Tricuspid Valve S-Curves and Chamber Views: Implications for Transcatheter Tricuspid and Pulmonary Valve-Article: Tricuspid Valve S-Curves and Chamber Views: Implications for Transcatheter Tricuspid and Pulmonary Valve

Article: Tricuspid Valve S-Curves and Chamber Views: Implications for Transcatheter Tricuspid and Pulmonary Valve

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The review focuses on enhancing the precision of transcatheter interventions for tricuspid and pulmonary valves by optimizing imaging techniques. It highlights the complexity of addressing right-sided heart valves due to their anatomical location and challenges with imaging modalities such as transesophageal echocardiography (TEE) and fluoroscopy. Spatial resolution difficulties arise, often requiring advanced imaging like multislice computed tomography (MSCT) to improve outcomes.<br /><br />Central to the review is the "S-curve" concept, a fluoroscopic guidance method based on understanding the three-dimensional relationship of the tricuspid valve to other cardiac structures. By determining the optimal viewing angles, the S-curve enhances the accuracy and safety of valve interventions, reducing procedural duration, radiation exposure, and complications.<br /><br />The article outlines different chamber views—1-chamber, 2-chamber, 3-chamber, and 4-chamber—and their relevance in valve procedures. For instance, the 1-chamber view offers an 'en face' view of the tricuspid valve, crucial for gauging spatial relationships. Meanwhile, the 3-chamber view is particularly effective for minimizing foreshortening of catheters and optimizing device positioning within the heart.<br /><br />Additionally, the review emphasizes the integration of multimodal imaging, combining MSCT-derived fluoroscopic views with echocardiography to provide comprehensive guidance during interventions. Enhanced coordination of these views allows for more precise catheter navigation and deployment, vital for successful transcatheter valve replacements and repairs.<br /><br />Attitudinal descriptors, such as anterior/posterior orientation, are employed to refine understanding of heart anatomy in relation to standard imaging views, fostering clear communication across different diagnostic modalities. This approach aids in translating multimodal imaging data into practical, procedural guidance, offering significant improvements in the clinical application of transcatheter interventions for impaired right-sided heart valves.

Keywords

transcatheter interventions

tricuspid valve

pulmonary valve

imaging techniques

S-curve concept

multislice computed tomography

fluoroscopy

echocardiography

multimodal imaging

right-sided heart valves