Radiology Technology Qualification (China) - independent subject foundations cheat sheet
Radiology Technology Qualification (China) - independent subject foundations · Keep the key ideas within reach.
Imaging physics, beam interactions and useful calculations
Distinguish generation, interaction, detection and display.
State the model before using exponential attenuation or inverse square.
Gray, sievert and detector exposure indices are different quantities.
A standardized CT dose index is not an exact patient organ dose.
Positioning, digital images and quality assurance
Position the actual patient safely rather than force a routine view.
Projection geometry can change apparent anatomy and magnification.
Digital appearance can conceal excessive or inadequate acquisition exposure.
Evaluate clinical adequacy, indicators and the actual validated QC method.
CT, MRI and ultrasound: acquisition and interpretation limits
Keep modality physics and the clinical question connected.
Window settings change display rather than underlying attenuation.
Pitch and timing effects depend on the actual acquisition conditions.
Interpret diffusion and ultrasound artifacts in the full examination context.
Imaging safety, screening and coordinated response
Justification and optimization address patient exposures, not an imported occupational limit.
Routine patient shielding and staff protective barriers are different issues.
MR Conditional status requires evaluation of the actual conditions.
No blanket metformin, contrast-dose or renal-cancellation rule is supplied.