Repeated intracorporeal self-injection: effect on peak systolic velocity and cavernosal artery diameter

Middle cerebral artery peak systolic velocity: technique and variability.

OBJECTIVE Assessment of the middle cerebral artery (MCA) peak systolic velocity (PSV) can accurately diagnose fetal anemia and has decreased the number of invasive procedures, such as amniocentesis and cordocentesis. The objective of this investigation was to evaluate the intraobserver and interobserver variability as a measure of reproducibility of MCA PSV. The technique of correctly sampling ...

Predictive value of cavernosal peak systolic velocity in the flaccid penis.

PURPOSE The routine use of intracavernosal injection before Doppler investigation may cause time loss, side effects due to vasoactive agents used and incorrect evaluation in the diagnosis of arterial insufficiency because of psychological inhibition and anxiety. Doppler investigation without intracavernosal injection avoids these pronounced disadvantages. In our study we tried to evaluate wheth...

Peak Systolic Velocity / End Diastolic Velocity PI = ( Peak Systolic Velocity – End

Effects of median nerve block on radial artery diameter and peak velocity

Peripheral artery cannulation is a common procedure but can sometimes be difficult. Our goal was to determine if a median nerve block would increase the diameter and flow of the radial artery. Radial artery diameter and peak velocity was measured using a SonoSite Ultrasound System. Using ultrasound guidance, a median nerve block was performed with lidocaine. Subsequent measurements of the radia...

The effect of contrast material on transcranial Doppler evaluation of normal middle cerebral artery peak systolic velocity.

BACKGROUND AND PURPOSE Several recent studies have shown that sonographic contrast agents may affect transcranial Doppler evaluation of the arterial peak systolic velocity (PSV). Some investigators reported an increase in PSV, and others reported no change in PSV compared with baseline values. This study was conducted to determine the effect of sonographic contrast agent on PSV measured in norm...