To establish that the colour pixels represented flow and not an artefact, spectral Doppler was used displaying arterial or venous flow ... upgrade of equipment —thereby conserving the ultrasound ...

Ultrasound examinations can be adapted to the patient's disease and the severity of the disease. The examination starts with a transcranial duplex scan, which shows colour-coded blood flow through the ...

A thorough physical examination, comprehensive blood tests ... In this case, PH was identified using Doppler ultrasound, which revealed a low portal vein velocity. Ascites and splenomegaly were ...

Scientists from Colorado State University and the University of São Paulo have overcome a challenge that has prevented ...

Key points A 57-year-old man presented to the emergency department with back and right upper quadrant abdominal pain that progressed to painful right leg swelling over a few days. His vital signs at ...

Schedule an ultrasound exam at HSS. (A prescription is required.) You may also be familiar with the term Doppler imaging, which provides blood flow information in both arteries and veins. Abnormal ...

The limit has a nonlinear relation to the ultrasound frequency. The model also shows that the radial component of the muscle vibrations can be estimated from the phase of the doppler signal.

Abstract: We investigated the possibility of using coded excitation and pulse compression in Doppler ultrasound systems to improve resolution and signal-to-noise ratio (SNR) without increasing ...

Termed chronic cerebrospinal venous insufficiency (CCSVI), it suggests that macro ... Zamboni et al published that catheter venography in patients who met CCSVI Doppler criteria showed stenosis in the ...

ucalgary.ca Objectives To evaluate the umbilical venous catheter (UVC) tip position by ultrasound and compare it with standard radiograph findings and to examine the catheter tip migration rates ...