Neural-network classification of cardiac disease from 31P cardiovascular magnetic resonance spectroscopy measures of creatine kinase energy metabolism.
Meiyappan Solaiyappan, Robert G Weiss, Paul A Bottomley
https://pubmed.ncbi.nlm.nih.gov/31401975/Actively Recruiting
Led by Johns Hopkins University · Updated on 2026-03-09
500
Participants Needed
1
Research Sites
52 weeks
Total Duration
Researchers are studying the metabolism of the heart to understand how it produces the energy needed for normal heart contractions. This study uses magnetic resonance spectroscopy, a special MRI technique, to directly measure heart metabolism without the need for blood tests or biopsies. The study aims to explore whether reduced energy metabolism contributes to poor heart function in conditions like heart failure. The study involves measuring heart metabolism and function in healthy individuals and patients with conditions such as left ventricular hypertrophy, dilated cardiomyopathy, and coronary artery disease. Magnetic resonance spectroscopy is performed during rest and stress to assess various metabolic markers in these groups. Participants will undergo magnetic resonance spectroscopy scans to evaluate energy metabolism markers like phosphocreatineadenosine triphosphate ratio and creatine kinase flux. The study also collects data on other metabolites and sodium distribution in the heart. Researchers monitor these measures to better understand heart metabolism differences across conditions. The study began in 1988 and plans to continue through August 2028, including healthy volunteers aged 18 and older.
CONDITIONS
Magnetic Resonance Spectroscopy Studies of Cardiac Muscle Metabolism
R
Robert G. Weiss, MD
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Johns Hopkins University
Lead Sponsor
National Heart, Lung, and Blood Institute (NHLBI)
Collaborating Sponsor
You may qualify if you...
You will not qualify if you...
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Single day
Participants undergo magnetic resonance spectroscopy to assess heart metabolism and function.
1 visit (in-person)
Duration - Up to several months
Participants are observed for cardiac metabolism changes over time following the diagnostic evaluation.
Visit schedule varies depending on participant condition
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
0
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Meiyappan Solaiyappan, Robert G Weiss, Paul A Bottomley
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https://pubmed.ncbi.nlm.nih.gov/30526611/Johns Hopkins University
Lead Sponsor
National Heart, Lung, and Blood Institute (NHLBI)
Collaborating Sponsor