Functional MRI of the Lower Extremities

Status Not yet recruiting

Clinical Trial Summary

In this project, the investigators propose to use high-resolution magnetic resonance imaging (MRI) to measure blood perfusion in different groups of calf muscle. This imaging approach is standard of care for evaluation of coronary artery disease (CAD), and has never been successfully applied to PAD. Preliminary results show distinct patterns of muscle perfusion between healthy and PAD patients, and thus great promise of the technique. The investigators will first verify the reproducibility of the technique, and then compare the calf muscle perfusion measures in PAD patients against healthy age-matched controls. This comparison will test the feasibility of detecting functional abnormality in PAD patients. After the baseline scans, the PAD patients will opt to undergo a 12-week supervised exercise therapy, and then a post-therapy MRI scan. Comparison of the pre- and post-therapy measurements will indicate how the therapy improves the calf-muscle perfusion, and how this perfusion change correlates with increases in patient's walking ability.

The long term goals of this project are to develop an improved diagnostic test for patients with PAD to predict who will benefit from therapeutic intervention. The MRI perfusion studies of calf muscle can be performed in conjunction with routine peripheral MR angiography to assess the functional significance of vascular stenosis.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03423316
Study type	Interventional
Source	Massachusetts General Hospital
Contact	Lei Zhang
Phone	6177268627
Email	jeff.zhang@mgh.harvard.edu
Status	Not yet recruiting
Phase	N/A
Start date	October 31, 2020
Completion date	July 2021

View Details

See also
Status	Clinical Trial	Phase
Recruiting	`NCT06032065` - Sequential Multiple Assessment Randomized Trial of Exercise for PAD: SMART Exercise for PAD (SMART PAD)	Phase 3
Active, not recruiting	`NCT03987061` - MOTIV Bioresorbable Scaffold in BTK Artery Disease	N/A
Recruiting	`NCT03506633` - Impacts of Mitochondrial-targeted Antioxidant on Peripheral Artery Disease Patients	N/A
Active, not recruiting	`NCT03506646` - Dietary Nitrate Supplementation and Thermoregulation	N/A
Active, not recruiting	`NCT04677725` - NEtwork to Control ATherothrombosis (NEAT Registry)
Recruiting	`NCT05961943` - RESPONSE-2-PAD to Reduce Sedentary Time in Peripheral Arterial Disease Patients	N/A
Recruiting	`NCT06047002` - Personalised Antiplatelet Therapy for Patients With Symptomatic Peripheral Arterial Disease
Completed	`NCT03185052` - Feasibility of Outpatient Care After Manual Compression in Patients Treated for Peripheral Arterial Disease by Endovascular Technique With 5F Sheath Femoral Approach	N/A
Recruiting	`NCT05992896` - A Study of Loco-Regional Liposomal Bupivacaine Injection	Phase 4
Completed	`NCT04635501` - AbsorbaSeal (ABS 5.6.7) Vascular Closure Device Trial	N/A
Recruiting	`NCT04584632` - The Efemoral Vascular Scaffold System (EVSS) for the Treatment of Patients With Symptomatic Peripheral Vascular Disease From Stenosis or Occlusion of the Femoropopliteal Artery	N/A
Withdrawn	`NCT03994185` - The Merit WRAPSODY™ Endovascular Stent Graft for Treatment of Iliac Artery Occlusive Disease	N/A
Withdrawn	`NCT03538392` - Serranator® Alto Post Market Clinical Follow Up (PMCF) Study
Recruiting	`NCT02915796` - Autologous CD133(+) Cells as an Adjuvant to Below the Knee Percutaneous Transluminal Angioplasty	Phase 1
Active, not recruiting	`NCT02900924` - Observational Study to Evaluate the BioMimics 3D Stent System: MIMICS-3D
Completed	`NCT02901847` - To Evaluate the Introduction of a Public Health Approach to Peripheral Arterial Disease (PAD) Using National Centre for Sport and Exercise Medicine Facilities.	N/A
Not yet recruiting	`NCT02387450` - Reduced Cardiovascular Morbi-mortality by Sildenafil in Patients With Arterial Claudication	Phase 2/Phase 3
Withdrawn	`NCT02126540` - Trial of Pantheris System, an Atherectomy Device That Provides Imaging While Removing Plaque in Lower Extremity Arteries	N/A
Not yet recruiting	`NCT02455726` - Magnesium Oral Supplementation to Reduce Pain Inpatients With Severe Peripheral Arterial Occlusive Disease	N/A
Completed	`NCT02384980` - Saving Life and Limb: FES for the Elderly With PAD	Phase 1