Open Access

Diagnostic role of gray-scale and shear-wave elastography in pediatric patients with undescended testes: a prospective controlled study

Ismail Yurtsever
Ismail Yurtsever
, 
Seyma Yıldız
Seyma Yıldız
, 
Samil Amirjanov
Samil Amirjanov
, 
Can Yılmaz Yozgat
Can Yılmaz Yozgat
, 
Serdar Balsak
Serdar Balsak
, 
Abdüsselim Adil Peker
Abdüsselim Adil Peker
, 
Bahar Atasoy
Bahar Atasoy
, 
Ahmet Berk Erol
Ahmet Berk Erol
, 
Ozlem Toluk
Ozlem Toluk
 and 
İbrahim Aydoğdu
İbrahim Aydoğdu
   | Feb 27, 2024
Journal of Ultrasonography's Cover Image
About this article
Previous Article
Next Article
Cite
Article Category: Research paper
Published Online: Feb 27, 2024
Page range: -
Received: Jun 25, 2023
Accepted: Sep 11, 2023
DOI: https://doi.org/10.15557/jou.2024.0004
Keywords
© 2024 Ismail Yurtsever et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1.

Gray-scale ultrasonography images in a 120-month-old boy. A. Deep plane undescended testis with reduced echogenicity and dimensions in the right inguinal canal. B. Image of left testis with normal echogenicity, located in the scrotum
Gray-scale ultrasonography images in a 120-month-old boy. A. Deep plane undescended testis with reduced echogenicity and dimensions in the right inguinal canal. B. Image of left testis with normal echogenicity, located in the scrotum

Fig. 2.

Shear wave elastography (SWE) images in a 120-month-old boy with UDT. A. Elasticity mode 23.3 kPa kilopascals (kPa). B. Velocity mode 2.77 meters per second (m/s). C. Propagation (arrival time contour) mode parallel lines taken for confirmation
Shear wave elastography (SWE) images in a 120-month-old boy with UDT. A. Elasticity mode 23.3 kPa kilopascals (kPa). B. Velocity mode 2.77 meters per second (m/s). C. Propagation (arrival time contour) mode parallel lines taken for confirmation

Fig. 3.

We used the ROC curve to define an interrupt SWE value that predicted decreased testicular echogenicity using average SWE values. The area under the curve for the UDT was 0.78 (95% CI: 0.70–0.85, sensitivity 83.7%, specificity 68.7%, p <0.001), with an average SWE value of 2.32 (m/s) for above the cut-off point indicates
We used the ROC curve to define an interrupt SWE value that predicted decreased testicular echogenicity using average SWE values. The area under the curve for the UDT was 0.78 (95% CI: 0.70–0.85, sensitivity 83.7%, specificity 68.7%, p <0.001), with an average SWE value of 2.32 (m/s) for above the cut-off point indicates

Correlation of UDT ages and SWE values

Age in unilateral UDT group Age in bilateral UDT group
r p r p
Average of SWE values −0.022 0.878 0.347 0.060
Maximus of SWE values 0.209 0.142 −0.151 0.425
Ratio of SWE values 0.015 0.918 0.180 0.340

Comparison of testicular echogenicity and SWE measurement between healthy and UDT groups

Healthy group (n = 62) Bilateral UDT group (n = 30) Unilateral UDT group (n = 51) p
Age (in months) 50 (13–115) (n = 15) 51 (10–116) 32 (10–118) 0.090
Echogenicity normal decreased

62 (100%)

0 (0%)

17 (56.7%)

13 (43.3%)

17 (33.3%)

34 (66.7%)

 <0.001

Healthy-bilateral <0.001*

Healthy-unilateral <0.001*

Unilateral-bilateral 0.040*
Average of SWE (m/s) 1.47 (1.02–1.99) 2.86 (2.30–3.69) 2.59 (1.71–3.88) <0.001

Healthy-bilateral <0.001

Healthy-unilateral <0.001

Unilateral-bilateral 0.170
Ratio of SWE (m/s) 1.02 (0.68–1.61) 1.83 (1.21–2.43) 1.74 (1.15–3.45) <0.001

Healthy-bilateral <0.001

Healthy-unilateral <0.001

Unilateral-bilateral 1.000
Maximus of SWE (m/s) N/A 3.27 ± 0.37 3.09 ± 0.50 0.090
eISSN:
2451-070X
Language:
English
Publication timeframe:
4 times per year
Journal Subjects:
Medicine, Basic Medical Science, other
Journal RSS Feed