ABSTRACT
Objective To compare and analyze the risk factors of cerebral insufficiency, and to explore the application of thermal texture maps (TTM) in the diagnosis and screening of cerebral insufficiency. Methods 8787 healthy subjects were selected as the research object, and theit clinical data were collected, including blood pressure, blood lipid, X-ray of cervical vertebra, Doppler ultrasound of the stiff artery, cranial magnetic resonance imaging (MRI) and TTM examination. Subjects were grouped according to the results of TTM examination of cerebral insufficiency, and high risk factors for cerebral insufficiency were comparatively analyzed. The results of TTM and MRI in diagnosis of cerebral ischemia were comparative analysis. Results Among the 8787 subjects, 3734 subjects (42.49％) had cerebral insufficiency (TTM positive group), and 5053 (57.51％) had no significant abnormalities (TTM negative group). The differences between the two groups in high risk factors were statistically significant, including obesity, abnormal low density lipoprotein cholesterol, smoking, alcoholism, hypertension, multiple cerebral ischemia and carotid atherosclerosis (all P<0.01). By taking the MRI as the gold standard, the sensitivity, specificity, positive and negative predictive value of brain blood supply TTM for diagnosing focal cerebral ischemia was 84.63％, 65.17％, 30.66％ and 95.88％, respectively. Conclusions TTM can be an important early warning index of cerebral insufficiency in disease despreventive and intervention.
ABSTRACT
Objective To compare and analyze the high risk factors of liver injury, and to explore the application of thermal texture maps (TTM) technology in the diagnosis and screening of liver injury. Methods A total of 3582 medical examiners were selected as subjects, and their general clinical data, the related physical and chemical test results and TTM results were collected. The relationship between TTM results and general clinical data and related physical and chemical results was statistically analyzed. The general clinical data and physical and chemical results of subjects with TTM negative and TTM positive liver injury were compared from the sample value statistics and the sample group comparison. Results The differences in the degree of liver damage and the main related indicators between the two groups were statistically significant (all P<0.05), except for the body mass and low-density lipoprotein cholesterol level. When using aminotransferase as the standard, the diagnostic sensitivity of TTM for liver injury was 93.18％, the specificity was 68.34％, the positive predictive value was 54.34％, and the negative predictive value was 90.32％. Conclusions TTM examination can not only reflect the state of liver injury, but also reflect the degree of injury. TTM is an important index and necessary supplement for evaluating liver injury.