Magnetic Resonance Angiography (MRA) for the Diagnosis of Atherosclerosis

Status Completed

Clinical Trial Summary

Magnetic Resonance Angiography (MRA) is a method used to evaluate arteries and veins without the use of invasive catheters or x-rays (radiation). MRA technique has been continuously improving and has become more accurate at diagnosing problems of narrowing in blood vessels. However, MRA has a difficult time detecting narrowing in small blood vessels, limiting its use to large arteries.

The purpose of this study is to recruit patients diagnosed with or suspected of having, atherosclerosis (hardening of the arteries) to participate in a series of new state-of-the-art diagnostic tests using MRA.

This study is a combined effort between the National Institutes of Health (NIH), Uniformed Services University of the Health Sciences (USUHS), and General Electric Medical Services and is supported a Cooperative Research Agreement is to (CRADA).

The goal of this study is to improve MRA to the point that it can reliably replace diagnostic x-ray catheter angiography in the evaluation of patients with atherosclerosis.

Clinical Trial Description

Contrast Enhanced Magnetic Resonance Angiography (MRA) is a developing technology that permits the non-invasive evaluation of arterial and venous structures without the need for x-ray based catheter angiography. While dramatic progress has been made in the last few years, there are still substantial limitations in the accuracy of MRA in judging stenoses and detecting small accessory vessels. The purpose of this study is to recruit patients with suspected or documented atherosclerotic disease for evaluation with state-of-the-art MRA using new surface coils, new pulse sequence designs, novel contrast administration strategies, and advanced image processing algorithms. This work represents a collaboration between NIH, USUHS and General Electric Medical Systems and is supported by a Cooperative Research Agreement (CRADA). The goal of this pilot study is to improve MRA to the point that it can reliably replace diagnostic x-ray catheter angiography in the evaluation of patients with atherosclerotic disease. ;

Study Design

N/A

Related Conditions & MeSH terms

Atherosclerosis

Clinical Trial Details

NCT number	NCT00001841
Study type	Observational
Source	National Institutes of Health Clinical Center (CC)
Contact
Status	Completed
Phase	N/A
Start date	March 1999
Completion date	December 2004

View Details

See also
Status	Clinical Trial	Phase
Recruiting	`NCT05052918` - The Effect of Exercise and Metformin on Carotid Intima-media Thickness in Patients With Prediabetes	N/A
Recruiting	`NCT04511234` - Sirolimus Coated Balloon Versus Standard Balloon for SFA and Popliteal Artery Disease	N/A
Completed	`NCT05906797` - Impact of Non-surgical Periodontal Therapy in the Improvement of Early Endothelial Dysfunction in Subjects With Periodontitis.	N/A
Completed	`NCT03273972` - INvestigating the Lowest Threshold of Vascular bENefits From LDL Lowering With a PCSK9 InhibiTor in healthY Volunteers	N/A
Suspended	`NCT02932176` - Machine Learning for Handheld Vascular Studies
Recruiting	`NCT05158257` - Clinical Of Plain Balloon Dilatation Combined Stent Versus Endovascular Debulking Combined Drug-coated Balloon to Treat Arteriosclerosis Occlusive Disease of Lower Extremity	N/A
Completed	`NCT01212900` - Randomized Trial of Imaging Versus Risk Factor-Based Therapy for Plaque Regression	Phase 4
Completed	`NCT03697382` - Effect of Daily Steps on Fat Metabolism	N/A
Recruiting	`NCT06230406` - T-Mem GEne in Atherosclerosis
Completed	`NCT03654313` - Single and Multiple Ascending Doses of MEDI6570 in Subjects With Type 2 Diabetes Mellitus	Phase 1
Completed	`NCT00382564` - Magnetic Resonance Angiography to Diagnose Atherosclerotic Disease	N/A
Recruiting	`NCT02894931` - Effects of Dietary Interventions on Serum and Macrophage Atherogenicity	N/A
Not yet recruiting	`NCT02578355` - National Plaque Registry and Database	N/A
Completed	`NCT02998918` - Effects of Short-term Curcumin and Multi-polyphenol Supplementation on the Anti-inflammatory Properties of HDL	N/A
Recruiting	`NCT02265250` - Pilot Study-Magnetic Resonance Imaging for Global Atherosclerosis Risk Assessment
Completed	`NCT02268513` - Mediators of Atherosclerosis in South Asians Living in America (MASALA) Social Network Study
Completed	`NCT03393377` - Preventive Arterial Wall Phenotype and Low-dose Fluvastatin/Valsartan Combination	N/A
Completed	`NCT02224339` - New Technologies to Determine Carotid Plaque Vulnerability
Completed	`NCT02377310` - Pd/Pa vs iFR™ in an Unselected Population Referred for Invasive Angiography	N/A
Not yet recruiting	`NCT01923012` - Phase II Randomized Placebo-controlled Study With Vitamin K2 in Asymptomatic Calcified Carotid Stenosis	Phase 2

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.