Ultrasound quarterly · 2020
Application of Shear Wave Elastography to Evaluate the Stiffness of Normal Testes and Inflammatory Epididymal Tail Masses.
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Chen Fei, Mao Lin, Zhou Xiaohua, Qiao Xueyan, Luo Yanhua, Zhu Zhimin, Chen Rui, Qiu Shaodong, Zeng Bidan
Аннотация
OBJECTIVE: This study aimed to investigate the application value of shear wave elastography in examining normal testes and inflammatory epididymal tail masses.
METHODS: We examined 110 healthy male volunteers (with a total of 220 testes) and 25 patients with epididymitis via conventional scrotal ultrasonography and shear wave elastography. The mean (Emean), minimal (Emin), maximal (Emax), and standard deviation (ESD) values of elasticity were acquired. The inflammatory masses were assessed at initial diagnosis, at weeks 1 and 2 of standard anti-inflammatory treatment, upon remission, and at 2 weeks after remission.
RESULTS: The Emean values of different regions in testes varied in the following order: center region (3.14 ± 0.35 kPa) < upper- or lower-pole capsule (upper, 3.94 ± 0.90 kPa; lower, 3.94 ± 0.97 kPa) < posterior capsule (5.96 ± 1.46 kPa) < anterior capsule (6.27 ± 1.58 kPa). The Emean value of the center of the testicular parenchyma in the short axis was significantly larger than that in the long axis (3.47 ± 0.32 vs 3.14 ± 0.35 kPa; P < 0.05). There were significant differences in the Emean value between inflammatory epididymal tail masses at initial diagnosis, at 1 and 2 weeks after treatment, upon remission, and at 2 weeks after remission (P < 0.05).
CONCLUSIONS: Shear wave elastography can be used to reflect the relative hardness of normal testes and inflammatory epididymal tail masses.
METHODS: We examined 110 healthy male volunteers (with a total of 220 testes) and 25 patients with epididymitis via conventional scrotal ultrasonography and shear wave elastography. The mean (Emean), minimal (Emin), maximal (Emax), and standard deviation (ESD) values of elasticity were acquired. The inflammatory masses were assessed at initial diagnosis, at weeks 1 and 2 of standard anti-inflammatory treatment, upon remission, and at 2 weeks after remission.
RESULTS: The Emean values of different regions in testes varied in the following order: center region (3.14 ± 0.35 kPa) < upper- or lower-pole capsule (upper, 3.94 ± 0.90 kPa; lower, 3.94 ± 0.97 kPa) < posterior capsule (5.96 ± 1.46 kPa) < anterior capsule (6.27 ± 1.58 kPa). The Emean value of the center of the testicular parenchyma in the short axis was significantly larger than that in the long axis (3.47 ± 0.32 vs 3.14 ± 0.35 kPa; P < 0.05). There were significant differences in the Emean value between inflammatory epididymal tail masses at initial diagnosis, at 1 and 2 weeks after treatment, upon remission, and at 2 weeks after remission (P < 0.05).
CONCLUSIONS: Shear wave elastography can be used to reflect the relative hardness of normal testes and inflammatory epididymal tail masses.