Figure 1
From: Robust free-breathing SASHA T1 mapping using high-contrast image-based registration
a) Partial sequence diagram showing image acquisition for non-saturated and saturation recovery images, with primary image data marked in blue and high-contrast (HC) data in dashed red. b) Acquired k-space for the primary SASHA-VFA images are reconstructed using GRAPPA and partial Fourier in the PE direction. The high-contrast image is created by replacing the center of k-space with the HC data in a key-hole fashion. c) Images from a healthy volunteer showing the primary SASHA-VFA images (used to calculate T1 maps), high-contrast images, and the difference between primary and high-contrast images for both non-saturated and TS images.