Improved Slice Profile and Reduced Fast Spin Echo Spacing with Variable-Rate Selective Excitation
نویسندگان
چکیده
The Variable-Rate Selective Excitation (VERSE) technique is shown to improve image quality by reducing fast spin echo spacing and improving slice profile. An algorithm was developed to use VERSE waveform reshaping to minimize echo spacing given specific prescription parameters and system constraints and was implemented for an SSFSE sequence to create shorter RF pulses with higher time•bandwidth products. Phantom and volunteer experiments demonstrate reduced crosstalk, and increased resolution.
منابع مشابه
Verse - Space
Introduction Use of nonselective refocusing pulses shortens the echo spacing and the echo train duration, and then improves the image sharpness in SPACE [3, 4] imaging. However, the nonselective refocusing pulses limit the application of slab selective acquisition. To overcome this limitation, a dual echo-spacing technique [1] has been presented before, using a combination of selective excitati...
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