Physics Chapter 16

20問 • 1年前

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通報

問題一覧

Patient factors include ________.

anatomical thickness and body composition

Which body habitus indicates an average patient?

Sthenic

Which body habitus indicates a thin, but healthy appearing patient?

Hyposthenic

Patient thickness affects radiographic technique by affecting ________.

mAs and kVp settings

A high quality radiographic image should always demonstrate ___________.

structures and tissues

Spatial resolution is limited to _______.

pixel size

________ is defined as the ability to image two separate objects and visually detect one from the other.

Resolution

What is the formula for the magnification factor?

MF = SID/SOD

The best way to minimize magnification is to use a _______.

long SID and small OID

Subject contrast is affected by _______.

patient thickness

Distortion can be reduced by _______.

placing the object plane perpendicular to the image plane

Which of these body parts has the highest subject contrast?

Chest

Radiographic image quality is improved when the _________ is increased.

source image distance

The technologist primarily controls radiographic contrast by varying the _________.

kilovoltage

Sharpness of image detail is best measured by ________.

spatial resolution

Radiographic technique charts embedded in the operating console are based on hypersthenic patients

False

Patient thickness should not be guessed.

True

Pathology can appear with increased radiolucency or radiopacity.

True

The visibility of image detail is best measured by spatial resolution.

False

Foreshortening of the image is when the anatomical part appears smaller than normal.

True

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問題一覧

Patient factors include ________.

anatomical thickness and body composition

Which body habitus indicates an average patient?

Sthenic

Which body habitus indicates a thin, but healthy appearing patient?

Hyposthenic

Patient thickness affects radiographic technique by affecting ________.

mAs and kVp settings

A high quality radiographic image should always demonstrate ___________.

structures and tissues

Spatial resolution is limited to _______.

pixel size

________ is defined as the ability to image two separate objects and visually detect one from the other.

Resolution

What is the formula for the magnification factor?

MF = SID/SOD

The best way to minimize magnification is to use a _______.

long SID and small OID

Subject contrast is affected by _______.

patient thickness

Distortion can be reduced by _______.

placing the object plane perpendicular to the image plane

Which of these body parts has the highest subject contrast?

Chest

Radiographic image quality is improved when the _________ is increased.

source image distance

The technologist primarily controls radiographic contrast by varying the _________.

kilovoltage

Sharpness of image detail is best measured by ________.

spatial resolution

Radiographic technique charts embedded in the operating console are based on hypersthenic patients

False

Patient thickness should not be guessed.

True

Pathology can appear with increased radiolucency or radiopacity.

True

The visibility of image detail is best measured by spatial resolution.

False

Foreshortening of the image is when the anatomical part appears smaller than normal.

True