Hatipoglu H G, Cetin M A, Selvi A, Yuksel E
Department of Radiology, Ankara Numune Education and Research Hospital, Turkey.
J Laryngol Otol. 2009 Dec;123(12):1331-7. doi: 10.1017/S0022215109991046. Epub 2009 Sep 24.
This study aimed to determine whether magnetic resonance imaging has a role in the evaluation of the sphenoid sinus and internal carotid artery. In addition, we aimed to establish reference measurements for the minimal distance between the internal carotid arteries.
The sphenoid sinuses and neighbouring internal carotid arteries of 90 patients were evaluated using sagittal T1-weighted and axial and coronal T2-weighted magnetic resonance images.
Sphenoid sinus pneumatisation was categorised as occipitosphenoidal (0 per cent), conchal (3.3 per cent), presellar (14.4 per cent) or sellar (82.2 per cent). The internal carotid artery protruded into the sphenoid sinus in 32.8 per cent, with a septum in 9.4 per cent. The incidence of sellar-type sphenoid sinus pneumatisation was higher in patients with protrusion of the internal carotid artery into the sphenoid sinus (p < 0.001). The incidence of presellar pneumatisation was higher in patients without internal carotid artery protrusion (p < 0.001). The minimal distance between the internal carotid arteries varied between 9.04 and 24.26 mm (mean, 15.94 mm).
Magnetic resonance imaging can provide useful information about the sphenoid sinus and internal carotid artery, prior to endoscopic sphenoidotomy and trans-sphenoidal hypophysectomy.
本研究旨在确定磁共振成像在蝶窦和颈内动脉评估中是否具有作用。此外，我们旨在建立颈内动脉之间最小距离的参考测量值。
使用矢状位T1加权、轴位和冠状位T2加权磁共振图像对90例患者的蝶窦和邻近的颈内动脉进行评估。
蝶窦气化分为枕蝶型（0%）、鼻甲型（3.3%）、鞍前型（14.4%）或鞍型（82.2%）。颈内动脉突入蝶窦的发生率为32.8%，其中有间隔的占9.4%。颈内动脉突入蝶窦的患者中鞍型蝶窦气化的发生率较高（p<0.001）。无颈内动脉突入的患者中鞍前气化的发生率较高（p<0.001）。颈内动脉之间的最小距离在9.04至24.26毫米之间（平均15.94毫米）。
在进行内镜蝶窦切开术和经蝶窦垂体切除术之前，磁共振成像可为蝶窦和颈内动脉提供有用信息。
