Real-World Registry of the Rotarex(TM) Rotational Excisional Atherectomy System (XTRACT Registry)

Who May Qualify: 1. Subject or legally authorized representative provides written willing to sign a consent form using an willing to sign a consent form Form (ICF) that is reviewed and approved by the IRB for the site. 2. Subject is ≥22 years old at the time of signing the willing to sign a consent form. 3. Subject must have a lesion(s) in their infra-inguinal peripheral arteries that can be treated with the RotarexTM Rotational Excisional Atherectomy System according to Instructions For Use (IFU). 4. Rutherford 2-5 for chronic limb ischemia and Rutherford I to IIb for acute limb ischemia. 5. Target lesion can be crossed intra-luminally by guidewire. 6. At least one patent native outflow artery to the foot, free from significant stenosis(≥50% stenosis as confirmed by angiography) (ChLI Cohort only, not applicable to ALI Cohort). Who Should NOT Join This Trial: 1. Subject is unable or unwilling to comply with follow-up procedures and visits. 2. Subject has a target lesion in a vessel with less than 3 mm in diameter. 3. Subject is participating in another device or drug clinical trial that interferes with this protocol and confounds results. 4. Treatment plan includes use of a thrombectomy and/or atherectomy device other than RotarexTM Rotational Excisional Atherectomy System. 5. Life expectancy is below 1 year. 6. Pregnant, planning to become pregnant during the course of the study or nursing a child. Always talk to your doctor about whether this trial is right for you.