Read the following statements regarding the various techniques used in cancer detection. |
(I) Cancer detection is based on biopsy and histopathological studies of the tissue, and blood and bone marrow tests for increased cell counts in case of leukaemia. |
(II) In biopsy, a piece of the suspected tissue cut into thin sections is stained and examined under microscope by a |
pathologist. |
(III) Techniques like radiography (use of X- rays), CT (computed tomography) and MRI |
(Magnetic resonance imaging) are very useful to detect cancers of the internal organs. |
(IV) Computed tomography uses strong magnetic fields and non-ionising radiations to detect physiological changes in living tissues. |
(V) MRI uses X-rays and ionising radiation to generate a 3-D image of the internal structure of an object. |
Which of the above statements are incorrect? |
A) (I) and (III)
B) (II) and (IV)
C) (III) and (IV)
D) (IV) and (V)
Correct Answer: D
Solution :
Computed tomography uses X-rays to generate a three -dimensional image of the internal structure of an object. MRI uses strong magnetic fields and non-ionising radiations to accurately detect pathological and physiological changes in the living tissues.You need to login to perform this action.
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