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- W2372669229 abstract "Objective To probe role of lower-dose spiral CT in clinical settings. Methods The study fell into two phases as trial phase and clinical observation phase. The former had 100 cases, with 50 undergoing regular dose and 50 undergoing low-dose. According to body weight, the subjects were classified into three groups as 65 kg, 65~75kg,and 75 kg. Parameters for scanning with lower dose were slice thickness 10mm, helical pitch 1.5, tube voltage 120 kV, tube current 100 mA and time 360°/s..As for regular dose, parameters were the same with the low-dose group except for a tube current at 160 mA. CT findings were scored 5 ranks by two radiologists who did not know classification of either cases or imaging methods. After having confirmed preceding results, further observation of 1462 cases. Results During trial phase, the two radiolo- gists did not find obvious differences in imaging findings between the two doses in two body weight groups (65kg,65~75 kg,75kg). However, scores for regular dose were universally higher than that for lower dose. Imaging findings of lower-dose had a higher intensity for soft tissues of chest wall, mediastinum and noise inside the lesions, taking negative effects on determination of density and evenness however it was effective in identifying small caves and calcifications. Further scanning of chests of 1462 people with lower dose did not indicate that it obviously undermine correctness. Conclusion Lower-dose CT is able to replace regular dose one in imaging of chest." @default.
- W2372669229 created "2016-06-24" @default.
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- W2372669229 date "2006-01-01" @default.
- W2372669229 modified "2023-09-23" @default.
- W2372669229 title "Application of lower-dose spiral CT to imaging of chest" @default.
- W2372669229 hasPublicationYear "2006" @default.
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