Correlation of the inner diameter parameters of the spermatic vein in different positions and states of the varicocele patient with the results of seminal examination.
- Author:
Yan-Yan TONG
1
;
Ju-Fang LIU
1
;
Xian-Lu CUI
1
;
Jing MA
1
Author Information
- Publication Type:Journal Article
- Keywords: inner diameter of spermatic vein; position; receiver operating characteristic curve; semen analysis; ultrasonography; varicocele
- MeSH: Adult; Humans; Male; Organ Size; Posture; ROC Curve; Semen Analysis; Sensitivity and Specificity; Supine Position; Testis; blood supply; diagnostic imaging; Ultrasonography; Valsalva Maneuver; Varicocele; diagnostic imaging; pathology; Veins; diagnostic imaging; pathology
- From: National Journal of Andrology 2016;22(8):710-714
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo study the correlation of the inner diameter parameters of the spermatic vein in different positions and states of the varicocele (VC) patient with the results of seminal examination.
METHODSA total of 149 VC patients underwent ultrasonography, routine semen examination, and sperm morphological analysis. The parameters obtained from ultrasonography included the bilateral testis volume in a supine position, the largest spermatic vein diameter in a supine position at rest (DSR), the largest spermatic vein diameter in a supine position following Valsalva manoeuvre (DSV), the largest spermatic vein diameter in an upright position at rest (DUR), and the largest spermatic vein diameter in an upright position following Valsalva manoeuvre (DUV). Then we calculated the parameters △DS=DSV－DSR, △DU=DUV－DUR, △DR=DUR－DSR, and △DV=DUV－DSV and analyzed the correlation of the above parameters with the results of semen examination using the ROC curve.
RESULTSBased on the results of semen examination, 119 (79.87%) of the patients were allocated to the abnormal group and the other 30 (20.13%) to the normal group. Statistically significant differences were observed between the two groups in △DU (P=0.007), △DR (P=0.0001), and △DV (P=0.04), but not in DSR (P=0.35), DSV (P=0.34), DUR (P=0.06), DUV (P=0.12), and △DS (P=0.64), nor in the volume of the testis affected (P=0.323). The area under the ROC curve was 0.55 for DSR, 0.57 for DSV, 0.64 for DUR, 0.62 for DUV, 0.49 for △DS, 0.28 for △DU, 0.86 for △DR, and 0.69 for △DV. The corresponding cutoff values were 2.25, 2.51, 2.48, 2.63, 0.30, 0.23, 0.25, and 0.20, the corresponding sensitivities of semen detection were 50.42%, 65.55%, 60.50%, 60.50%, 49.90%, 29.41%, 79.83%, and 65.55%, and the corresponding specificities were 56.67%, 63.33%, 63.33%, 63.33%, 56.67%, 33.33%, 80%, and 63.33%, respectively.
CONCLUSIONSThe difference between the largest spermatic vein diameters in supine and upright positions at rest provides a high diagnostic accuracy for semen detection and helps to predict abnormality in seminal examination for VC patients.
