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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Magn Reson Med. 2012 Apr 12;69(3):812–817. doi: 10.1002/mrm.24288

Fig. 3.

Fig. 3

a) Signal decays during echo-train acquisition. The centre of k-space is sampled with maximum magnetization, while lines in the periphery are sampled with magnetization that has decayed due to T2 relaxation. After one ETL (24 echoes) is acquired, magnetization is allowed to recover to its steady state value, defined by TR and T1. The subsequent ETL is acquired in the next repetition of the pulse sequence. b) k-space signal modulation resulting from the implemented centric 3D-TSE sampling scheme. c) Blurring effect of the sampling scheme on a simulated phantom with relaxation parameters equal to those measured in the calf muscle of the volunteers. d) PSF resulting from the Fourier transform of the signal modulation in the y-direction with FWHM of 1.6 pixels.