CBCT成像在涎腺造影检查中的应用价值

Application Value of CBCT Imaging in Salivary Adenography

目的探讨CBCT成像技术在涎腺造影诊断涎腺疾病中的应用价值。方法对51例患者行涎腺造影术后,进行传统曲面体层摄影(traditional pantomography,TPAN)和CBCT扫描;利用CBCT容积数据重建多平面图像(multi-planar reconstructed,MPR)、合成曲断面图像(synthetic pantomography,SPAN)及3D图像,并与TPAN影像对比。结果51例涎腺造影后的CBCT-3D图像,能360°立体展示涎腺全貌,对涎腺导管扩张、狭窄及末梢导管“点状扩张”等病变特征的显示优势明显;其MPR三维图像对涎腺占位性病变(如阴性涎石、肿瘤)形成的充盈缺损显示更为清晰和准确。结论CBCT成像在涎腺造影检查中能以多种重建技术(MPR、SPAN、3D)立体展示涎腺导管系统及腺体形态改变,更有利于涎腺疾病诊断,加之体位舒适、操作简便,辐射剂量低等优点,在涎腺疾病诊断中具有独特的应用价值。

Objective To explore the application value of CBCT imaging in the diagnosis of salivary gland disease by sialography. Methods After sialography,51 patients performed traditional pantomography and CBCT scans,Multi-planar images(MPR),synthetic pantographs(SPAN) and 3D images were reconstructed from CBCT volume data and compared with TPAN. Results 51 salivary glands after sialography can display the full picture of salivary glands in 360 degrees on CBCT 3D images,and the lesion characteristics such as duct dilation,stenosis and distal catheter “punctate dilation” were obviously better than those of TPAN. Its MPR image showed the filling defect formed by salivary gland space-occupying lesions such as negative--“punctate dilation” was obviously better than that of TPAN. Its MPR image showed the filling defect formed by salivary gland space-occupying lesions such as negative sialolith and tumors more clearly and accurately. Conclusion CBCT imaging can stereoscopically display the ductal system and glandular morphological changes of the salivary glands with a variety of reconstruction techniques( MPR, SPAN and 3D) in sialography, which is more conducive to the diagnosis of salivary gland diseases,In addition,the advantages of a comfortable position,simple operation,low radiation dose,and so on,it has unique application value in the diagnosis of salivary gland diseases.