• Real-time Analysis
This is a great advantage in studies of FMD, where one of the most critical points is to maintain good image quality for the duration of the test (9 minutes). With the aid of a real-time system, the sonographer can more easily adjust the position of the ultrasound probe to compensate for the movements of the patient.
• Automatic Doppler Flow Analysis
In addition to the automatic measurement of the diameter, the software automatically analyzes the Doppler signal (when available in dual-mode by ultrasound equipment) in order to calculate the value of instantaneous shear rate. This provides the exact amount of the vasodilation stimulus, which can be used to normalize the FMD value, as strongly recommended by more recent studies.
• High Accuracy
The system uses an innovative mathematical operator with sub-pixel precision. This permits overcoming the spatial resolution limitations of the image with results otherwise obtainable only through a more complex analysis of the ultrasound radio frequency signal.
• ECG Gating Not Required
ECG gating is not required. This type of measurement usually requires synchronization with the ECG. The technique we developed overcomes this requirement in favor of the simplicity of the procedure and cost of the required equipment.
• Quality Feedback
The system provides signals that can be used by the sonographer as markers of quality and reliability of the images.