Blood perfusion of the contralateral testis evaluated with contrast-enhanced ultrasound in rabbits with unilateral testicular torsion.
- Author:
Lin CHEN
1
;
Wei-Wei ZHAN
;
Zhou-Jun SHEN
;
Wen-Bin RUI
;
Chen LV
;
Man CHEN
;
Jian-Qiao ZHOU
;
Ping ZHOU
;
Mi ZHOU
;
Ying ZHU
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Contrast Media; Disease Models, Animal; Male; Rabbits; Regional Blood Flow; physiology; Spermatic Cord Torsion; pathology; physiopathology; Testis; blood supply; diagnostic imaging; pathology; Ultrasonography
- From: Asian Journal of Andrology 2009;11(2):253-260
- CountryChina
- Language:English
- Abstract: The changes of blood perfusion of contralateral testis after unilateral testicular torsion remain controversial. In this study, 28 New Zealand white male rabbits were randomly divided into five groups. Group A (n = 8), the control group, underwent a sham operation on the unilateral testis without inducing testicular torsion. In groups B, C, and D (n = 5 each), unilateral testicular torsion was induced, and, after 3, 6 or 24 h, respectively, detorsion was performed. In group E (n = 5), permanent unilateral testicular torsion was applied. Contrast-enhanced ultrasound was used to observe the blood perfusion of the contralateral testis at the following stages: pre-torsion (preopration), immediately post-torsion (postopration), pre-detorsion, immediately post-detorsion, and late-stage post-detorsion (6-12 h post-detorsion in groups B-D) or at a similar time point (15-21 h post-torsion in group E). Time-intensity curves were generated, and the following parameters were derived and analyzed: arrival time, time to peak intensity, peak intensity, and half-time of the descending peak intensity. The analysis revealed that blood perfusion of the contralateral testis increased immediately after testicular torsion on the opposite side (P < 0.05), which increased with prolonged testicular torsion of the other testis. This research demonstrated that contrast-enhanced ultrasound was valuable in evaluating blood perfusion of the contralateral testis after unilateral testicular torsion.
