FUDAN UNIVERSITY SHANGHAI CANCER CENTER ②复旦大学上海医学晚肿瘤学糸
FUDAN UNIVERSITY SHANGHAI CANCER CENTER 复旦大学上海医学院肿瘤学系
FUDAN UNIVERSITY SHANGHAI CANCER CENTER CTI system .Scan table X-ray generation .Data collection ° computer ° Display system e Control system .Data storage and transmission .Digital camera or PAcs ②复旦大学上海医学晚肿瘤学糸
FUDAN UNIVERSITY SHANGHAI CANCER CENTER 复旦大学上海医学院肿瘤学系 CT system •Scan table •X-ray generation •Data collection •computer •Display system •Control system •Data storage and transmission •Digital camera or PACS
FUDAN UNIVERSITY SHANGHAI CANCER CENTER CT is a dominant imaging technique for cancer detection and follow-up Tumor response and staging criteria are based on tumor size measured on ct am Table Detectors ⑨复旦大学上海医学晚肿瘤学糸
FUDAN UNIVERSITY SHANGHAI CANCER CENTER 复旦大学上海医学院肿瘤学系 • CT is a dominant imaging technique for cancer detection and follow-up • Tumor response and staging criteria are based on tumor size measured on CT
FUDAN UNIVERSITY SHANGHAI CANCER CENTER CT value( Hounsfield unit, Hu) Tissue Hu Imaging ras 1000 black Fat gray-scale Water Soft tissue 22~46 calcifications 80~1000 bone 1000 white ⑨复旦大学上海医学院肿痼学糸
FUDAN UNIVERSITY SHANGHAI CANCER CENTER 复旦大学上海医学院肿瘤学系 CT value（Hounsfield unit，Hu) Tissue Hu Imaging Gas - 1000 black Fat - 100 gray-scale Water 0 Soft tissue 22~46 calcifications 80~1000 bone 1000 white
FUDAN UNIVERSITY SHANGHAI CANCER CENTER Window Width and window Level Window width the extent of ct value Window Leve: center point of ct value on i mag ing ⑨复旦大学上海医学院肿痼学糸
FUDAN UNIVERSITY SHANGHAI CANCER CENTER 复旦大学上海医学院肿瘤学系 Window Width and Window Level • Window Width ：the extent of CT value • Window Level ：center point of CT value on imaging