1000例螺旋CT胸部扫描方法与扫描技术分析

Spiral CT Scanning Method and Technique Applied to Chest Examine:1000 Cases Analysis

目的 分析螺旋CT胸部扫描方法及扫描技术对疾病的诊断价值 ,以便减少病人X线照射量及经济负担 ,且不影响诊断要求。方法 随机分析 10 0 0例胸部螺旋CT扫描的病例。常规扫描 92 7例 ,其中单纯平扫155例 ,直接增强扫描 74 7例 ,平扫加增强 2 5例。血管造影 73例。常规扫描中加做高分辨CT10 5例、薄层扫描 86例、动态扫描 6例、支气管成像 4 0例。结果 不同的扫描方法和扫描技术适用于不同的疾病。选择恰当的扫描方法及扫描技术 ,可减少病人X线照射 ,并能提高诊断的准确率。

Objective To evaluate the diagosis value of different spiral computed tomography(CT) chest scanning methods in the differentiation of various pulmonary diseases,in order to avoid x-ray irradiation damage and reduce patients economic burden,but the diagnosis criterion should be guaranteed still.Methods 1000 cases of chest scan by spiral CT were randomly analyzed.In 927 conventional scan cases,including 155 cases of simple plainscan,474 cases of direct contrast scan,25 cases of plain plus contrast scans,73 cases of CT angiography.In addition,high resolution CT(HRCT) for 105 cases,thin layer scan for 86 cases,dynamic scan for 6 cases,and 40 cases bronchgraphy diagnosis were also carried out in the conventional scanning cases.Results The different CT scanning methods were adapted for diffenent pulmonary diseases.An adaptive scanning method and technique can decrease X-ray irradiation dosage and rise accuracy of diagnosis.Conclusions Aptimal scanning method and technique should be alternative according the clinical need and the patients status.