SFU grading
Also written as: SFU — Society for Fetal Urology
Society for Fetal Urology grading system used to classify the severity of antenatal hydronephrosis on prenatal ultrasound.
Full Definition
The Society for Fetal Urology (SFU) grading system is a standardized classification method for assessing the severity of antenatal hydronephrosis detected on prenatal ultrasound examinations. The system uses grades 0-4, where Grade 0 represents normal anatomy, Grade 1 shows slight splitting of the central renal complex, Grade 2 demonstrates evident splitting of the renal pelvis, Grade 3 shows wide splitting with visualization of major calyces, and Grade 4 reveals further calyceal dilation. This grading system helps guide postnatal management decisions and determines the urgency of follow-up imaging studies.
Usage
Usage note: Use Arabic numerals for grades (0-4); distinguish from other grading systems used in pediatric urology.
In Context
- "The fetal ultrasound demonstrated SFU Grade 3 hydronephrosis requiring postnatal follow-up." — Prenatal consultation report
- "SFU grading helps stratify risk and determine appropriate postnatal imaging schedules." — Clinical practice guideline