[Role of Doppler color ultrasonography in the diagnosis of renovascular abnormalities associated with stenosis of the pyeloureteral junction].
The obstruction of the pielo-ureteral junction, in most of the cases, recognizes an intrinsic etiopathogenesis, the presence of a segment ureteral aperistaltic and alteration of the ureteral musculature. The association of GPU stenosis and the presence of vascular anomalous shanks are frequent. The knowledge of this anatomical situation is important for choosing the therapeutic strategy and the surgical technique. The pre-operative diagnosis of the anomalous vase could condition the choice of the technique (endoscopic technique, laparoscopic), opting for open surgery to have a better control of the vascular shank. We have examined the use of the echo-color Doppler to diagnose the presence of anomalous vase. We have studied 13 patients (6 men and 7 women) between 18 and 62 years of age (average 35 years); the side interested by the obstruction was in 8 cases the right and in 5 cases the left. During surgery in 4 cases out of 13 examined anomalous vases were present. The pre-operative color Doppler found 3 anomalous shanks with a negative false, a positive false and 8 negative trues, showing a sensibility of 75%, a specificity of 88% with a global diagnostic ability of the 84%. We therefore believe that the echo-color Doppler is reliable enough in the pre-operative diagnosis of vascular anomalies associated to stenosis of the GPU and that could be used for pre-operative diagnosis of this urological affection.
Rosi
P
P
Clinica Urologica, Università degli Studi di Perugia.
Gilardi
R
R
Del Zingaro
M
M
Radicchia
C
C
Porena
M
M
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007682:Kidney Pelvis / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012077:Renal Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D012082:Renal Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D018615:Ultrasonography, Doppler, Color; D014517:Ureteral Obstruction / Q000150:complications* / Q000000981:diagnostic imaging*
Ruolo dell'eco-color Doppler nella diagnosi di anomalie vascolari renali associate a stenosi della giunzione pieloureterale.