Which one of these techniques is the safest for the detection of cancers?

Computed tomography (CT)

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Radiography (X-Ray)

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Magnetic resonance imaging (MRI)

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Histopathological studies

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Solution

The correct option is C Magnetic resonance imaging (MRI)
Ionizing radiation is used in several forms of diagnostic testing, such as X-ray imaging, computed tomography (CT or CAT scans), PET, radionuclide (nuclear medicine/SPECT) imaging, and angiography. There is no radiation exposure from ultrasound and magnetic resonance imaging (MRI). Hence, MRI is the safest.

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