Abstract #3814

Blindly trusting MRI radiomics? A study on radiomic features repeatability and reproducibility with a dedicated phantom

Linda Bianchini¹, João Santinha², Nuno Loução³, Mário Figueiredo⁴, Francesca Botta⁵, Daniela Origgi⁵, Marta Cremonesi⁵, Nickolas Papanikolaou², and Alessandro Lascialfari¹

¹Università degli Studi di Milano, Milan, Italy, ²Champalimaud Center for the Unknown, Lisbon, Portugal, ³Philips Healthcare, Lisbon, Portugal, ⁴Instituto de Telecomunicações, Instituto Superior Técnico, Lisbon, Portugal, ⁵Istituto Europeo di Oncologia (IEO) IRCCS, Milan, Italy

The radiomic features stability when MR scanners of different vendors or magnetic fields are involved is not known and is needed to support clinical studies. A study on the radiomic features repeatability and reproducibility was carried out with a pelvis phantom designed for radiomic purposes on three MR scanners, two of same field but different vendors and two of same vendor but different fields. The crucial results include a consistent percentage loss of features repeatability after phantom repositioning, suggesting the need for a features selection in studies involving patient’s repositioning. The limited reproducibility demands attention when dealing with multicentric studies.

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.