Week 13 Flashcards
Motion controlled by will
-overcome by communication and possibly immobilization
Voluntary motion
Motion that can not be willfully controlled
-overcome by shorter exposure times
Involuntary motion
What areas of the body are critical to be shielded?
-lens of eye
-breasts
-thyroid gland
-reproductive organs
What is the first step in gonadal protection?
Adequate collimation
How much can proper shielding reduce female gonadal dose?
By 50%
How much can proper shielding reduce male gonadal dose?
90-95%
Increasing the OID (10-15cm) to reduce scatter?
Air gap technique
*increases patient dose because like a grid, technical factors need to be increased
Goal - to change long established practice by raising awareness about methods for lowering radiation dose during pediatric medical imaging examinations
Image gently campaign
Goal - to promote lowering the amount of radiation used in medically necessary imaging procedures and eliminate unnecessary procedures in adult medical imaging
Image wisely campaign
