摘要
目的探讨CT增强扫描时"下腔静脉返流征"的形成原因及其临床意义。方法收集上腹部CT增强扫描过程中出现"下腔静脉返流征"的患者148例,其中23(16%)例有心肺疾病。对所有患者均行心脏彩超检查其下腔静脉返流情况。结果 148例"下腔静脉返流征"表现患者中136例(91.9%)逆流至第二肝门以内,12例(8.1%)逆流至肝静脉或超过第二肝门;彩超检查14例(9.5%)有逆流。23例心肺疾病患者随访过程中14例(60.8%)"下腔静脉返流征"消失。结论 "下腔静脉返流征"多数为高压注射器加压所致的右房压力一过性增高所引起,部分可由心肺病变致使右房压力病理性增高引起。
Objective To investigate the formation reasons and clinical significance of inferior vena cave reflux sign （IVCRS） in contrast-enhanced CT scan. Methods One hundred and forty-eight cases with IVCRS revealed by enhanced abdominal CT scan were selected, and 23 （16%） of those patients had cardiopulmonary diseases. To determine whether there existed vena cave reflux, all cases were performed color Doppler ultrasound examination. Results IVCRS in the second hepatic portal and over the second hepatic portal （or hepatic vein） was showed in 136 patients （91.9%）, 12 （8.1%）, respectively. After follow-up, the IVCRS disappeared in 14 cases of all 23 patients with vena cave reflux. Conclusion IVCRS are induced by transient increased right atrial pressure caused by high-pressure injectors in most of cases. However. cardiooulmonarv diseases can also lead to IVCRS in some of those patients.
出处
《罕少疾病杂志》
2012年第6期39-41,共3页
Journal of Rare and Uncommon Diseases
关键词
下腔静脉
逆流
体层摄影术
X线计算机
超声
inferior vena cave
reflux
tomography, x-ray computed
ultrasound
