中国临床医学2025，Vol.32Issue(2)：200-206,7.DOI:10.12025/j.issn.1008-6358.2025.20241459
超长重复时间三维真实重建反转恢复序列评估内耳内淋巴积水成像的价值
Value of three-dimensional inversion-recovery with real reconstruction sequence using an ultralong repetition time for endolymphatic hydrops
赵梦龙 1蒋怀礼 2张澍杰 1刘壮 3刘锴 1吴迪 1黄新生 2曾蒙苏1
作者信息
- 1. 复旦大学附属中山医院放射诊断科,上海市影像医学研究所,上海 200032
- 2. 复旦大学附属中山医院耳鼻咽喉头颈外科,上海 200032
- 3. 复旦大学附属肿瘤医院放射诊断科,上海 200032
- 折叠
摘要
Abstract
Objective To evaluate the value of an optimized three-dimensional inversion-recovery with real reconstruction(3D-real IR)sequence with a longer repetition time(TR,16 000 ms)based on modulated flip angle technique in refocused imaging with extended echo train(MATRIX)in the endolymphatic hydrops(EH)imaging after intratympanic gadolinium(Gd)administration,and to compare it with a conventional 3D-real IR based on the turbo spin echo(TSE)sequence.Methods From July 2021 to November 2022,twenty-seven patients received both the conventional and optimized 3D-real IR sequences after bilateral intratympanic Gd administration.Images of the two sequences were qualitativly evaluated and compared.Contrast-to-noise ratio(CNR),signal-to-noise ratio(SNR),and area ratio of endolymph against the total lymphatic space from the two sequences were measured and compared.Results 14(25.9%)ears with insufficient contrast for the EH diagnosis on the conventional sequence were clearly displayed on the optimized sequence.Image score,CNR and SNR of the optimized sequence were significantly higher than those of the conventional sequence(P＜0.001).The scanning time of two sequences was similar.The area ratio of endolymph against the total lymphatic space in the cochlear was significantly higher on the conventional 3D-real IR than that on the optimized 3D-real IR(P＜0.001);there was no statistical difference in the vestibule between the two sequences.Conclusions Compared with conventional sequence,optimized 3D-real IR sequence with a longer TR may be better for evaluation of EH after intratympanic Gd administration.关键词
内淋巴积水/梅尼埃病/3D-real IR/重复时间/鼓室注射Key words
endolymphatic hydrops/Meniere's disease/3D-real IR/repetition time/intratympanic injection分类
临床医学引用本文复制引用
赵梦龙,蒋怀礼,张澍杰,刘壮,刘锴,吴迪,黄新生,曾蒙苏..超长重复时间三维真实重建反转恢复序列评估内耳内淋巴积水成像的价值[J].中国临床医学,2025,32(2):200-206,7.
