胸部CT平扫在诊断慢性高原病中的价值

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摘要目的：探讨高原地区胸部CT平扫主肺动脉影增宽，左、右心室腔内CT值与慢性高原病血红蛋白增多之间的关系，以及对慢性高原病的诊断价值。方法：选择居住地海拔2 500~4 600 m之间的53例确诊为慢性高原病的病例，回顾性分析并与正常胸部CT检查对比，对主肺动脉增宽，左、右心室腔内CT值，左室腔与室间隔CT值差值进行统计，不同组间采用独立样本ｔ检验，进行统计学分析，并与近期血红蛋白含量进行线性回归相关性分析。结果：53例慢性高原病患者左、右心室腔内CT值（（56.14±6.27） HU、（56.86±6.69） HU）增高，左室腔与室间隔CT值差值（（12.17±4.09） HU）增大，与无慢性高原病患者左、右心室腔内CT值（（38.02±3.42） HU、（38.85±3.86） HU）、左室腔与室间隔CT值差值（（2.02±3.07） HU）对比，t值分别为18.470、16.976、14.449，差异有统计学意义（Ｐ<0.01）；慢性高原病患者左、右心室腔内CT值、左室腔与室间隔CT值差值与血红蛋白含量呈正相关，r值分别为0.723、0.701、0.501，差异有统计学意义（Ｐ<0.01）；慢性高原病患者主肺动脉直径增宽，t值16.411，不同组之间具有统计学意义（Ｐ<0.01）。结论：高原地区胸部CT平扫主肺动脉直径增宽、左、右心室腔内密度增高程度、左室腔与室间隔CT值差值增大与慢性高原病有显著关系，可以为临床提供有价值的诊断信息。

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	曹成瑛
	陈红
	王生元
	罗焕

关键词 ：高原病；体层摄影术, X线计算机

Abstract：Objective: To investigate the relationship between the widening of main pulmonary arteries, the CT value of left and right ventricular cavity and the increase of hemoglobin in chronic mountain sickness, as well as their diagnostic value of chronic mountain sickness. Methods: A retrospective analysis was made in 53 cases of chronic mountain sickness who lived at an altitude between 2 500~4 600 m. By comparison with normal chest CT scan, a retrospective analysis was made in the widening of main pulmonary arteries, the CT value of left and right ventricular cavity and the difference between the CT values of the left ventricle and interventricular septum. An independent sample t test was used between different groups. The linear regression correlation analysis was made with the recent hemoglobin content. Results: In the 53 cases of chronic mountain sickness, the CT values of left and right ventricular cavities((56.14±6.27) HU, (56.14±6.27) HU) were increased. The difference between the CT values of left ventricle and the interventricular septum((12.17±4.09) HU) increased. Compared with the CT values of left and right ventricular cavities((38.02±3.42) HU, (38.85±3.86) HU) and the difference of CT values between left ventricle and interventricular septum((2.02±3.07) HU) in normal controls, as t values were 18.470, 16.976 and 14.449 with statistically significant difference(P<0.01). The CT values of left and right ventricular cavities and the CT value difference between left ventricular cavity and interventricular septum were positively correlated with the hemoglobin content in patients with chronic mountain sickness. The r values were 0.723, 0.701 and 0.501 respectively with significant difference(P<0.01). The main pulmonary arteries in chronic mountain sickness were widened, t value was 16.411 with statistical significance(P<0.01) between different groups. Conclusion: The widened diameters of main pulmonary artery, increased density of left and right ventricular cavity and the enlarged difference between left ventricle and interventricular septum on plain CT scan, are significantly correlated in chronic mountain sickness, which can provide valuable information for clinical diagnosis.

Key words： Altitude sickness Tomography, X-ray computed

收稿日期: 2016-03-29

PACS:	Ｒ594.3
	Ｒ814.42

通讯作者: 曹成瑛，青海省心脑血管病专科医院放射科，810012。E-mail：qhswit@qq.com

作者简介: 曹成瑛（1973-），男，青海互助人，副主任医师。E-mail：qhswit@qq.com

引用本文:

曹成瑛，陈红，王生元，罗焕. 胸部CT平扫在诊断慢性高原病中的价值[J]. 中国临床医学影像杂志, 2017, 28(1): 35-38.
CAO Cheng-ying, CHEN Hong, WANG Sheng-yuan, LUO Huan. Value of chest plain CT scan in the diagnosis of chronic mountain sickness. JOURNAL OF CHINA MEDICAL IMAGING, 2017, 28(1): 35-38.

链接本文:

http://www.jccmi.com.cn/CN/ 或 http://www.jccmi.com.cn/CN/Y2017/V28/I1/35

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