Bastian Graser

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Transesophageal echocardiography is recommended to monitor left ventricular (LV) size and function in various operations. Generally, two-dimensional (2D) methods are applied intraoperatively. The aim of this study was to compare the accuracy and feasibility of 6 commonly used 2D methods to assess LV function during surgery. LV function in 120 consecutive(More)
   Over 40,000 annuloplasty rings are implanted each year in the USA to treat mitral regurgitation. However, the used measuring techniques to select a suitable annuloplasty ring are imprecise and highly depending on the expert’s experience. This can cause a re-occurrence of the mitral regurgitation or an annuloplasty ring dehiscence, and thus the necessity(More)
BACKGROUND Different types of mitral annuloplasty rings are commercially available. The aim of this study was to investigate the effect of implantation of six types of annuloplasty rings on the geometry and dynamics of the mitral valve. METHODS Three-dimensional echocardiography images of 42 patients were acquired to visualize the mitral valve annulus.(More)
Über 40.000 Mitralklappen Rekonstruktionen werden jedes Jahr in den Vereinigten Staaten durchgeführt. Dabei ist eine genaue Quantifizierung des Mitral Annulus erforderlich. Manuelle Vermessungen benötigen viel Zeit, die besonders in der klinischen Routine sehr wertvoll ist. Wir stellen eine Methode zur semi-automatischen Modellierung und Quantifizierung des(More)