A-wave

The A-wave is a specific finding seen in ultrasound studies of the bladder and ureter, often during procedures like renal pelvis ultrasound or micturition studies. It represents a brief, pressure-related backward wave in the urinary system that occurs during bladder filling or contraction, reflecting the coordinated activity of the bladder and ureter. In clinical context, recognizing the A-wave can help assess the functioning and patency of the urinary pathways, guiding diagnosis of conditions such as urinary obstructions or nerve-related bladder dysfunctions.