Fig. 2.

Imaging at 2 h. In some cases, lymphatic circulation problems can be mostly confined to one compartment: left lower limb lymphedema with slight deficit of the left limb superficial circulation (a) but a severe insufficiency of the ipsilateral deep circulation (b). The dynamic node uptake of the deep circulation is shown in c with images sampled every 120 s after the subfascial injection. (Transport index (TI) scores are as follows: superficial circuit: left leg TI = 9: K − 3, D − 0, T − 0.3 (8 min), N − 3, and V − 3 and right leg TI = 1.1: K − 1, D − 0, T − 0.1 (2 min), N – 0, and V − 0. Deep circuit: left leg TI = 29.8: K − 8, D − 0, T − 4.8 (120 min), N – 8, and V − 9 and right leg TI = 1.1: K − 1, D − 0, T − 0.1 (2 min), N – 0, and V − 0. Please note that when the lymph nodes are not visualized (as in c), a T value is assigned that is equal to the time taken from injection of the tracer and the late image acquisition—120 min)