ABSTRACT: BACKGROUND: Varicocele is a disease characterized by abnormally engorged veins of the pampiniform plexus. The prevalence of varicocele is approximately 15% in adult males. Multiple classification systems are available for grading varicoceles, all of them are non-ideal. Ultrasound elastography (USE) is a new imaging technology that examines tissue stiffness. Elasticity imaging by USE provides stiffness measurement as additional information to conventional US. AIM OF THE STUDY: Is to examine changes in testicular stiffness in varicocele in an attempt to assess the role of Shear wave elastography in testicular varicoceles and to provide additional diagnostic data to further improve and unify a grading system for varicoceles. PATIENTS AND METHODS: A cross sectional descriptive study undertaken on sixty-three patients which took place at Al-Yarmouk Teaching Hospital, Baghdad, Iraq, in the period between Jan. 10th to Nov. 11th, 2020. Standard scrotal ultrasonography followed by two-dimensional shear wave elastography were done for all patients. Sixty-three patients (126 testes) were divided to three groups; group (A): testes with a maximum venous diameter of less than 1.9mm representing non-varicose testes, group (B): those with a venous diameter between 2 and 3.4mm, and group (C): with venous diameter of equal or more than 3.5mm. Three stiffness measurements were taken by elastography in supine position with another three measurements in erect posture. RESULTS: Twenty-seven percent of subjects had normal testes, while 73% had varicoceles. 50% of varicoceles were bilateral, while 48% were left sided. Only one case (2%) had a right sided varicocele. There were no statistically significant differences between the mean volumes of the aforementioned groups. A weak negative correlation observed between the pampiniform venous plexus diameter and testicular stiffness, the mean testicular stiffness of group A was 2.85 ± 0.47 while groups B and C showed a mean stiffness of 2.80 ± 0.51 and 2.73 ± 0.44 kilo Pascals respectively. The differences were statistically insignificant between these groups. There was a highly significant difference between supine and erect testicular stiffnesses. Normal testes showed 19% increase in their mean stiffness in upright posture, as compared to varicose testes which demonstrated 13% increase. CONCLUSION: Shear wave elastography is a modern technology, however; its role in discriminating between grades of varicoceles is limited. |
REFERENCES:
- Turna O, Aybar MD. Testicular stiffness in varicocele: evaluation with shear wave elastography. Ultrasonography. 2020 ;39:350–55.
- Paick S, Choi WS. Varicocele and Testicular Pain: A Review. World J Mens Health. 2019;37:4–11.
- Erdogan H, Durmaz MS, Arslan S, Gokgoz Durmaz F, Cebeci H, Ergun O, et al. Shear Wave Elastography Evaluation of Testes in Patients With Varicocele. Ultrasound Q. 2020;36:64–68.
- Lorenc T, Krupniewski L, Palczewski P, Gołębiowski M. The value of ultrasonography in the diagnosis of varicocele. J Ultrason. 2016;16:359–70.
- Freeman S, Bertolotto M, Richenberg J, Belfield J, Dogra V, Huang DY, et al. Ultrasound evaluation of varicoceles: guidelines and recommendations of the European Society of Urogenital Radiology Scrotal and Penile Imaging Working Group (ESUR-SPIWG) for detection, classification, and grading. Eur Radiol. 2020 Jan 1;30:11–25.
- Zavattaro M, Ceruti C, Motta G, Allasia S, Marinelli L, Di Bisceglie C, et al. Treating varicocele in 2018: current knowledge and treatment options. J Endocrinol Invest. 2018 ;41:1365–75.
- Pauroso S, Di Leo N, Fulle I, Di Segni M, Alessi S, Maggini E. Varicocele: Ultrasonographic assessment in daily clinical practice. J Ultrasound. 2011;14:199–204.
- Tsili AC, Xiropotamou ON, Sylakos A, Maliakas V, Sofikitis N, Argyropoulou MI. Potential role of imaging in assessing harmful effects on spermatogenesis in adult testes with varicocele. World J Radiol. 2017;9:34–45.
- Tyloch JF, Wieczorek AP. Standards for scrotal ultrasonography. J Ultrason. 2016 ;16:391–403.
- Sigrist RMS, Liau J, Kaffas AE, Chammas MC, Willmann JK. Ultrasound Elastography: Review of Techniques and Clinical Applications. Theranostics. 2017;7:1303–29.
- Ozturk A, Grajo JR, Dhyani M, Anthony BW, Samir AE. Principles of ultrasound elastography. Abdom Radiol. 2018;43:773–85.
- Fuschi A, Capone L, Abuorouq S, Al Salhi Y, Velotti G, Aversa S, et al. Shear wave elastography in varicocele patients: Prospective study to investigate correlation with semen parameters and histological findings. Int J Clin Pract. 2020;e13699.
- Dede O, Teke M, Daggulli M, Utangaç M, Baş O, Penbegül N. Elastography to assess the effect of varicoceles on testes: a prospective controlled study. Andrologia. 2016;48:257–61.
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