It can visualize the vessesls of the lower extremities . a femoral analysis is the study o choice.
Magnetic resonance angiography:
It helps to visualize the vessels of the lower extremities disease.
It can detects the venous reflex with greater sensitivity. Ascending venography also may be considered to obtain detailed anatomic information.
Ankle brachial indices (ABIs):
The ankle brachial indices and toe digital pressures with pulse volume recordings can provide the perfusion of the foot.
Xenon 133 clearance to measure blood flow can help to estimate the chance of wound healing.
Transcutaneous oxygen tension may be measured. The pressure of 30-35 mm Hg is sufficient for healing of more than 90% of wounds.