Fig. 2 | Magnetic Resonance Materials in Physics, Biology and Medicine

Fig. 2

From: 3D magnetization transfer (MT) for the visualization of cardiac free-running Purkinje fibers: an ex vivo proof of concept

Fig. 2

2D MR images without (a) and with (b) MT (Δf = 5 kHz, B1 = 10 μT, D = 350 ms). c Comparison of contrast of magnetization (CNR) in function of the offset frequency (2, 3, 5 and 10 kHz) at various B1 amplitude (5, 10, 15 μT) and MT module duration (50, 150, 250, 350 and 450 ms). The contrast without MT is displayed at zero offset frequency. Maximal values for the contrast between tissue and fibers were found at frequency offset of 3 kHz, for amplitude of 10 μT applied during 350 ms and at frequency offset of 5 kHz, for amplitude of 15 μT applied during 450 ms (red ellipses)

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