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Have few questions here, and need your input.
I am wondering what the affect of velocity measurement is on heart rate.
I have learned that PSV can artificially increase in people with bradycardia, and tend to decrease in people with tachycardia.
Also how would you grade contralateral ICA high velocity who is serving as a major supplier of collateral blood flow around the circle of wills based on PSV alone. In this case PSV is usually > than 125 cm/sec in the ICA.