Abstract #3243

3D-FLAIR imaging with optimized scan parameters to visualize endolymphatic hydrops with intravenous gadolinium-based contrast media

Jinye Li¹, Lixin Sun¹, Long Li², Hui Zhao¹, Jing Tian¹, Gesheng Song³, Na Hu¹, Weiqiang Dou⁴, and Ruozhen Gong⁵

¹Department of Radiology, Shandong Provincial ENT Hospital, Shandong Provincial ENT Hospital affiliated to Shandong University, Jinan, China, ²Department of Medical Service, Shandong Provincial ENT Hospital, Shandong Provincial ENT Hospital affiliated to Shandong University, Jinan, China, ³Shandong province Qianfoshan Hospital, Jinan, China, ⁴GE Healthcare, MR Research China, Beijing, China, ⁵Gong Ruozhen Innovation Studio, Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, China

We aimed to explore the optimal scan parameters of 3D-FLAIR technique in labyrinthine lymph imaging for patients with vertigo disease. With different scan times and scan baselines applied, the corresponding 3D-FLAIR images were systematically compared. We found that the optimal scan time was 6hours after intravenous administration of GBCM. Additionally, the optimal scan baseline, aiming to obtain the relative maximum areas of the saccule, utricle and lateral semicircular canal to be displayed at the same level, is about 10.74±2.24 degrees from the anterior skull base. Therefore, using these optimal parameters, an accurate determination of endolymphatic hydrops can be achieved.

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