2 peripheral arterial triplex ultrasound waveform change dr ahmed esawy
1-peripheral arterial triplex ultrasound normal anatomy duplex Common iliac artery External iliac artery Common femoral artery Profunda femoris artery Superficial femoral artery Popliteal artery Tibio-peroneal trunk Posterior tibial artery Anterior tibial artery Peroneal artery Dorsalis pedis artery Angle Color Gain Doppler gain PRF BOX(size,direction),steering Sample volume, Gate size,Site of sample Base line Velocity scale Depth Wall filter Settings appropriate for specific examinations assigned by set-up/application keys Focus triphasic waveform Systolic Acceleration time spectral window laminar flow Color Doppler peripheral arterial disease Causes of leg pain ARTERIAL OCCLUSIVE DISEASE CAUSES Classification of vasculitis Biphasic waveform flow monophasic waveform flow bidirectional flow 1- Loss of third and then second phase of the wave¬form 2-Increased acceleration time (rapid rise of systolic deflection) 3-Widening of the systolic complex (5-Spectral broadening) 4-Damping of the waveform 5-Spectral broadening 6-fill in spectral windowe 7-Loss of sharpness of spectrum(irregular) 8-Turbulance 10-alaising 11-Rounding of PSV tip 12-Absent flow in occlusion 13-rising of PSV 14- reverse flow opposite systole 15-rapid fall of systolic deflection 16- rising of EDV Active Hyperemia postoperative vasospasm limb ischemia 2-peripheral arterial triplex ultrasound waveform change 3-peripheral arterial triplex ultrasound arterial stenosis ,occlusion 4-peripheral arterial triplex ultrasound vasculitis inflamed arteries (arteritis) macaroni sign Takayasu’s arteritis Giant cell arteritis Temporal artery Giant cell arteritis polyarteritis nodosa Kawasaki progressive systemic sclerosis Buerger disease Thromboangiitis obliterans (Buerger’s disease) Ormond's Disease 5-peripheral arterial triplex ultrasound hand,foot Triplex Raynaud Phenomenon secondary raynaud's phenomenon
