Carotid Doppler and IVC Measurements for Volume Guided Management in Acute Kidney Injury Patients

"bed side ultrasonographic assessement of inferior vena cava maximum and minimum diameters 2 to 5 cm caudal to its junction with the right atrium over a single respiratory cycle , inferior vena cava collapsibility index (IVC-CI) will calculated as (IVC max - IVC min)/IVC max).~carotid doppler assessment (2-3 cm proximal to the carotid bulb in the longitudinal plane) of corrected carotid flow time(systole time/√cycle time) ,carotid artery peak velocity variation calculated as (\[PV max- PV min\]/PV mean) × 100, where PV mean = (PV max + PV min)/2. during three consecutive respiratory cycles. as part of their routine care and assessment"