Nutcracker syndrome (NCS) results from left renal vein (LRV) compression, typically between the abdominal aorta and superior mesenteric artery. The use of ultrasonography (US) to aid in diagnosis can be challenging due to the dynamic nature of the nutcracker phenomenon (NCP) and variability of symptoms, which can fluctuate with changes in patient posture and respiration. Moreover, defining a reliable Doppler threshold in children remains underexplored. This study explores the added utility of Doppler peak systolic velocity (PSV) ratio to LRV diameters in the evaluation of suspected NCS. Read More

Meeting name: SPR 2026 Annual Meeting , 2026

Authors: Chew Lay Ee, Tan Timothy Shao Ern

Keywords: Nutcracker Syndrome, Doppler US, Kidneys

Midgut volvulus (MGV) is a surgical emergency with potentially devastating risks of short gut syndrome, sepsis, and death. Timely diagnosis prevents treatment delay. Although traditionally diagnosed with an upper gastrointestinal (UGI) series, ultrasound (US) offers a rapid, radiation-free alternative when performed by trained operators. As part of our institution’s transition to an “ultrasound-first” protocol for suspected malrotation/MGV, we designed and implemented a structured training program to enhance sonographer proficiency. This study presents the framework and preliminary outcomes of this training initiative. Read More

Meeting name: SPR 2026 Annual Meeting , 2026

Authors: Belmonte Joy, Yang Yin, Chew Lay Ee, Wong Lee, Fortier Marielle, Tan Timothy Shao Ern

Keywords: Ultrasound, Gastric Volvulus, Malrotation