Abstract #3774
Suppression of artifacts in compressed sensing cine MRI
Shinji Kurokawa 1 , Yoshitaka Bito 2 , and Hisaaki Ochi 1
1
Central Research Laboratory, Hitachi, Ltd.,
Kokubunji-shi, Tokyo, Japan,
2
Hitachi
Medical Corporation, Kashiwa-shi, Chiba, Japan
Coherent ghost artifacts are likely to occur in 2D cine
compressed sensing MRI. They are caused by a lack of
randomness in sampling patterns and insufficient
parallel reconstruction. We propose a novel method that
suppresses these artifacts. A new constraint on mean in
the time direction is applied to a conventional
compressed sensing reconstruction. The method is
applicable to general compressed sensing MRI as well as
cine MRI. In numerical simulations, artifacts were
reduced to 33% in RMSE without temporal blurring. In
volunteer scanning, artifacts were suppressed without
image degradation.
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.
