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  Indian J Med Microbiol
 

Figure 1: Diagram of ultrashort time echo pulse sequence. (a) Two-dimensional semi-RF pulse combined with optimized selection gradient layer optimization of opposite polarity to motivate one layer, using two-dimensional radial motivation trajectories-filled k-space. (b) After excitation of a short rectangular hard pulse, three-dimensional radial track k-space is used. RF: Radiofrequency.

Figure 1: Diagram of ultrashort time echo pulse sequence. (a) Two-dimensional semi-RF pulse combined with optimized selection gradient layer optimization of opposite polarity to motivate one layer, using two-dimensional radial motivation trajectories-filled k-space. (b) After excitation of a short rectangular hard pulse, three-dimensional radial track k-space is used. RF: Radiofrequency.