Uwe Kirschstein

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C-arm CT is an emerging imaging technique in transcatheter aortic valve implantation (TAVI) surgery. Automatic aorta segmentation and valve landmark detection in a C-arm CT volume has important applications in TAVI by providing valuable 3D measurements for surgery planning. Overlaying 3D segmentation onto 2D real time fluoroscopic images also provides(More)
Transcatheter aortic valve implantation is an emerging technique to be applied in patients with aortic valve defects. Angiographic and fluoroscopic X-ray imaging with a C-arm system is crucial in these minimally invasive procedures. We describe a prototypical system based on the ability to acquire a 3D C-arm CT image during transcatheter aortic valve(More)
In this article a new system for navigated imaging and 3-d reconstruction is proposed. It features intraoperative and register-free image acquisition for interactive planning of a navigated intervention. Especially, the following aspects will be analyzed in this article: a) determination of correct positions and orientations of X-ray projection images, b)(More)
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