Multimodal Imaging Techniques in Myocardial Ischemia: Current Applications and Future Prospects

Dear Colleagues,

The advancement in multimodal imaging techniques has significantly enhanced the diagnostic accuracy and management of myocardial ischemia. Contemporary modalities such as echocardiography, cardiac magnetic resonance imaging (CMR), intracoronary imaging, and coronary computed tomography angiography (CCTA) have revolutionized the evaluation of patients with suspected ischemic heart disease, both acute and chronic.

Echocardiography remains a cornerstone for initial assessment due to its wide availability, cost-effectiveness, and ability to provide a real-time evaluation of cardiac function and structure. Its role in stress testing, particularly in identifying wall motion abnormalities, is pivotal in diagnosing ischemia.

CMR stands out for its superior tissue characterization and functional assessment. It excels in detailed visualization of myocardial scarring and fibrosis, offering critical insights into myocardial viability and infarct size. CMR's ability to assess perfusion and detect microvascular obstruction further augments its utility in the acute setting, as well as in chronic ischemic conditions.

Intracoronary imaging, in particular intra-vascular ultrasound (IVUS) and optical coherence tomography (OCT), offers nowadays the opportunity to study the vessel wall disease, including plaque features, dissections, and post-stenting results.

CCTA has transformed the non-invasive assessment of coronary artery disease (CAD). Its high-resolution imaging facilitates the identification of both obstructive and non-obstructive coronary plaques, providing comprehensive insights into coronary anatomy. This enhances its role in ruling out CAD, especially in patients with low to intermediate pre-test probability. Emerging diagnostic categories such as myocardial infarction with non-obstructive coronary arteries (MINOCAs) and ischemia with non-obstructive coronary arteries (INOCAs) have underscored the necessity of these advanced imaging techniques. These modalities aid in the precise characterization of these entities, guide appropriate management, and reduce diagnostic ambiguity.

Through a collection of comprehensive reviews and original research, we invite experts in the field to contribute their findings and perspectives on the integration of echocardiography, CMR, intravascular imaging, and CCTA into clinical practice. This Special Issue aims to underscore the transformative impact of these advanced imaging modalities on patient outcomes and explore the potential of emerging technologies to further refine and revolutionize the field of ischemic heart disease diagnosis and management. We look forward to your valuable contributions, which will shed light on the future direction of this dynamic and pivotal area of cardiology.

Dr. Fausto Pizzino
Dr. Giovanni Concistrè
Guest Editors

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