Abstract #3285

Separating spin-compartment in arterial spin labeling using delays alternating with nutation for tailored excitation (DANTE) pulse

Shota Ishida¹, Hirohiko Kimura², Naoyuki Takei³, Yasuhiro Fujiwara⁴, Tsuyoshi Matsuda⁵, Yuki Matta¹, Masayuki Kanamoto¹, Nobuyuki Kosaka², and Eiji Kidoya¹

¹Radiological center, University of Fukui Hospital, Eiheiji, Japan, ²Department of Radiology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Japan, ³Global MR Applications and Workflow, GE Healthcare Japan, Hino, Japan, ⁴Department of Medical Image Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan, ⁵Division of Ultra-high Field MRI, Institute for Biomedical Science, Iwate Medical University, Shiwa-gun, Japan

Delays alternating with nutation for tailored excitation (DANTE) pulse is capable of uniform and flow velocity related signal suppression. DANTE-ASL was compared to T₂-mesurement in ASL (T₂-ASL) to validate what spin-compartment is suppressed by DANTE. T₂-ASL showed labeled signal remained in vascular compartment even at a PLD of 2.0 s. However, ASL signals using DANTE were approximately similar value in all the PLDs (0.5, 1.0, 2.0, and 3.0 s), because ASL signals in vascular compartment were suppressed selectively and sufficiently with concurrently preserving signals in tissue compartment. We could eliminate vascular compartment from total ASL signal using DANTE.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.