Hyperpolarized 13C Pyruvate-MRI and FDG-PET in a Single Exam for the Prognosis of Ischemic Cardiomyopathy
University of Texas Southwestern Medical Center
15 participants
Jul 1, 2024
OBSERVATIONAL
Conditions
Summary
This prospective, non-blinded, single-center, translational research study aims to validate a multimodal advanced imaging exam for cardiac viability. The protocol utilizes three distinct imaging modalities: Single Photon Emission Computed Tomography Myocardial Perfusion Imaging (SPECT MPI), 18F-fluorodeoxyglucose positron emission tomography (FDG-PET), and Hyperpolarized Carbon-13 (HP-13C) Pyruvate Magnetic Resonance Imaging (MRI). Under this protocol, the SPECT MPI and FDG-PET exams will be used in combination to comprehensively assess myocardial viability. Concurrently, the HP-13C Pyruvate MRI will be utilized to provide additional insights into myocardial metabolism. The study will evaluate healthy volunteers to establish baseline parameters and patients with ischemic cardiomyopathy (ICM) before and after surgical revascularization.
Eligibility
Plain Language Summary
Simplified for easier understanding
This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.
Interested in this trial?
Get notified about updates and connect with the research team.
Interventions
HP-13C MRI is a metabolic imaging technique that enables real-time assessment of myocardial substrate utilization by tracking the conversion of hyperpolarized \[1-13C\] pyruvate to metabolic intermediates such as bicarbonate and lactate. This imaging modality provides insights into oxidative metabolism and mitochondrial function, facilitating the identification of metabolically active and ischemic myocardial regions in patients with ischemic cardiomyopathy.
FDG-PET is a molecular imaging technique used to assess myocardial viability by quantifying glucose uptake in cardiac tissue. This method differentiates viable myocardium, which retains metabolic activity, from non-viable scar tissue. FDG-PET is widely used in ischemic cardiomyopathy for viability assessment to guide revascularization decisions.
This procedure involves a Rest and a Stress SPECT Myocardial Perfusion Imaging Study. It uses myocardial perfusion imaging (MPI) with a radioactive tracer to compare pictures of the heart at rest and during stress, induced either by treadmill exercise or the medication Regadenoson.
Locations(1)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT06814587