心包疾病的CT诊断

DIAGNOSTIC ROLE OF CT IN PERICARDIAL DISEASES

对６１例心包疾病的ＣＴ表现进行了分析。少量心包积液主要聚集在前、左象限，中、大量积液则主要向左或左后象限扩展。根据积液厚度及分布象限可作积液量的评估。缩窄性心包炎ＣＴ均显壁层心包增厚，以心包腹侧面增厚为主，部分病人伴有心包钙化、房室扩大及腔静脉扩张。心包肿瘤侵犯或转移表现为心包不规则增厚或呈结节状改变。

T appearance of 61 cases of pericardial diseases was studied.Forty-one cases of pericardialeffusion were identified on chest CT. All the effusions were noted to be located in anterior quad-rants. Small amount of effusion was mainly collected in the anterior or anterior-left quadrants;middle or large amount of effusion was noted extending to left-posterior or right quadrants. Theauthors elected the criteria to classify the quantity of the effusions. When there was a samllamount of effusion,the maximum thickness of pericardial effusion was less than 15mm;with amiddle amount of effusion it was 15～30mm;with a large amount of effusion it was more than30mm. Middle and large effusions should extend to two or more quadrants.In all patients withconstrictive pericarditis,CT scan could detect the thickened parietal pericardium which was main-ly located in ventral side partially with pericardial calcification,atrioventricular and inferor or su-perior vena cava dilatation,When pericardia were infiItrated by tumors or had metastases theyshowed irregular thickening or nodulous shape,Differential diagnosis between pericardial effusionand pericardiaI thickness in CT scan were also discussed.