口腔颌面部间隙感染的磁共振影像表现及其临床意义

MRI Significance in the Diagnosis and Treatment of Oral and Maxillofacial Space Infections

目的:通过分析口腔颌面部间隙感染病例及其磁共振影像(magnetic resonance imaging,MRI)表现,探讨MRI在诊断口腔颌面部间隙感染中的意义。方法:回顾分析13例经临床证实的口腔颌面部间隙感染的MRI表现。包括咬肌间隙感染1例,翼下颌间隙感染1例,颞下间隙感染3例,舌下间隙感染1例,颊间隙感染1例,下颌下间隙感染1例,多间隙感染5例。并分析临床口腔颌面部间隙感染典型病例在应用MRI后的诊断结果和治疗方案设计。结果:蜂窝织炎在T1WI(T1 weighted imanging)呈等、低信号,T2WI(T2 weighted imanging)呈高信号;脓肿在T2WI上呈显著高信号,在增强T1WI上呈边界强化表现。MRI能够清楚地显示出软组织的肿胀,脂肪间隙的移位、缩减甚至消失。MRI能够正确指导口腔颌面部间隙感染复杂病例的诊断及治疗。结论:MRI可以清楚地显示口腔颌面部间隙的蜂窝织炎和脓肿,通过MRI可以了解病变发展的动态、程度和病变范围,从而对疾病做出正确的诊断,实施正确的治疗。

Objective： To study the clinical data and MRI （magnetic resonance imaging） appearances of oral and maxillofacial space infections, discuss the value of MRI in diagnosis and treatment of oral and maxillofacia] space infections was discussed. Methods： Data of 13 cases with oral and maxillofacial space infections were retrospectively reviewed, including 1 cases of masticator space infection, 1 case of pterygomandibular space infection 3 cases of temporal space infection, 1 case of sublingual space iufection, 1 case of buccal space infection, 1 case of submandibular space infection and 5 cases of muhispace infections. Results： Cellulitis was demonstrated low or moderate signals on T1WI, and high signals on T2WI. Abscess was showed high signals on T2WI, and rim enhangcement on enhanced T1WI. The swelling of the soft tissues and displacement, reduction, or disappearance of lipoid space could also be displayed by MRI. Conclusion： MRI technique displays the location, development stage and extensions of oral and maxillofacial space infections and provide useful information for diagnosis and therapy.