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.
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.
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2017, Vol. 28 
