[Ultrasound attenuation as a function of frequency in formalin fixed testicular tissue].

Zeitschrift fur experimentelle Chirurgie, Transplantation, und kunstliche Organe : Organ der Sektion Experimentelle Chirurgie der Gesellschaft fur Chirurgie der DDR Pub Date : 1989-01-01

H Heynemann, K P Richter, J Haerting, H J Holzhausen, J Baumann, K Jenderka, R Millner, B Langkopf

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Abstract

Measurements of the ultrasound attenuation were carried out in 10 normal testes and 20 pathologically changed testicular tissue biopsies in vitro after formalin fixation. The ultrasound attenuation as function of the frequency was recorded ultrasound-spectroscopically about the complete frequency spectrum of the ultrasound-broad range transformer (3-8 MHz). The frequency dependence of the attenuation behaviour differed in the 10 normal testes from the 20 pathologically changed biopsies by smaller values of the ultrasound attenuation coefficient a (linear regression analysis). The ultrasound attenuation in a characteristic measuring point allows the differentiation between normal and pathologically changed testicular tissue. The following comparison with the histologic evidences showed the correspondence of the results.

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[超声衰减在福尔马林固定睾丸组织中的频率函数]。

对10例正常睾丸和20例病理改变的睾丸组织进行福尔马林固定后体外超声衰减测量。超声谱法记录了超声宽量程变压器全频谱(3 ~ 8 MHz)的超声衰减随频率的变化。衰减行为的频率依赖性在10个正常睾丸和20个病理改变活检中不同，超声衰减系数a值较小(线性回归分析)。超声衰减在一个特征测量点允许区分正常和病理改变睾丸组织。随后与组织学证据比较，结果一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Zeitschrift fur experimentelle Chirurgie, Transplantation, und kunstliche Organe : Organ der Sektion Experimentelle Chirurgie der Gesellschaft fur Chirurgie der DDR

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