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Abstract #0030

Spin Echoes in the Weak Dephasing Regime

Jakob Asslnder 1 , Simone Kcher 2 , Steffen Glaser 2 , and Jrgen Hennig 1

1 Dept. of Radiology - Medical Physics, University Medical Center, Freiburg, Germany, 2 Dept. of Chemistry, Technische Universitt Mnchen, Germany

It is shown that, for small flip angles, it is possible to form spin echoes after a single excitation pulse, where the time between the end of the pulse and the echo is longer than the length of the pulse itself. This is in contrast to standard Hahn-echo pulse sequences, where the length of the pulse sequence is in approximation equal to the time between the end of the composite pulse and the echo. The sequence is implemented into a FLASH sequence. At the example of lung pulmonary imaging signal enhancement is demonstrated in comparison to a standard FLASH sequence.

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