Cardiac Imaging

Multimodality imaging integration for comprehensive cardiovascular diagnosis and procedural planning.
Headline: Cardiac Imaging: Multimodality Integration for Precision Cardiovascular Medicine
Introduction:
Contemporary cardiovascular medicine demands more than proficiency in a single imaging modality — it requires the ability to integrate cardiac magnetic resonance (CMR), cardiac computed tomography (CCT), nuclear cardiology, and positron emission tomography (PET) into a cohesive diagnostic strategy. Each modality offers unique strengths: CMR provides unparalleled tissue characterization and functional assessment; CCT delivers exquisite anatomical detail and non-invasive coronary visualization; nuclear techniques offer metabolic and perfusion insights; and PET imaging enables molecular-level disease detection. The mCardio Cardiac Imaging module is designed to develop multimodality literacy, guiding learners in selecting the right test for the right patient at the right time, interpreting findings across modalities, and understanding the complementary roles of imaging in diagnosis, risk stratification, and procedural planning — particularly for electrophysiology and structural heart interventions.
Core Learning Pathways:
🧲 Cardiac MRI (CMR): Tissue Characterization & Functional Assessment
Master the most comprehensive non-invasive cardiac imaging modality. Learn CMR physics fundamentals, pulse sequences (balanced steady-state free precession [bSSFP], T1-weighted, T2-weighted, late gadolinium enhancement [LGE]), and functional assessment techniques (cine imaging for volumes and ejection fraction, phase-contrast for flow quantification). Deep-dive into tissue characterization: LGE patterns for ischemic versus non-ischemic cardiomyopathy, T1 mapping and extracellular volume (ECV) quantification, T2 imaging for edema, and the diagnosis of myocarditis, amyloidosis, sarcoidosis, and iron overload. Includes stress perfusion CMR for ischemia detection.
💻 Cardiac CT (CCT): Coronary Anatomy & Structural Planning
Comprehensive coverage of cardiac computed tomography. Master coronary CT angiography (CCTA) for non-invasive coronary visualization, including plaque characterization (calcified, non-calcified, mixed), stenosis quantification, and the role of fractional flow reserve derived from CT (FFR-CT). Explore coronary calcium scoring for risk stratification. Dedicated coverage of structural heart planning: left atrial and pulmonary vein anatomy for AF ablation, left atrial appendage (LAA) morphology and sizing for occlusion devices, transcatheter aortic valve replacement (TAVR) annular measurements, and mitral valve planning for transcatheter interventions. Includes radiation dose optimization and contrast management.
️ Nuclear Cardiology: Perfusion & Viability Assessment
Master myocardial perfusion imaging (MPI) with SPECT (single-photon emission computed tomography). Learn radiotracer pharmacology (technetium-99m sestamibi, tetrofosmin, thallium-201), stress protocols (exercise, pharmacological with adenosine, regadenoson, or dobutamine), and image interpretation (fixed versus reversible defects, transient ischemic dilation, lung uptake). Understand the diagnostic and prognostic value of MPI in coronary artery disease, including risk stratification and revascularization decision-making. Covers gated SPECT for functional assessment and the emerging role of solid-state cameras.
⚛️ PET Imaging: Metabolic & Molecular Characterization
The frontier of non-invasive cardiac imaging. Master positron emission tomography (PET) for myocardial perfusion (rubidium-82, nitrogen-13 ammonia) with absolute myocardial blood flow (MBF) and myocardial flow reserve (MFR) quantification — the gold standard for detecting microvascular dysfunction and balanced ischemia. Deep-dive into metabolic imaging with FDG-PET for viability assessment in ischemic cardiomyopathy and the diagnosis of cardiac sarcoidosis, vasculitis, and infective endocarditis. Includes the integration of PET with CT (PET/CT) and MRI (PET/MRI) for hybrid imaging.
🎯 Imaging for Electrophysiology: Procedural Planning & Guidance
Dedicated coverage of imaging’s critical role in EP procedures. Master pre-procedural planning for catheter ablation: pulmonary vein anatomy and variants on CCT or CMR, left atrial volume and fibrosis assessment (delayed enhancement CMR), LAA anatomy for occlusion device selection, and ventricular substrate characterization (LGE-CMR for scar mapping in VT ablation). Covers intraprocedural imaging integration: electroanatomic mapping fusion with CT/MRI, intracardiac echocardiography (ICE) for transseptal puncture and catheter visualization, and post-procedural complication detection (pericardial effusion, pulmonary vein stenosis, atrial esophageal fistula).
The mCardio Approach to Cardiac Imaging Learning:
“No single imaging modality holds all the answers. Excellence in contemporary cardiology lies not in mastering one technique, but in understanding the unique strengths and limitations of each modality, selecting the right test for the clinical question, and integrating multimodality findings into a unified diagnostic narrative that guides precise, personalized patient care.”