Abstract #2386

Zero TE based pseudo CT conversion: impact of different HU value assignment methods for bones in the Head.

Cristina Cozzini¹, Mikael Bylund², Sandeep Kaushik³, Joakim H Jonsson², Josef A Lundman², Mathias Engström⁴, Tufve Nyholm², and Florian Wiesinger¹

¹GE Healthcare, Munich, Germany, ²Umeå University, Umeå, Sweden, ³GE Global Research, Bangalore, India, ⁴GE Healthcare, Stockholm, Sweden

Patient specific and accurate pseudo CT are needed for the adoption of MR-only in the radiation therapy workflow. Zero TE (ZTE) acquisition has proven to be very robust and reliable for bone segmentation, with the additional advantage of showing a reproducible inverse linear correlation with corresponding CT HU for ZTE intensity values in the bone range. Here we specifically investigate the impact on the dose accuracy of continuous versus single HU value assignment for bones and the strength of the Zero TE inverse linear correlation to CT values for accurate pseudo CT conversion.

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.