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Life sciences · Interventional Study
ClinicalTrials.gov · September 28, 2026
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Interventional Study.
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Registry record from ClinicalTrials.gov (NCT01399385). This is a study registration, not published results. Lead sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Recruitment status: RECRUITING. Phase: NA. Study type: INTERVENTIONAL. Enrollment: 4000 participants (ESTIMATED). Conditions: Healthy, Obesity, Diabetes, Healthy Volunteers, Atherosclerosis. Interventions: DEVICE: MR Imaging Techniques - 1; DEVICE: MR Imaging Techniques - 2; DEVICE: MR Imaging Techniques - 3; DEVICE: MR Imaging Techniques - 4. Primary outcome measures: To develop and optimize clinical imaging protocols and techniques for fast high- resolution coronary MRA and wall imaging for the assessment of coronary and other main arteries structural distensibility, and endothelial functional parameters@... , within one month; To evaluate early MR imagery signs of arterial structural, distensibility, and endothelial functional disorders associated with atherosclerosis in a cohort of patients with known or suspected coronary atherosclerosis , within one month; To develop, implement, and optimize new non-invasive methods for characterization of the micro-environment in the thoracic and abdominal area utilizing specialized techniques , within one month. Brief summary: Background: \- Imaging tests, such as magnetic resonance imaging (MRI), can provide information about heart and blood vessels. The tests let doctors can see the amount of blood vessel narrowing and vessel wall thickness. This information may help diagnose and treat heart disease and other conditions that lead to heart attacks. Better MRI methods are needed to improve heart disease diagnosis, especially by avoiding the use of radiation. Researchers are testing new techniques to improve the quality of heart MRI, compared with more complex studies like catheterization or angiography. Objectives: \- To compare heart MRI techniques with other tests used to diagnose heart disease. Eligibility: \- People at least 18 years of age who either have or may have heart disease, or are healthy volunteers. Design: * Participants will be screened with a physical exam, medical history, and blood tests. * They will have an angiography to study the inside of blood vessels. This test is an x-ray study of the blood vessels. It will be done either separately or as part of a set of tests to diagnose possible heart disease. * Participants will have at least one and up to five MRI scans. The scans will involve different methods of studying the heart and blood vessels. Participants may also have a computed tomography scan to confirm the findings of an MRI scan. * No treatment will be provided as part of this protocol....