TY - JOUR
T1 - Ultrasound assessment of testicular volume
T2 - An interobserver variability study
AU - Pedersen, Malene Roland Vils
AU - Otto, Peter Obel
AU - Fredslund, Mads
AU - Smedegaard, Claus
AU - Jensen, Janni
AU - McEntee, Mark F.
AU - Loft, Martina Kastrup
PY - 2023/12
Y1 - 2023/12
N2 - Background: Ultrasonography measurement of the testicles and subsequent calculation of the testicular volume is recommended as a part of a standard scrotal ultrasound examination. The interobserver variability of testicular volume measurement has implications for surgical recommendations. Therefore, this study aimed to investigate the interobserver variability in the measurement of testicular volume. Methods: Interobserver variability was established by comparing testicular measurements performed by two observers on the same patient during the same clinical appointment. The observers were blinded to each other's measurements. Testicular volume was calculated using the Lambert formula: length x width x height x 0.71. A total of three observers, A, B and C, participated in the study. The observers had between 4 to 20 years’ experience with scrotal ultrasound examinations. Results: In total, 24 patients’ were included (48 testicles). The patient´s mean age was 43 years (range 19-75 years). The overall mean right testicular volume was 19.8 ml (range 7.3–31.6 ml), and the left was 20.1 ml (range 7.1–36.1 ml). The interclass correlation coefficient (ICC) between observer A and B was excellent (ICC= 0.98, CI:0.92–0.99), between observer A and C, was excellent (ICC=0.91, CI: 0.77–0.97) and between B and C good (ICC=0.82, CI:0.51–0.93). Conclusion: Variability in estimating testicular volume is low, with interobserver agreement ranging from good to excellent. Ultrasound provides a highly reproducible tool to determine testicular volume.
AB - Background: Ultrasonography measurement of the testicles and subsequent calculation of the testicular volume is recommended as a part of a standard scrotal ultrasound examination. The interobserver variability of testicular volume measurement has implications for surgical recommendations. Therefore, this study aimed to investigate the interobserver variability in the measurement of testicular volume. Methods: Interobserver variability was established by comparing testicular measurements performed by two observers on the same patient during the same clinical appointment. The observers were blinded to each other's measurements. Testicular volume was calculated using the Lambert formula: length x width x height x 0.71. A total of three observers, A, B and C, participated in the study. The observers had between 4 to 20 years’ experience with scrotal ultrasound examinations. Results: In total, 24 patients’ were included (48 testicles). The patient´s mean age was 43 years (range 19-75 years). The overall mean right testicular volume was 19.8 ml (range 7.3–31.6 ml), and the left was 20.1 ml (range 7.1–36.1 ml). The interclass correlation coefficient (ICC) between observer A and B was excellent (ICC= 0.98, CI:0.92–0.99), between observer A and C, was excellent (ICC=0.91, CI: 0.77–0.97) and between B and C good (ICC=0.82, CI:0.51–0.93). Conclusion: Variability in estimating testicular volume is low, with interobserver agreement ranging from good to excellent. Ultrasound provides a highly reproducible tool to determine testicular volume.
KW - Observer variability
KW - Testicular volume
KW - Testis
KW - Ultrasound
KW - Humans
KW - Middle Aged
KW - Male
KW - Young Adult
KW - Testis/diagnostic imaging
KW - Ultrasonography
KW - Adult
KW - Aged
KW - Observer Variation
U2 - 10.1016/j.jmir.2023.09.001
DO - 10.1016/j.jmir.2023.09.001
M3 - Journal article
C2 - 37838500
SN - 1939-8654
VL - 54
SP - 692
EP - 698
JO - Journal of Medical Imaging and Radiation Sciences
JF - Journal of Medical Imaging and Radiation Sciences
IS - 4
ER -