title: [The best scan parameters for low dose CT scan in early lung cancer screening].
abstract: OBJECTIVE
  The purpose of this study is to decide how to select the best scan parameters in low dose computed tomography screening.
  
  
  METHODS
  Use 140 kV, 20 mA, 30 mA, 40 mA, 50 mA, 200 mA scanning to get the images' intensity resolution and high contrast resolution, and select the images which can meet the national standard, Then get the scan parameters when the mA is lowest. Scan 60 patients using the standard CT and low dose CT separately to get the scan images. After that, two senior radiology doctors were invited to evaluate the images' quality.
  
  
  CONCLUSIONS
  140 kV, 30 mA is the best scan parameters for lung cancer.
authors.affiliation: The PLA Generator Hospital, Beijing, 100853. zs660@163.com
authors.forename: Shuai
authors.initials: S
authors.lastname: Zhang
authors.forename: Weibin
authors.initials: W
authors.lastname: Chen
authors.forename: Weidong
authors.initials: W
authors.lastname: Wang
authors.forename: Jie
authors.initials: J
authors.lastname: Yang
mesh_terms: D055088:Early Detection of Cancer; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D011829:Radiation Dosage; D014057:Tomography, X-Ray Computed / Q000379:methods*