0815_LaRocca.pdf

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1、CTA and MRI/MRA in Peripheral Artery DiseaseGina LaRocca,MD,MHSc,FACC,FSCCT,FSCMR,FASEAssociate Professor of Medicine/Cardiology&RadiologyCo-Director of Advanced CV ImagingProgram Director of Advanced CV Imaging FellowshipMount Sinai/Icahn School of MedicineSeptember 11,2025Disclosures NoneBackgroun

2、d Peripheral artery disease(PAD)is the third most common vascular disease after coronary heart disease and stroke.As of 2010,22 million world-wide.Peripheral artery disease(PAD)is a manifestation of systemic atherosclerosis affecting 14%of the population.Computed tomography angiography(CTA)and magne

3、tic resonance angiography(MRA)are the most common advanced imaging modalities used for diagnosis,disease monitoring and procedure planning in PAD.Sigvant B et al.Eur J Vasc Endovasc Surg 51(3):395403Background Discuss the role of imaging before and after peripheral arterial interventions and how it

4、may improve intervention outcomes Ankle-Brachial Index(ABI)or Toe-Brachial Index(TBI)Pulse Volume Recordings Arterial Duplex Ultrasound Intravascular Ultrasound CT Angiograms MR AngiogramCT AngiographyCT Angiography Evaluation of vessel size,the character of wall:calcification,plaque,wall thickening

5、,wall enhancement&thrombus.Treatment planning by identifying the levels of disease,amount of calcification,the length of the disease,presence of an occlusion,the native vessel diameter,the status of the common femoral arteries for access and morphology of the aortic bifurcation.Provides crucial diag

6、nostic value in assessing emergent conditions:acute limb ischemiaDigital Subtraction Angiography(DSA)vs.Dual Energy CTA(DE-CTA)Digital subtraction angiography(DSA)has traditionally been considered the diagnostic gold standard for pretreatment evaluation of arterial stenoses in patients with PAD.Dual