Cardiac Computed Tomography: Technological Developments and Clinical Applications.

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Cardiac computed tomography (CT) is a key tool for coronary artery disease (CAD) screening.
• Technological advancements have improved diagnostic accuracy and reduced radiation exposure.
• Emerging CT capabilities extend beyond anatomical assessment to functional and tissue characterization.

Purpose of the Study:

• To review recent technological developments in cardiac CT.
• To highlight the expanding clinical utility of cardiac CT for comprehensive heart analysis.
• To guide clinicians in utilizing advanced cardiac CT in daily practice.

Main Methods:

• Review of technological advancements in cardiac CT, including multi-detector rows, motion correction, fluid dynamics analysis, stress perfusion, dual-energy imaging, and late contrast imaging.
• Discussion of applications such as coronary fractional flow reserve (FFR) measurement, myocardial ischemia detection, extracellular volume (ECV) analysis, and myocardial strain analysis.
• Emphasis on retrospective imaging for morphological and functional assessment of the entire heart.

Main Results:

• Cardiac CT now offers high accuracy for coronary artery stenosis detection with reduced radiation.
• Functional assessments like coronary FFR and myocardial perfusion are now feasible with CT.
• Advanced imaging techniques enable myocardial late enhancement and LV ECV analysis, previously limited to MRI.
• Myocardial strain analysis is becoming possible with retrospective cardiac CT.

Conclusions:

• Cardiac CT has evolved significantly, overcoming limitations of other modalities.
• The technology now provides comprehensive anatomical, functional, and tissue characterization of the heart.
• Cardiac CT is poised to become an indispensable tool for complete cardiac assessment in clinical practice.