Is Long-axis or Short-axis Pulsed Wave Doppler Optimal for Preoperative Assessment of Varicose Veins in the Lower Extremities?

Abstract

Ultrasonography is essential in the diagnosis of varicose veins and is performed according to guidelines. However, there are many ambiguities in the guidelines regarding whether the long-axis or short-axis method should be used for the ultrasonography of varicose veins. Three technicians recorded duplex scan images at three points (mid-thigh, peri-knee, and mid-lower leg) using the long-axis and short-axis methods in six consecutive cases, respectively, and measured the vein diameters. Their examination times were measured and compared. In all cases, reflux signals were observed at all sites for both methods, and the short-axis method had a shorter examination time in all 18 cases. The short-axis method is recommended for most measurement points. While for the sapheno-femoral junction, the long-axis method is most suitable for measurement reasons.