牙周骨质丢失与颈动脉钙化相关性的无创性MSCT评价  

MSCT noninvasive imaging evaluation of the correlation between periodontal bone loss and carotid calcifications

作　　者：孙静华 刘海霞[2] 张树全 SUN Jinghua LIU Haixia ZHANG Shuquan(Department of Radiology, the Branch of Tangshan Worker＇s Hospital, Tangshan 063004,Chin)

机构地区：[1]唐山市工人医院分院放射科,河北唐山063004 [2]唐山市工人医院放射科 [3]河北省滦县人民医院神经外科

出　　处：《实用放射学杂志》2016年第10期1517-1519,共3页Journal of Practical Radiology

基　　金：河北省科技计划项目（132777184）。

摘　　要：目的：通过多层螺旋 CT（MSCT）容积成像技术探讨牙周骨质丢失（PBL）与颈动脉钙化的相关性及临床意义。方法回顾性分析270例可疑动脉粥样硬化患者颈部的 MSCT 检查，将原始数据进行薄层重建后进行颅外颈部动脉全程钙化积分的测量，根据平均积分情况将患者分为3组：颈动脉钙化积分〈100分者为轻度钙化组；颈动脉钙化积分≥100分者为重度钙化组；颈部动脉无钙化者为对照组。应用 EBW4.5工作站对原始图像进行容积重现（VR）、多平面重建（MPR）、曲面重建（CPR）、最大密度投影（MIP）等多种后处理方法，观察记录各组口内存牙数及牙周骨质丢失情况。结果MSCT 容积成像技术可以在定量测量颈部动脉钙化程度的同时准确显示牙齿数目及牙周骨质丢失情况；颈动脉钙化者牙周骨质丢失牙位数高于对照组，存在统计学差异（P 〈0.01），且牙周骨质丢失牙位数与颈动脉钙化程度呈正相关。结论牙周骨质丢失与颈动脉钙化密切相关。MSCT 容积成像是定量评估颈动脉硬化与牙周炎严重程度的无创检查方法。Objective To detect the correlation between the periodontal bone loss and carotid calcifications by using MSCT.Methods Imaging materials of 270 patients who were suspected atherosclerosis and underwent MSCT were retrospectively studied.According to the score of carotid calcification,the patients were divided into three groups：slight calcification group （carotid calcification score 〈100）,severe calcification group （carotid calcification score ≥100）,and normal control group （carotid calcification score=0）.The original images were post-processed with volume rendering（VR）,multi planar reformation（MPR）,curved planar reformation（CPR）and maximum intensity projection （MIP）by using EBW4.5 workstation,and then the residual teeth number and the periodontal bone loss teeth were recorded in different groups.Results On MSCT,the carotid calcification score and the number of periodontal bone loss were displayed clearly.The number of the periodontal bone loss teeth in the calcification groups were significantly higher than those in the normal control group（P〈0.01）.Furthermore,the number of the periodontal bone loss teeth was positively correlated with the severity of carotid calcification.Conclusion The periodontal bone loss is highly correlated with the severity of the carotid calcification.The volume reconstruction technique of MSCT is a non-invasive diagnostic testing to detect the periodontal desease and to quantify carotid calcifications.

关 键 词：牙周骨质丢失 牙周炎 动脉钙化 颈部动脉硬化 计算机体层成像 

分 类 号：R781.4[医药卫生—口腔医学] R781.42[医药卫生—临床医学]