CT & MRI scan difference

CT scan

MRI scan

Bone 

cortex

White 

Black

Technology

Uses X-rays to create 

cross-sectional images

Uses strong magnetic fields 

and radio waves

Best for

Imaging bones, detecting
fractures, & acute bleeding

Soft tissue evaluation (brain,
muscles, heart, cancers)

Radiation

Exposure

Yes, involves ionizing
radiation (X-rays)

No, uses non-ionizing radiation

Image 

Detail

Better for bone details and
dense tissues

Superior for soft tissues,
ligaments, and organs

Scan Time

Typically faster (a few
minutes)

Longer (30-60 minutes or more)

Cost

Generally less expensive

Generally more expensive

Contrast 

Agents

Uses iodine-based contrast
agents (risk of allergy)

Uses gadolinium-based agents
(less allergic reactions)

Artifacts

More susceptible to artifacts
from metal objects

Less affected by metal, but can
cause heating

Use in

Pregnancy

Generally avoided due to
radiation risk

Considered safer but used with
caution

Movement

Sensitivity

Less sensitive to patient
movement

Very sensitive to movement;
requires patient stillness

Availability

Widely available in many
medical facilities

May be less available due to
higher cost and complexity