Myocardial Strain Evaluation with Cardiovascular MRI: Physics, Principles, and Clinical Applications. July-August 2022-RG210174-Rajiah-2022-SG

RG210174-Rajiah-2022-SG

Pdf Summary

The study guide titled "Myocardial Strain Evaluation with Cardiovascular MRI: Physics, Principles, and Clinical Applications" offers a structured approach to understanding key concepts for evaluating myocardial strain through cardiovascular MRI (CMR). Please note that completing this guide alone does not award SA-CME credit; the associated test must be completed on the RSNA website.<br /><br />The guide contains a set of multiple-choice questions directed at enhancing comprehension of myocardial strain techniques. Key elements of the guide include:<br /><br />1. Orientation of Midwall Myofibers: The orientation of midwall myofibers in the left ventricle is queried, with options including right-handed helical, left-handed helical, circumferential, and longitudinal (apex to base).<br /><br />2. CMR Myocardial Strain Techniques: The document examines different CMR strain techniques, such as tissue phase mapping and myocardial tagging, to identify methods calculating myocardial velocities and trajectories.<br /><br />3. Strain Technique Postprocessing: Inquiry into which CMR strain technique utilizes postprocessing of routinely acquired cine SSFP images, with options like feature tracking and DENSE.<br /><br />4. Strain Values for Diagnosing Cardiotoxicity: The relative reduction in strain values necessary for diagnosing early cardiotoxicity in chemotherapy patients is highlighted, focusing on global longitudinal strain (GLS) and global circumferential strain (GCS).<br /><br />5. Lead Placement for Cardiac Resynchronization Therapy: The guide questions the optimal lead placement location in patients with left ventricular dyssynchrony to ensure a favorable response to therapy, considering the presence or absence of scar tissue and mechanical activation sites.<br /><br />This guide aids exam preparation by focusing on the fundamental aspects of myocardial strain evaluation using CMR, blending both clinical applications and theoretical principles.

Keywords

myocardial strain

cardiovascular MRI

CMR techniques

myofiber orientation

tissue phase mapping

myocardial tagging

cine SSFP images

cardiotoxicity diagnosis

cardiac resynchronization

lead placement