摘要
目的：通过CT值测定,观察心室、大血管动静脉内流体组织密度改变,并探讨其原因。方法：（1）回顾分析有贫血记录胸部CT 40例,腹部CT 21例;在PACS中找正常胸部CT 40例,腹部CT 21例,分别测量各感兴趣区CT值（x±s）进行比较。并计算每组左心室与室间隔、肝实质与肝血管内CT值之比。（2）随机选择头部CT 20例及胸部CT 40例影像资料,测量静脉窦、双颈内动脉、下腔静脉及胸主动脉CT值,观察动脉血与静脉血的密度差别。（3）对1例继发性红细胞增多症CT影像资料的观察,通过对兴趣区CT值的测定,结合血红蛋白浓度,了解血液CT值高于正常值的原因。结果：（1）贫血组与正常对照组各兴趣区如胸主动脉、左心室、右心室、腹主动脉CT值测量,对应点配对均数比较,差异有统计学意义（P〈0.01）。贫血组,左心室/室间隔：35%-87%;门脉/肝实质：26%-48%。正常对照组,左心室/室间隔：88-100%;门脉/肝实质：68-82%,配对均数比较,差异有统计学意义（P〈0.01）。（2）测量各兴趣区如颈内动脉、静脉窦、下腔静脉膈上段及同水平胸主动脉CT值后,代表动脉血与静脉血兴趣点配对均数比较,差异有统计学意义（P〈0.01）。（3）1例继发性红细胞增多症双侧颈内动脉、上矢状窦、乙状窦、左右心室、胸腹主动脉、双肾动脉CT值测量约55-70 HU,外周血血红蛋白浓度244-256 g/L。结论：通过CT值的简单测定可以诊断贫血和红细胞增多症;静脉窦密度稍高于脑实质及动脉血的原因除了静脉窦内血流缓慢及硬脑膜密度高以外,静脉血密度高于动脉血密度也是原因之一。
Objective： To observe or explore density change of fluid internal ventricle and big arteriovenous vessel by CT value measured. Method：（1） Retrospective analysis CT image data of 41 anemia patients, including 40 cases chest and 21 cases of abdominal CT inspection. To find normal chest CT 40 cases and abdominal CT 21 cases in PACS. respectively measured CT value of areas of interest（x±s）, and then make a comparison. Also calculate the ration of the left ventricle and the interventricular septum CT value or the ratio of the liver parenchyma and liver intravascular CT value in each group.（2） To Randomly select CT 20 cases of head and chest CT 40 example image data, measure venous sinus and double internal carotid artery CT value, inferior vena and thoracic aorta CT value. To compare density difference of arterial blood and venous blood.（3） In case of secondary erythrocytosis disease observation of CT image data, through the measurement of CT values of interest area, combining with the hemoglobin concentration, understand the cause of the CT value was higher than normal blood. Result：（1） CT value of all the interest in areas such as thoracic aorta, left and right ventricle the abdominal aorta in anemia group and normal control group. In corresponding points matching mean comparison, the difference was statistically significant（P〈0.01）. Anemia group, the left ventricle/ ventricular ：35%-87%;the portal vein/the liver parenchyma： 26%-48%. Normal control group, the left ventricle/ ventricular： 88%-100%; the portal vein/the liver parenchyma： 68%-82%. By comparing, the difference was statistically significant（P〈0.01）.（2） Measuring the interest area such as： internal carotid artery, venous sinus, inferior vena cava diaphragmatic upside segment and at the same level of the thoracic aorta. The area on behalf of arterial blood and venous blood was matching mean comparison（P〈0.01）.（3） In the case of secondary erythrocytosis disease of bilateral internal carotid arter
出处
《中国医学创新》
CAS
2015年第1期43-46,共4页
Medical Innovation of China
关键词
CT
心室及大血管
流体组织
密度
CT
Ventricular and large blood vessels
Fluid tissue
Density
