【分享】关于CT影像处理的Window Size（W）和Window Level（L）

Typical window width and level values

Although this varies somewhat from institution to institution and vendor to vendor, window width and centers are generally fairly similar. The values below are written as width and level (W:x L:y) in Hounsfield units (HU). 

• head and neck
  • brain W:80 L:40
  • subdural W:130-300 L:50-100
  • stroke W:8 L:32 or W:40 L:40 ³
  • temporal bones W:2800 L:600
  • soft tissues: W:350–400 L:20–60 ⁴
• chest
  • lungs W:1500 L:-600
  • mediastinum W:350 L:50
• abdomen
  • soft tissues W:400 L:50
  • liver W:150 L:30
• spine
  • soft tissues W:250 L:50
  • bone W:1800 L:400

https://radiopaedia.org/articles/windowing-ct#nav_typical-window-width-and-level-values