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en.wikipedia.org/wiki/Bullseye_(Destination)The Bullseye or Bull`s Eye is the name of the center of a target since 1833 and,. The center of the target could come from the practice of English archers, who use both. Jump up: “Bulls-Eye-| Ursprung und Bedeutung des Volltreffers von Online Etymology Dictionary”. www.etymonline.com. www.oxfordlearnersdictionaries.com/definition/english/bullseyeDefinition the name Bullseye in the Oxford Advanced Learner`s Dictionary. Meaning, pronunciation, image, examples of sentences, grammar, instructions for use, synonyms. Subscribe to America`s largest dictionary and get thousands of additional definitions and advanced search – ad-free! Zoltan Bakos, Hanna Markstad, Ellen Ostenfeld, Marcus Carlsson, Anders Roijer, Rasmus Borgquist, Combined preoperative information using a bullseye plot from speckle tracking echocardiography, cardiac CT scan, and MRI scan: targeted left ventricular lead implantation in patients receiving cardiac resynchronization therapy, European Heart Journal – Cardiovascular Imaging, Volume 15, Issue 5, May 2014, Pages 523–531, doi.org/10.1093/ehjci/jet233 Aus dem kardialen CT-Scan, The number and anatomical evolution of the branches of the coronary sinuses were delineated and transferred manually into a bullseye diagram, similar to the diagram used to present the echocardiography data. Multiplanar reformation (MPR) was performed so that the images matched the standard short-axis echocardiographic view. The segmentation and alignment of the images from different modalities was carried out manually: on the short-axis disc representing the basal segments, the mitral valve commissures were used as reference points (see Figure 2). At the intermediate segment, papillary muscles were used as reference points.

This made it possible to accurately identify the corresponding segments for all the imaging modalities used. The coronary sinus was observed from the ostium in the right atrium, while in the 17-segment model, all branches were recorded and the evolution of the veins was determined.24 A suitable vein was defined as a branch with a diameter of ≥1.5 mm, a length of ≥2 cm and an angle <150 ° of the large cardiac vein. The anatomy of the coronary vein has been described as the number of venous branches derived from the main coronary sinus between the vein of the middle heart (MCV, inferior interventricular sulcus) and the large cardiac vein (GCV, common in the anterior interventricular sulcus; see Figure 3). A standard nomenclature was used for branches, including posterior vein, inferolateral vein and VL. If there was a branch of sufficiently large diameter that came from the CVD, it was called a marginal inferolateral vein; Conversely, an anterolateral branch derived from GCV has been called the diagonal anterolateral vein. Recently, various image integration concepts have been tried, including MRI-based integration or a combination with preoperative CT and fluoroscopy images.32,33 However, functional and easy-to-use automated integration of cardiac MRI, cardiac computed tomography, and echocardiography has not yet been studied in a larger study. The combined bullseye diagram offers a new perspective by clearly visualizing the last mechanical segment with a viable myocardium and the corresponding vein crossing the same segment. It also offers the opportunity to present the necessary information to the implanter, who can plan the procedure in advance. The segmental position of each vein is known offline from the image interpretation, so the implanter only has to perform a cine-contrast venography of the CS and identify each vein (i.e. count from the ostium and select the appropriate numbered branch for lead implantation).

The segmental position of the vein is given by the prior interpretation of CT images, and the implanter can then choose between the basal segment and the middle segment of this vein, on the basis of which the target segment is located. www.thefreedictionary.com/bulls-eyeDefine direct blow. synonyms bulls-eye, pronunciation bulls-eye, translation bulls-eye, English dictionary definition of bulls-eye. N., pl. eyes. 1. the circular point,. The Bullseye diagrams showing the presence of an appropriate vein in each segment (A), the last activated segment (B) and the “perfect match” between the two (C), at the top of the image is a classic bullseye graph with the name of the respective anatomical segment on the right. Three bullseye charts appear at the bottom of the figure.

The Bulls-Eye table (A) represents the percentage of patients who had a vein suitable for electrode placement in each left ventricular segment shown; The bullseye diagram (B) shows the distribution of the location of the last mechanically activated segment (i.e. the target segment); and the Bullseye diagram (C) shows the availability of ideal segments in percentage terms, in the respective patients in whom an appropriate vein was also available (“perfect match” in the respective target segments).