A cardiac valve was phase contrast imaged using a setup of two stitched gratings. For the first time a stitched grating was used in

a phase contrast imaging setup. The so called "stitching" means glueing smaller gratings (easier to fabricate) together to form a larger area grating. The detector used was for the first time completely covered by the actual largest X-ray grating. As a sample a cardiac valve was used at TUM. In the image the vertical gap between the two gratings is nearly invisible in the centre of the image.

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