Echo formation - PowerPoint PPT Presentation

Multiple Coherence Pathways

Multiple Coherence Pathways. T E. T E. Simple spin echo. spin echo. 90 y. 180 x. d. a. b. c. stimulated echo. Hahn echo. 90 y. 90 x. 90 x. d. e. a. b. c. f. T M. T E. T E. T E. Hahn (90-90) and stimulated (90-90-90) echoes. Hennig Fig. 2. Repeated flip  =90 o.

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11: Echo formation and spatial encoding

11: Echo formation and spatial encoding. What makes the magnetic resonance signal spatially dependent ? How is the position of an MR signal identified ? Slice selection What is echo formation and how is it achieved ? Echo formation Gradient echo sequence

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519 views • 16 slides

11: Echo formation and spatial encoding

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183 views • 16 slides

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