Abstract #2371

Synthetic MRI in differentiating benign from metastatic retropharyngeal lymph nodes: combination with diffusion-weighted imaging

Peng Wang¹, Shudong Hu², Weiqiang Dou³, Jie Shi³, and Heng Zhang¹

¹Affiliated hospital of Jiangnan university, Wuxi, China, ²ffiliated hospital of Jiangnan university, Wuxi, China, ³GE Healthcare, MR Research China, Beijing, China

Synopsis

Keywords: Head & Neck/ENT, Quantitative ImagingThis study aimed to evaluate MAGiC imaging (one synthetic MRI technique, syMRI) and its combination with diffusion-weighted imaging (DWI) in discriminating benign from metastatic retropharyngeal lymph nodes (RLNs). With MAGiC derived relaxation parameters, 58 patients with 21 benign and 42 metastatic RLNs were measured. The resultant T1, T2, PD and T1_SD values showed significant different values between benign and metastatic RLNs with an optimal diagnostic performance from T1_SD. Moreover, the combination of MAGiC, DWI, and morphological features demonstrated a significantly improved performance on overall diagnosis.

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