Abstract #1328

Development and Validation of a Radiomics Model in Differentiating Sinonasal Mucosal Melanomas from Sinonasal Lymphomas

Shengyong Li¹, Linying Guo², Jing Zhang¹, Yang Song³, Shengjian Zhang⁴, Rifeng Jiang⁵, Guang Yang¹, and Zuohua Tang²

¹Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, China, ²Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China, ³MR Scientific Marketing, Siemens Healthcare, Shanghai, China, ⁴Department of Radiology, Shanghai Cancer Center of Shanghai Medical School, Fudan University, Shanghai, China, ⁵Department of Radiology, Fujian Medical University Union Hospital, FuZhou, China

Synopsis

Keywords: Head & Neck/ENT, MultimodalSinonasal mucosal melanomas (SNMM) are clinically more aggressive than its cutaneous counterpart and presented markedly poor prognosis. To differentiate sinonasal melanomas from sinonasal lymphomas, a radiomics model was built using features from multi-parametric MRI, including T1-weighted imaging (T1WI), T2 weighted imaging (T2WI), DWI and C-T1WI. In this multicenter retrospective study, 189 patients diagnosed with SNMMs or sinonasal lymphoma were enrolled from three institutions. The proposed model achieved AUCs of 0.884 and 0.870 in the internal and external validation set, respectively.

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.