Use of Three-Dimensional Printed Models for Endovascular Planning and Follow-up in Patients Affected by Aorto-Iliac-Femoral-Popliteal Arterial Disease Undergoing Balloon Angioplasty. A Single-center, Single-blind Randomized Controlled Trial

Inclusion Criteria: * Age between 18 and 89 years; * Severe claudication or critical limb ischemia (Rutherford categories 3-5 \[Cronenwett and Johnston. Rutherford's Vascular Surgery 7th edition. Saunders Elsevier 2010\]) and indication already established for endovascular revascularization treatment (according to the current Italian SICVE guidelines); * Atherosclerotic disease involving the aorto-iliac-femoro-popliteal segment; * Signed informed consent. Exclusion Criteria: * Age \<18 years or \>89 years; * Preoperative CTA not available for any reason (clinical contraindication, logistical impossibility); * Patients requiring urgent intervention (lack of time for 3D model printing); * Atherosclerotic disease limited to tibial vessels only (absent or non-significant atherosclerosis at aorto-iliac-femoro-popliteal level); * Patient refusal to participate in the study.