Kardiale Resynchronisationstherapie 2.0: Physiologisches Pacing – His-Bündel- Und Linksschenkel-Stimulation // Cardiac Resynchronization Therapy 2.0: Physiological Pacing – His-Bundle- and Left-Bundle-Branch-Pacing

: As a tomographic method with a good spatial resolution, MRI allows identification of visceral atrial situs, type of ventricular loop, and relationship of the great vessels. From a comparison with angiographic and 2-D echocardiographic images, MRI provides accurate anatomic diagnosis in complex congenital heart diseases. In some instances, MRI can replace the need for invasive cardiac catheterization or reduce the number of catheteri-zations required in management of patients with complex congenital heart disease. MR imaging of complex con-gential heart diseases is necessary for preoperative assessment in adults and in infants, and influences surgical planning by knowledge of the anatomic topography of the vascular malformation and relation to the bronchial system.In cardiac tumors magnetic resonance imaging provides a non-invasive and three-dimensional assessment of masses involving the cardiac chambers, the pericardium, and the extracardiac structures. MRI has become an established method to yield complementary diagnostic information and to guide cardiac surgeons in the design of an appropriate therapeutic strategy. Furthermore, MRI allows to some extent characterization of tumor tissue. The