Digital venography of the lower extremity

A clinical study on serial retrograde venography of the lower extremity with varicose veins.

Venography furnishes a map of the otherwise invisible deep veins of the extremities, discloses pathological changes, localizes the communicating veins, and tests the function of veins and valves. This clinical study, was carried out to evaluate the serial retrograde venography of the lower extremities with varicose veins, using the serial long film changer with a tilt. Forty-three extremities w...

Radionuclide venography (RNV) of the pel via and lower extremity veins using ttmTc-albu

via and lower extremity veins using ttmTc-albu. mm microspheres was performed in 53 patients with pulmonary emboli or venous disease. In 25 patients who underwent both contrast and RNV studies, there were no false-positive studies and one false-negative. In this series the accu racy of RNV exceeded that of Doppler alone. When the results of these two methods were combined, false-negative studie...

Diagnosis of Suspected First Lower Extremity Deep Vein Thrombosis (DVT) Alternatives to Venography for the Evaluation of Suspected First Lower Extremity DVT

Combined Direct and Indirect CT Venography (Combined CTV) in Detecting Lower Extremity Deep Vein Thrombosis

This study aimed to evaluate the diagnostic accuracy of combined direct and indirect CT venography (combined CTV) in the detection of lower extremity deep vein thrombosis (LEDVT). The institutional review board approved the study protocol, and patients or qualifying family members provided informed consent. A total of 96 consecutive patients undergoing combined CTV were prospectively enrolled. ...

Digital Filtering of Three-Dimensional Lower Extremity Kinematics: an Assessment

Errors in kinematic data are referred to as noise and are an undesirable portion of any waveform. Noise is typically removed using a low-pass filter which removes the high frequency components of the signal. The selection of an optimal frequency cut-off is very important when processing kinematic information and a number of techniques exists for the determination of an optimal frequency cut-off...