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. 2020 Feb 20;10:3117. doi: 10.1038/s41598-020-59949-6

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Single frames of the GRE CINE images of the pig heart acquired in a 60 kg pig in-vivo with parallel imaging acceleration factors R = 2, 3, 4, and 6. Spatial resolution 0.6 mm × 0.6 mm × 6 mm, FA = 35°, retrospective reconstruction 30 phases, frame at trigger delay = 270 ms. For the large number of PE-lines significant blurring of the heart is observed due to relatively large number of HB needed for acquisition and probably poor consistency of the acquired k-space. This effect is removed by higher acceleration (less PE-steps) and, thus, less amount of HB needed. With R = 3 and 4 the myocardium wall has clear sharp contours.