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Arterial Imaging of Inflammation and Resolution After Endovascular Surgery — AIIRES  

Peripheral Arterial Disease Clinical Trial

Official title:
Arterial Imaging of Inflammation and Resolution After Endovascular Surgery

Clinical Trial Summary

This study evaluates the local inflammatory and resolution response of patients undergoing peripheral vascular intervention like an angioplasty of the superficial femoral artery (SFA) or popliteal artery, or stenting of the iliac artery or SFA, through the use of Positron emission tomography-magnetic resonance imaging (PET/MRI). PET/MRI will be performed prior to intervention, one day and one week after intervention.

Clinical Trial Description

Magnetic resonance imaging (MRI) imaging allows for non-invasive visualization of anatomical structures while Positron emission tomography (PET) scans allow for the observation of molecular and cellular activities. Using a PET/MRI in patients with vascular injury post intervention with help evaluate the vascular inflammatory and resolution response in vivo. Acute vascular injury through endovascular intervention results in recruitment of inflammatory cells such as macrophages to the vessel wall. Macrophages are very metabolically active and consume glucose at a high rate. In PET/MRI, subjects are injected with 18F-Fluorodeoxyglucose (18F-FDG), a radioactively labeled glucose molecule which is consumed by macrophages. When 18F-FDG is consumed, it is retained within macrophages more avidly than other atherosclerotic lesion elements. Thus, FDG-PET provides a unique and noninvasive approach to quantitatively measure macrophage activity at the intervention site. This study will provide key pilot data for developing an imaging surrogate endpoint for pro-resolving mediator treatment intervention trials going forward. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03590769
Study type Interventional
Source University of California, San Francisco
Contact
Status Completed
Phase Phase 1
Start date June 1, 2017
Completion date September 3, 2019
View Details
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