Analysis of low-dose lung CT screening results for military flying personnel in a sanatorium
10.3760/cma.j.cn113854-20220317-00032
- VernacularTitle:单中心军事飞行人员低剂量肺部CT检查结果分析
- Author:
Shanshan CHEN
1
;
Qinyan LU
1
;
Jianhua XU
1
;
Lei WANG
1
;
Nengbo ZHONG
1
;
Hanzhao LI
1
;
Minglong LIANG
1
Author Information
1. 空军杭州特勤疗养中心疗养二区，杭州 310007
- Publication Type:Journal Article
- Keywords:
Lung diseases;
Tomography, X-ray computed;
Physical examination;
Eligibility determination;
Flying personnel
- From:
Chinese Journal of Aerospace Medicine
2023;34(1):19-24
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the results of low-dose lung CT screening for military flying personnel, and to explore its influence on aeromedical identification.Methods:The imaging and aeromedical identification data of military flying personnel who underwent annual physical examination in Air Force Healthcare Center for Special Services Hangzhou were analyzed retrospectively. According to the imaging manifestations, the enrolled low-dose lung CT results were divided into the following 6 categories: no obvious abnormality, old lesions, pulmonary nodules, pulmonary bullae, pulmonary inflammatory lesions and extrapulmonary diseases. The detection rates of various examination results were statistically analyzed. The military flying personnel were divided into 20-29 years group, 30-39 years group, 40-49 years group and 50-59 years group, and they were divided into fighter pilots, bomb-trans-helicopter pilots, and bomb-trans-helicopter crew members according to the post. The differences in various examination results of flying personnel were compared among different age groups and post groups. The influence of examination results on the aeromedical identification results was analyzed in accordance with the 3-level conclusions as not affecting the conclusion of aeromedical identification, leading to the decline of health grade and leading to temporary grounding. The overall significance level α=0.05, and the pairwise comparison with P< α/statistical times was statistically significant. Results:A total of 2 274 flying personnel was enrolled. The detection rates of various examination results from high to low was no obvious abnormality (45.82%), old lesions (37.55%), pulmonary nodules (14.86%), pulmonary bullae (6.73%), pulmonary inflammatory lesions (2.59%) and extrapulmonary diseases (1.85%). There was significant difference among examination results of different age groups ( χ2=183.43, P<0.001). The detection rate of no obvious abnormality was the highest in 20-29 years group and 30-39 years group; the detection rate of old lesions was the highest in 40-49 years group and 50-59 years group. The detection rate of no obvious abnormality decreased with age, and the detection rate of old lesions increased with age (both P< α/6=0.008). The detection rate of pulmonary nodules in 40-49 years group was higher than that in 30-39 years group; the detection rate of pulmonary bullae in 50-59 years group was higher than that in the other age groups; the detection rates of pulmonary inflammatory lesions in 40-49 years group and 50-59 years groups were higher than those in the other age groups; the detection rate of extrapulmonary diseases in 50-59 years group was higher than that in 20-29 years group, and the differences were statistically significant (all P<0.008). There was significant difference in the results of flying personnel among different post groups ( χ2=33.78, P=0.001). The detection rate of no obvious abnormality in bomb-trans-helicopter crew members group was lower than that in bomb-trans-helicopter pilots group and fighter-trainer pilots group, but the detection rates of old lesions and pulmonary nodules were higher than those in the other groups, the differences were statistically significant (all P< α/3=0.017). The detection rate of pulmonary bullae in fighter-trainer pilots group was lower than that in bomb-trans-helicopter crew members group, and the difference was statistically significant ( P<0.017). Although majority of the detected results had no effect on the results of aeromedical identification, there was a significant difference in the proportion of health grade decline and temporary grounding caused by different detected diseases (Fisher exact test value was 82.81, P<0.001). Conclusions:Low-dose lung CT screening plays an important role in the physical examination and aeromedical identification for military flying personnel. It can be routinely used during the annual physical examination for flying personnel, and the aeromedical identification standards and strategies for lung related diseases should be updated synchronously.
