127 negative RSR, shown in blue, indicates uterine contraction. Clear UP propagation from cervix to fundus (C2F) and from fundus to cervix (F2C) can be observed in Figure. 4A and B, respectively. Figure 5.4. A. UP time–space representation based on the RSR extracted from the anterior wall of the endometrium from a healthy volunteer. This plot shows clear propagation C2F. B. UP time–space representation based on the RSR extracted from the posterior wall of the endometrium from a healthy volunteer. This plot presents the F2C propagation. C. Corresponding k -space representation of (a): dominant spectral peaks (marked with red points) are present in the first and third quadrant representing C2F propagation. D. Corresponding k -space representation of B: dominant spectral peaks (marked with red points) are present in the second and fourth quadrant representing F2C propagation. E. Time evolution of the UP velocity in the C2F direction estimated from A. F. Time evolution of the UP velocity in the F2C direction estimated from B.
RkJQdWJsaXNoZXIy MTk4NDMw