Ultrasound-Guided Microbubble Removal and Filter Lifespan During CRRT: A Pilot Crossover Study

CRRT circuits will be primed under real-time ultrasound monitoring. A portable ultrasound probe will be used to scan key points in the circuit and filter to detect and guide the removal of residual microbubbles before treatment. The process is considered complete when three consecutive scans (at 2-minute intervals) show no detectable microbubbles.