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Imaging > Imaging Basics > Flashcards

Imaging Basics Flashcards

1
Q

Reference Position

A

Anatomical Position

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2
Q

Patient laying down terms

A

prone, recumbent, trendelenburg

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3
Q

Upright terms

A

seated or standing

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4
Q

Erect Term

A

weight bearing

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5
Q

Body Parts Closest to Image Receptor

A

spine images- spine
chest images- heart/lungs

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6
Q

Decubitus

A

-body on horizontal surface
-horizontal x-ray
-detects air fluid levels and free air

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7
Q

X-ray Beam Projection Path

A

PA/AP and lateral
joints- AP

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8
Q

Exceptions to X-ray beam path

A

hand and foot

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9
Q

Minimum Image ordering

A

2 images at right angles

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10
Q

Why to order 2 images

A

-information about dimensions
-locates lesions and foreign bodies
-determines fracture alignment

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11
Q

How to view an X-Ray

A

-view from either side
-line up patient facing you (doesn’t matter if taken PA or AP)
-lateral view: line as clinician is x-ray tube

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12
Q

Exceptions to viewing an X-ray

A

hand and feet- view as limb hanging in anatomical position

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13
Q

Identification Markers

A

-patient info
-R/L
-radiology tech initials
still view in anatomical

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14
Q

INT/EXT Abbreviations

A

-internal rotation
-external rotation

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15
Q

WTB/Erect/Stand Abbreviations

A

weight bearing or erect

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16
Q

DECUB Abbreviation

A

decubitus or recumbent
laying on horizontal surface

17
Q

INSP/EXP Abbreviations

A

inspiration or expiration

18
Q

Density Meaning

A

blackness on radiograph

19
Q

Contrast Goal and WhatisitAffected By

A

goal- anatomical detail more visible
affected by- peak kilovoltage time

20
Q

Detail Means..

A

geometric sharpness

21
Q

Distortion

A

distance between source, patient, and image receptor
-closer to receptor had less distortion
-from unequal magnification

22
Q

Common Practice Distance

A

40” between beam source and image receptor

23
Q

Interpretation/Outcome of Imaging (5)

A
  1. positive for diagnosis
  2. negative for suspected diagnosis
  3. negative for diagnosis but suspicion for another diagnosis
  4. inconclusive- requiring more imaging to confirm
  5. wrong
24
Q

Search Pattern

A

method for visually searching an image

25
Q

Reducing Errors

A

communication
give radiologist the expertise in our own area of practice
collaborate

26
Q

Observation Error

A

incomplete or faulty search pattern

27
Q

Interpretation Error

A

failure to link abnormal radiograph to pathology

28
Q

ABCS of imaging

A

alignment
bone
cartilage
soft tissue

29
Q

Alignment Category

A

general skeleton architecture
contour of bones
alignment relative to other bones

30
Q

Bone Density Category

A

general density
texture abnormality
local density changes

31
Q

Cartilage Category

A

epiphyseal plates
joint space width
subchondral space

32
Q

Soft Tissue Category

A

periosteum
muscles
fat pads and lines
joint capsules
miscellaneous soft tissue findings

Imaging (5 decks)

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