The role of multimodality cardiac imaging in the transplanted heart

Area of Science:

• Cardiology
• Transplant Medicine
• Medical Imaging

Background:

• Heart transplantation (HT) is a vital treatment for end-stage heart failure.
• Acute cellular rejection (ACR) and cardiac allograft vasculopathy (CAV) significantly impact patient survival and morbidity post-HT.
• Noninvasive methods are crucial for monitoring allograft health and detecting rejection or CAV.

Purpose of the Study:

• To review the clinical significance of ACR and CAV in adult heart transplant recipients.
• To discuss the application of various noninvasive imaging modalities in evaluating these post-transplant complications.

Main Methods:

• Literature review of noninvasive imaging techniques used after heart transplantation.
• Focus on echocardiography, cardiac computed tomography, myocardial perfusion imaging, and cardiac magnetic resonance.
• Analysis of their role in assessing cardiac allograft function and detecting ACR and CAV.

Main Results:

• ACR is a primary concern for 1-year mortality, while CAV affects 5-year survival.
• Noninvasive imaging modalities offer potential for early detection and management of ACR and CAV.
• Echocardiography, CT, MPI, and CMR have demonstrated utility in evaluating post-HT complications.

Conclusions:

• Noninvasive imaging is essential for the surveillance of heart transplant recipients.
• Early detection of ACR and CAV through these methods can lead to timely interventions.
• Advancements in imaging aim to improve long-term graft survival and patient outcomes after heart transplantation.