Eliezer Michael, Attyé Arnaud, Guichard Jean-Pierre, Vitaux Hélène, Guillonnet Antoine, Toupet Michel, Herman Philippe, Kania Romain, Houdart Emmanuel, Hautefort Charlotte
Department of Neuroradiology, Lariboisière University Hospital, Paris, France.
Department of Neuroradiology and MRI, Grenoble Alpes University Hospital, SFR RMN Neurosciences, Grenoble, France.
Laryngoscope. 2019 Jul;129(7):1689-1695. doi: 10.1002/lary.27793. Epub 2019 Jan 10.
OBJECTIVES/HYPOTHESIS: Because delayed post-contrast three-dimensional fluid-attenuated inversion recovery imaging sequences enable the distinction between the utricle and the saccule, we raised the hypothesis that patients with vestibular atelectasis (VA) could show unilateral collapse of the utricle and the ampullas on imaging.
Retrospective case series.
We retrospectively reviewed 200 patients who underwent 3 T magnetic resonance imaging (MRI) after intravenous administration of gadolinium. MRI scans were assessed for the presence of VA. The endolymphatic space was considered as collapsed when the utricle and at least two ampullas were not visible or were barely visible.
We reported four patients with VA on MRI responsible for atypical clinical presentations of acute vestibular deficit. All patients presented a specific involvement of the pars superior sensory captors (utricle, ampullas), preserving the pars inferior sensory captors (cochlea and saccule). This was confirmed both clinically and on MRI.
Our study is the first to describe in vivo unilateral collapse of the pars superior on delayed postcontrast MRI in patients with a clinical unilateral vestibular loss.
4 Laryngoscope, 129:1689-1695, 2019.
目的/假设：由于延迟增强三维液体衰减反转恢复成像序列能够区分椭圆囊和球囊，我们提出假设，即前庭肺不张（VA）患者在影像学上可能表现为椭圆囊和壶腹的单侧塌陷。
回顾性病例系列研究。
我们回顾性分析了200例静脉注射钆后接受3T磁共振成像（MRI）检查的患者。对MRI扫描结果进行VA评估。当椭圆囊和至少两个壶腹不可见或几乎不可见时，内淋巴间隙被视为塌陷。
我们报告了4例MRI显示VA的患者，这些患者表现为急性前庭功能障碍的非典型临床表现。所有患者均表现为上半部分感觉感受器（椭圆囊、壶腹）的特定受累，而下半部分感觉感受器（耳蜗和球囊）未受累。这在临床和MRI上均得到证实。
我们的研究首次描述了临床单侧前庭功能丧失患者在延迟增强MRI上体内上半部分的单侧塌陷。
4 《喉镜》，129:1689 - 1695，2019年。
