Understanding X-ray Grids

What is the primary purpose of a grid in X-ray imaging?

• To increase the X-ray dose

• To absorb scattered radiation and improve image contrast

• To reduce the size of the X-ray machine

• To enhance the color of the X-ray image.

A grid in X-ray imaging is made up of alternating strips of lead and ________ material.

• plastic

• aluminum

• spacer

• copper

Who invented the device in the year 1913?

• Thomas Edison

• Alexander Graham Bell

• Dr. Gustave Bucky

• Nikola Tesla

What is the primary purpose of using a grid in radiology?

• A) To increase scatter radiation

• B) To reduce scatter radiation and improve contrast

• C) To enhance primary radiation

• D) To protect the patient.

In radiology, a grid is used to reduce _______ radiation and improve image contrast.

• primary

• scatter

• secondary

• direct

What is the main characteristic of scatter radiation?

• It is unidirectional

• It is multidirectional

• It is absorbed completely

• It does not interact with lead strips.

Primary radiation is oriented in the same axis as the ______ and passes between them to reach the film unaffected by the grid.

• scatter radiation

• patient

• lead strips

• film

Which material is structurally stronger?

• Aluminum

• Organic

• Both are equally strong

• None of the above

Fill in the blank: Aluminum removes more primary radiation, leading to more ________ exposure.

• Patient

• Doctor

• Technician

• Animal

For which of the following conditions is grid radiography recommended?

• Any anatomical part < 12 cms

• Any anatomical part > 12 cms

• With low Kvp

• With high Kvp