Lower Limb (Doppler) ultrasund

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Lower Limb — Doppler

Patient prep, limb position, tourniquet/odor cuff use Spectral/color settings: PRF, wall filter, gain, angle correction Sample volume placement, averaging & angle optimisation

Aorto-iliac → Femoral → Popliteal → Tibial mapping Collateral channels, perforators & pedal arch

PSV thresholds, velocity ratios & pre/post comparison Waveform morphology: triphasic → biphasic → monophasic

DVT detection: compressibility, augmentation, spectral phasicity Chronic thrombus clues: echogenicity, recanalisation

Flow volume technique, access surveillance & steal physiology Digital ischemia & reactive hyperemia testing

Pseudoaneurysm, intimal flap & AV fistula after trauma Distal embolus waveform changes & damped signals

Synovial hypervascularity, reactive hyperemia tests Limits of color for small vessel/pedal flow

PSV/EDV technique, angle documented & ratio calculation Suggested report wording, urgent flags & follow-up advice

Angle error, insonation technique & probe pressure effects Aliasing vs turbulence & PRF optimization

Pedal artery mapping, toe pressures & waveform interpretation Diabetic foot special considerations & calcified vessels

Minimum color/spectral images per study & labeling checklist Training scenarios, competency checks & protocol standardization

Lower Limb (Doppler) — Bilingual MCQ Panel

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