About this trial
The study will use 18F-FAPI PET/CT to study myocardial fibrosis in patients diagnosed with myocardial infarction-associated ventricular aneurysm (MI-VA). Participants will receive the PET/CT scan during hospital stay, as well as serial echocardiography and telephonic follow-ups. Analysed will focus on the characterization of myocardial fibrosis and its correlations with the clinical prognosis in the patients.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Aged 18-75 years old
Diagnosed with STEMI or NSTEMI (ACC/AHA guidelines)
Half male and half female
Undergo CAG and PCI treatment;
Disqualifiers
Patients under the age of 18 years old;
Patients who are pregnant/breastfeeding;
Patients who has a previous history of allergy to radio tracers.
Trial population
Enrolled patients are expected to be diagnosed with ventricular aneurysm secondary to acute myocardial infarction (AMI), and are hospitalized at Renji Hospital, Shanghai Jiao Tong University School of Medicine. The investigators expect to enroll 20 patients diagnosed with MI-VA and 10 AMI patients without evidence of ventricular aneurysm.
Trial design
Cohort
Prospective
Treatments tested in this trial
18F FAPI-42 PET/CT scan
Diagnostic testDuring the hospital stay, participants will receive an 18F FAPI-42 PET/CT scan. 18F FAPI-42 is a new fibroblast activation protein (FAP)-specific tracer used for fibrosis imaging. PET/CT will be performed using the ultra-high-resolution digital PET/CT uEXPLORER (United Imaging, Shanghai, China)
Treatment groups
Trial outcomes
Primary outcomes
FAPI uptake (SUV max)
FAPI uptake is assessed by drawing regions of interest (ROI), and determined as the maximal standard uptake value (SUVmax).
FAPI uptake (SUV mean)
FAPI uptake is assessed by drawing regions of interest (ROI), and determined as the mean standard uptake value (SUVmean).
Secondary outcomes
Cardiac function assessed by echocardiography
Cadiac function is evaluated as left ventricular ejection fraction (LVEF, %) by echocardiography
The event rate of heart failure
The proportion (%) of participants who experience symptomatic heart failure. Heart failure is diagnosed based on symptoms such as shortness of breath and excess fluid, in the presence of a reduced LVEF (\<60%) as assessed by echocardiography.
Sponsors and contacts
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