Items tagged “hydronephrosis”
3 results found
Article
Calyceal crescent sign (intravenous pyelogram)
The calyceal crescent sign (of Dunbar and Nogrady) refers to the early intravenous pyelogram (IVP) appearance of markedly dilated renal calyces. It is formed by early contrast opacification of the dilated collecting ducts and ducts of Bellini with the characteristic shape as a result of the asso...
Article
Hydronephrosis grading (SFU system)
The grading system of hydronephrosis developed by the Society of Fetal Urology (SFU) was devised to assess the degree of hydronephrosis. This particular system is thought to be the most common in use and was originally designed for grading neonatal and infant pelvicalyectasis:
grade 0
no ...
Article
Urinary tract dilatation classification
The urinary tract dilatation (UTD) classification system is a proposed unified classification of urinary tract dilatation for prenatal and postnatal care. This classification was developed by the collaboration of clinicians from eight societies (American College of Radiology (ACR), American Inst...