Optional medical device diagnostics – depending on the results of the history, physical examination, and obligatory laboratory parameters – for differential diagnostic clarification.
- Doppler sonography (ultrasound examination that can dynamically depict fluid flows (especially blood flow)) or duplex sonography (ultrasound examination: combination of a sonographic cross-sectional image (B-scan) and the Doppler sonography method; medical imaging procedure that can dynamically depict fluid flows (especially blood flow)) of the lower legs
- Ankle-brachial index (ABI; examination method that can describe the risk of cardiovascular disease); in this case, the systolic blood pressure (first blood pressure value, in mmHg) is first measured on the ankle and upper arm of the lying patient. A quotient is then formed from these values (ankle blood pressure/upper arm blood pressure).
- Photolethysmography (hemodynamic examination method, which serves the diagnosis and follow-up of the so-called chronic venous insufficiency (CVI)), phlebodynamometry (venous pressure measurement at rest and under stress), venous occlusion plethysmography (VVP; serves to determine venous function) as functional examination methods of the leg veins.
- Computed tomography (CT; sectional imaging procedure (X-ray images from different directions with computer-based evaluation) or magnetic resonance imaging (MRI; computer-assisted sectional imaging procedure (using magnetic fields, that is, without X-rays)) of the lower leg.
- Intracompartmental pressure measurement – pressure measurement directly in the muscle cell in the lower leg.
- Capillary microscopy (procedure to detect microcirculatory disorders, i.e. the circulatory disturbances in the capillaries).
- Lymphatic drainage scintigraphy, indirect lymphography.
- Laser Doppler fluxmetry (non-invasive method based on the Doppler effect that detects cutaneous microcirculation).
- Transcutaneous oxygen measurement
