ＣＴ冠状扫描已成为鼻腔及鼻窦影像学检查的首选。鼻腔或鼻窦典型冠状位扫描 ,应以ＯＭＬ的垂线为基线 ,以利于清楚显示窦口 -鼻道复合体、鼻中隔和鼻腔等鼻腔及鼻窦的冠状位结构 ,为放射科及耳鼻喉科医师提供确切全面的正常解剖及病变。现代许多高档螺旋ＣＴ采用仰卧式冠状头 CT coronary angiography has become the first choice for nasal and sinus imaging. A typical coronal scan of the nasal cavity or paranasal sinus should be based on the perpendicular of the OML to facilitate a clear visualization of the coronal structures of the nasal and paranasal sinuses, such as sinus ostiomeatal complex, nasal septum and nasal cavity, for radiology and otolaryngologists Exact and complete normal anatomy and lesions. Many modern high-grade spiral CT with supine crown