Hyperpolarized 13C Pyruvate-MRI and FDG-PET in a Single Exam for the Prognosis of Ischemic Cardiomyopathy
Eligible age
20–80 yrs
Accepts
All genders
Locations
1 state
Healthy volunteers
Yes
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About this study
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.
Sponsor: University of Texas Southwestern Medical Center
You may qualify if…
- ✓ Male or Female, age 18-80 years. Patient scheduled for Coronary Artery Bypass Surgery as standard of care therapy per clinical guidelines.
- ✓ Presence of 1 or more stenotic coronary artery vessels. Left Ventricular Ejection Fraction (LVEF) ≤ 40%, or clinical indication for myocardial viability assessment.
- ✓ Able to tolerate FDG PET/MRI protocol and preparation (e.g., fasting state, glucose regulation).
- ✓ Medication use within 24 hours of the scan is allowed and will be reported. Negative pregnancy test for females of childbearing age (on the day of scanning).
- ✓ No known contraindications to 3T MRI, SPECT MPI, or FDG PET.
- ✓ Male or Female, age 18-80 years. No history of coronary artery disease or diabetes. Eligible for 3T MRI, SPECT, and FDG-PET. Negative pregnancy test for females of childbearing age (on the day of scanning).
You may not qualify if…
- ✕ Male or female, age \< 18 or \> 80 years of age. Patients not scheduled for CABG or those without confirmed coronary artery disease (CAD).
- ✕ History of prior myocardial infarction with transmural scar \> 50% (based on prior imaging or clinical history).
- ✕ Patient not eligible for 3T MRI (Any condition or device precluding safe MRI e.g., pacemakers, defibrillators, metal implants), SPECT (significant arrhythmias or hemodynamic instability), or FDG-PET (e.g., severely impaired glucose metabolism).
- ✕ Positive pregnancy test or females currently breastfeeding (on the day of scanning).
- ✕ Severe renal impairment (GFR \< 30 mL/min) or contraindication to FDG PET tracer.
- ✕ History of uncontrolled diabetes mellitus (HbA1c \> 9%) or inability to achieve stable glucose levels for FDG PET preparation.
- ✕ Healthy Volunteer Cohort
- ✕ History of coronary artery disease, diabetes, or other medical conditions deemed exclusionary by the study team.
Where it's recruiting
Dallas
Source: ClinicalTrials.gov · NCT06814587 · last updated 2026-09-14