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Abstract #1863

Effective Application of Multiple Overlapping Thin-Slab Acquisition and Magnetization Transfer Contrast Pulse to Compatible Dual-Echo Arteriovenography (CODEA)

Sung-Hong Park1,2, Chan-Hong Moon1, Kyongtae Ty Bae1,2

1Radiology, University of Pittsburgh, Pittsburgh, PA, USA; 2Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA

MOTSA and MTC pulse were incorporated into a newly-introduced compatible dual-echo arteriovenography (CODEA) that was developed for simultaneous acquisition of TOF MRA and BOLD MRV. Both MRA and MRV acquired with the MOTSA-incorporated CODEA provided seamless vascular continuity over a large brain volume. The MTC pulse, applied only to K-space center region of the first echo, selectively suppressed the background tissue signal in the MRA, thus enhancing the arterial contrast, with little effect on the MRV. These results indicate that techniques commonly used in conventional TOF MRA such as MOTSA and MTC pulse are effectively applicable to the CODEA technique.