Myocardial perfusion imaging with PET.

Area of Science:

• Cardiology
• Nuclear Medicine
• Radiology

Background:

• Noninvasive assessment of coronary artery disease (CAD) presents diagnostic challenges.
• Myocardial perfusion imaging (MPI) is a key diagnostic modality for CAD.
• Cardiac positron emission tomography (PET) is the gold standard for MPI due to its quantitative capabilities.

Purpose of the Study:

• To highlight the role of cardiac PET MPI in noninvasive CAD assessment.
• To emphasize the benefits of quantifying absolute myocardial blood flow.
• To discuss the added value of hybrid imaging in CAD diagnosis.

Main Methods:

• Utilizing cardiac positron emission tomography (PET) for myocardial perfusion imaging (MPI).
• Measuring absolute myocardial blood flow in addition to relative radiotracer distribution.
• Employing hybrid imaging techniques by fusing coronary computed tomography angiography (CCTA) with MPI.

Main Results:

• Cardiac PET MPI provides quantitative assessment of myocardial blood flow.
• Quantification of perfusion enhances diagnostic accuracy and prognostic value in CAD.
• Hybrid imaging combining CCTA and PET MPI offers incremental diagnostic value over stand-alone methods.

Conclusions:

• Cardiac PET MPI is a powerful tool for noninvasive CAD evaluation.
• Absolute myocardial blood flow quantification significantly improves diagnostic and prognostic capabilities.
• Hybrid imaging represents a valuable advancement for comprehensive CAD assessment.