoes. .beta. of normal young subjects was lower than that of older subjects (mean: 0.340 vs 0.418 dB/cm .cntdot. MHz). Limited fluid withdrawal from the body by haemodialysis did not affect .beta.. In alcoholic liver disease .beta. was related to the amount of fat and of fibrous tissue in liver biopsy specimens. High values of .beta. were observed as soon as the degree of steatosis exceeded 5 vol%. There was a similar increase of .beta. in the presence of fibrous interlobular septa. In normal liver .beta. was related to the amount of triglycerides in the liver specimen.