Hybrid Intraprocedural Imaging Based on 2 Different Imaging Methods

Hybrid Intraprocedural Imaging From 2D-Strain-echocardiography and X-ray Based Biplane Coronary Angiography for Guiding Interventional Revascularization Therapy

The investigators will check the feasibility of an intraprocedural vitality diagnostics and the identification of an indication for Percutaneous transluminal coronary angioplasty (PTCA).

After myocard vitality diagnostics with MRI patients will underwent additionally an stress echocardiography within the exploration. By this ultrasound we will measure the LV mass and the ejection fraction per apical 2-, 3- and 4-chamber view.

In addition a 2D-strain-analysis will be done to measure the systolic and diastolic strain and also the circumferential and radial strain rate parameter (by depicting three parasternal short axis views in the basal, mid-ventricular and apical plane).

These measurements will be compared with the studies-conditioned MRI-finding (as reference) to find the optimal strain-parameter and the optimal cut-off-data for an intraprocedural vitality diagnostics of the single layers (endocardial, myocardial, and epicardial) for this patient group.

The data upraised through this are compared off-line to the MRI findings.

Inclusion Criteria:

• left ventricular wall motion abnormalities
• existent myocardial vitality MRI exploration
• reduced LV-function
• steady angina pectoris
• patients which are legally competent and which are mentally able to understand the study staff
• patients give their written consent

Exclusion Criteria:

• pregnancy or lactation
• acute or instable angina pectoris
• acute myocardial infraction in the last 3 month