The flow inside the AV access (AV fistula or graft) is used to determine if the hemodialysis prescription can be supported and if the access is developing a clinically significant stenosis
Ultrasound Dilution Technology (UDT)
Transonic Transit- Time Ultrasound Flow Measurement (TTFM) through sterile tubing is the gold standard for blood flow verification. Transonic ultrasound dilution access measurement by the ‘Krivitski Method’ is the recognized gold standard technology for dialysis patient access flow measurement. The Krivitski Method calls for the temporary reversal of arterial and venous blood lines at their respective needle connections to create mixing conditions conducive for an indicator dilution flow measurement when a bolus of isotonic saline is injected into the blood circuit. Classical dilution equations are used to calculate vascular access flow.
Confirmation of dialysis dose delivery
Transit-Time Ultrasound Flow Measurement (TTFM)
Effective dialysis depends on the delivery of the dialysis prescription from the dialysis machine to the patient. When a patient begins hemodialysis, a baseline dialysis adequacy flow study confirms dialysis delivery and can be used to set vascular access parameters. Often, Transonic’s accurate flow measurements expose issues with calibration of the hemodialysis pump itself; Transonic measurements onboard a hemodialysis machine allows for the ultimate guarantee that your device is working optimally.
Provides proactive cardiac index-tracking that helps avoid cardiac collapse
Ultrasound Dilution Technology (UDT)
For patients on dialysis, Transonic’s indicator dilution technology tracks the dilution of body temperature saline throughout the cardiovascular circuit to determine key cardiovascular functions such as Cardiac Index, Total Ejection Fraction, Central Blood Volume Index, etc. Knowing cardiac parameters can help staff identify high flow access that could cause cardiac overload, identify early cardiovascular issues, provide alerts to double check dry weight and medications, indicate fluid volume overload and avoid sudden cardiac collapse.
Identifies vascular access recirculation, a late indicator of access dysfunction, allowing for on-the-spot correction of inadvertent reversal of bloodlines, if necessary
Ultrasound Dilution Technology (UDT)