Good afternoon sir,

The insonation angle should be between 30-60 degree for studying the MUA haemodynamics whereas the angle should be cutdown to a range of 15-30 degree for investigation of umbilical haemodynamic changes

Sir, i am also wandering same but in general angle should be less than 60 and close to 20, this is what came to know from reading some literatures.

even i wish to know wether angle is auto adjusted once set in the machine even after movement of probe.

thank you