目的: 探讨锥形束CT( CBCT) 在颌下腺导管结石检查及治疗中的应用价值。方法: 选取颌下腺导管
结石病人20 例，采用CBCT 和彩超联合检查，判断颌下腺导管结石的位置、形态、大小，并且对10 例形态较规则
的颌下腺导管结石进行测量，与术前CBCT 测量值进行对比分析。结果: 20 例病人中CBCT 颌下腺导管结石确
诊率为100%( 20 /20) ，彩超确诊率为80%( 16 /20) 。4 例彩超未查出导管结石的病人，经CBCT 检查发现1 例为
腺体内结石，2 例为泥沙样不成形钙化程度差的结石，1 例导管前端微小结石( ＜1mm) 。20 例均实施手术取石，
术中、术后证实位置、形态、大小与术前CBCT 检查结果基本吻合。测量10 例形态较规则的颌下腺导管结石测
量值与CBCT 测量值之间误差约在0～ 0．5mm 范围内。结论: CBCT 在颌下腺导管结石的术前检查诊断可靠，形
态的观察、结石定位及大小的测量比较精准，对临床治疗能提供可靠的信息。

Objective: To explore the application value about cone －beam computed tomographic
( CBCT) in the Submandibular gland duct Sialoliths．Methods: 20 subjects who has Submandibular
gland duct Sialoliths underwent CBCT and ultrasound in order to detect the location of the submandibular
gland duct Sialoliths and shape， size，etc．10 cases of submandibular gland duct Sialoliths form the
rules was measured，compared with preoperative CBCT measuring value．Results: 20 subjects all underwent
CBCT and ultrasound，CBCT in submandibular gland duct Sialoliths diagnostic rate was 100%
( 20 /20) ，ultrasound submandibular gland duct Sialoliths diagnostic rate was 80%( 16 /20) ． Among
them 4 cases of unknown duct Sialoliths from Sialoliths， then underwent CBCT again，one Sialoliths from
submandibular gland，2 cases are muddy Sialoliths，and the last one is mini Sialoliths it’s dimension
less than 1 millimeter from the anterier of duct．20 cases all underwent surgery，During and after operation
we confirm the location shape and dimension Consistent with the results of preoperative CBCT．
Measure 10 subjects which form the rules of submandibular gland duct Sialoliths，compared with preoperative
CBCT measuring value， their error in 0．5millimeter．Conclusion: The results revealed that CBCT
is capable of diagnosing sialoliths．The acurate of location，demention and shape are very well．All in all
it can provide reliable information for clinical treatment．

R782

 收稿日期: 2016－09－23; 修回日期: 2016－11－09
基金项目: 内蒙古自治区自然科学基金( 2016MS( LH) 0811)
作者简介: 德乐黑巴特尔( 1983－) ，男，内蒙古医科大学附属医院口腔科主治医师，医学硕士。
通讯作者: 达林泰，主任医师，教授，医学博士，硕士研究生导师，E－mail: nmgykdxdlh@ 163．com 内蒙古医科大学附属医
院口腔科， 010050