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首页> 外文期刊>Acta Radiologica >Acute cholecystitis: Quantitative and qualitative evaluation with 64-section helical CT
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Acute cholecystitis: Quantitative and qualitative evaluation with 64-section helical CT

机译：急性胆囊炎：64层螺旋CT定量和定性评估

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Background: Because of an expanded role for CT in the evaluation of patients with acute abdominal pain, it is not rare that acute cholecystitis is depicted by CT. However, the sensitivity and the specificity of a given CT variable for the diagnosis of acute cholecystitis is not known. Purpose: To quantitatively and qualitatively analyze acute cholecystitis at 64-section helical CT with submilimeter and isotropic voxels using a retrospective case-control study. Material and Methods: The 64-section helical CT examinations obtained with submilimeter and isotropic voxels in 40 patients with acute cholecystitis (25 men; mean age, 62.2years) were quantitatively and qualitatively analyzed and compared to those of 40 control subjects matched for age and gender. Receiveroperating characteristic (ROC) curve analysis was used to determine the most discriminating cut-off values for quantitative variables. Comparisons of qualitative variables were made using univariate analysis. Results: Pericholecystic fat stranding, mural stratification, pericholecystic hypervascularity, spontaneous hyperattenuation of gallbladder wall, short (≥32-mm) and long (≥74-mm) gallbladder axis enlargement, and gallbladder wall thickening (≥3.6-mm) were the most discriminating and independent variables for the diagnosis of acute cholecystitis (P < 0.0001). Using cut-off values found at ROC curve analysis, gallbladder wall thickening, and short and long gallbladder axis enlargement were the most sensitive findings (sensitivity = 92.5%; 95%CI: 79.6%-98.4%) for the diagnosis of acute cholecystitis. Conclusion: Acute cholecystitis is associated with myriad suggestive findings on 64-section helical CT. It can be anticipated that familiarity with these findings would result in more confident diagnosis of acute cholecystitis at 64-section helical CT.
机译：背景：由于CT在评估急性腹痛患者中的作用不断扩大，因此用CT描绘急性胆囊炎并不罕见。但是，给定CT变量对急性胆囊炎的诊断敏感性和特异性尚不清楚。目的：采用回顾性病例对照研究，定量和定性分析亚毫米波和各向同性体素的64层螺旋CT急性胆囊炎。材料和方法：对40例急性胆囊炎患者（25例男性，平均年龄62.2岁）使用亚毫米波和各向同性体素进行的64层螺旋CT检查进行了定量和定性分析，并与年龄和年龄相匹配的40名对照受试者进行了比较。性别。收货特性（ROC）曲线分析用于确定定量变量的最有区别的临界值。定性变量的比较使用单变量分析进行。结果：胆囊周围脂肪堆积，壁层分层，胆囊周围血管增生，胆囊壁自发性过度衰减，胆囊轴短（≥32mm）和长（≥74mm），胆囊壁增厚（≥3.6mm）最多。诊断急性胆囊炎的判别和独立变量（P <0.0001）。使用在ROC曲线分析中得出的临界值，胆囊壁增厚以及胆囊轴短时长变长是诊断急性胆囊炎最敏感的发现（敏感性= 92.5％; 95％CI：79.6％-98.4％）。结论：急性胆囊炎伴有64层螺旋CT的大量提示。可以预料，对这些发现的熟悉将导致在64排螺旋CT上对急性胆囊炎的诊断更有把握。

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