F9, F9 Express Fetal & Maternal Monitor User Manual Ultrasound Intensity and Safety
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parameter specified in TRACK1 of FDA Guidance
Derated Peak-rare-factional Acoustic Pressure
z
sp
=z
B.3
, Depth for Bone Thermal Index
Center Frequency, Acoustic
Pulse Repetition Frequency
Derated Spatial-peak Temporal-average Intensity
Derated Spatial-peak Pulse-average Intensity
Aperture X width
Y Dimeter
Entrance Dimensions Of The Scan