Abstract: Objective:  To discuss the clinical value of cone beam computed tomography (CBCT) in diagnosis of submandibular gland and Wharton’s duct sialoliths. Methods: 9 patients who have had tumefaction of submandibular gland were examined and analyzed by axial plane, coronal section, vertical plane and three-dimensional reconstruction imaging of CBCT. Results: 4 cases of salivary calculi located at Wharton’s duct. 4 cases occurred in the junction of submandibular gland and duct. Only one salivary stone located in the submandibular gland proper. One sialolith  discharged spontaneously before operation. The operation findings of 8 patients showed conformity with CBCT examination. Conclusion: CBCT can provide direct guidance for clinical treatment of submandibular gland and/or Wharton’s duct salivary stones.

Key words: cone beam computed tomography(CBCT), submandibular gland calculus, effective dose, styloid process

摘要： 目的：探讨锥形束CT（CBCT）对颌下腺结石的临床诊断价值。方法：利用CBCT的影像诊断系统对9例颌下腺肿大患者的下颌下区进行轴面、冠状面、矢状面及三维重建影像检查，同时进行测量分析。结果：8例患者经手术治疗后确定的结石大小、位置，与CBCT检查结果一致，1例术前自行排石。结论：CBCT对颌下腺结石有较高的诊断价值，能确定结石的数目、大小并定位，准确性高，为临床手术治疗提供直接依据。

关键词: 锥形束CT（CBCT）, 颌下腺结石, 有效剂量, 茎突

CLC Number: 

• R814.42