Abstract #3308
COMbining Phased array data using Offsets from a Short Echo-time Reference scan (COMPOSER)
Simon Daniel Robinson 1 , Wolfgang Bogner 1 , Barbara Dymerska 1 , Pedro Cardoso 1 , Gnther Grabner 1 , Xeni Deligianni 2 , Oliver Bieri 2 , and Siegfried Trattnig 1
1
High Field MR Centre, Department of
Biomedical Imaging and Image-guided Therapy, Medical
University of Vienna, Vienna, Vienna, Austria,
2
Division
of Radiological Physics, Department of Radiology,
University of Basel Hospital, Basel, Switzerland
We present a phase-sensitive method for the combination
of data from array coils for which there is no volume
reference coil, such as PTx and some UHF receive arrays.
A very fast variable echo-time (vTE) reference scan with
a sub-millisecond TE is used to measure the complex
sensitivity of the array. Dividing high resolution,
T2*-weighted (e.g. SWI) data by the vTE scan matches the
phase of the array elements, allowing the complex
signals to be combined. This approach is fast, robust,
requires no phase unwrapping of phase and outperforms
the rival methods tested.
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.
