Evaluation of lymphatic vessel diameters in healthy people using lymphatic ultrasound examination.

The aim of this study was to examine lymphatic diameters in lower limbs of healthy volunteers in different body positions using lymphatic ultrasound examinations. Thirty-five healthy volunteers participated in this study. Those who had a history of varicose veins in the leg, deep venous thrombosis, or surgery on their legs or abdomen were excluded. We measured the vertical width of the lymphatics with a 33 MHz linear ultrasound probe, at 20 cm above the knee (thigh) and 10 cm below the knee (lower leg). First, the participants were placed supine, then sitting, and then standing. We performed lymphatic ultrasound examinations in each body position. The Student t test was used to compare lymphatic vessel diameters in the supine, sitting, and standing positions. The significance level was set at .05. Among 35 healthy volunteers, 17 were men and 18 were women. Mean age was 30.9 (range, 23-55) years. The mean body mass index was 21.3 kg/m In healthy legs, lymphatic diameters do not change with body positioning. Supine lymphatic vessel diameters are greater in men than in women.

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