05 Principles of Radiographic Interpretation 08

20
Unit 5

description

GG

Transcript of 05 Principles of Radiographic Interpretation 08

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Unit 5

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Imaging as an Examination Tool

  Clinical examination

  Signs

  Symptoms

  Ordering the right type of imaging

examination

  Ordering the right number of imaging

examination  Necessary vs unnecessary examinations

  Benefit to the patient

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Viewing condition

  Viewbox  onitor   !rints

   "mbient light reduced  #uiet room  $ntraoral films mounted on a opa%ue holder   &%ual intensity of light on the view box  onitors' calibration  agnification  Software limitations

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Localize the abnormality

  3ow many lesions4

  here is the lesion4

  6ocali7ed vs generali7ed

  Single arch or both the arches

  $nside the bone or outside

 

2elation to the crown  2elation to the root

  Superior to the mandibular canal

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Periphery

  ell defined or ill defined4

  Sharp margins

  Corticated margins

  Sclerotic margins

  2adiolucent band

 

Blends into ad*acent area  $rregular margins

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Shape

  Circular 

  Oval

  Scalloped

  ultilocular 

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Internal structures

  2adiolucent

  ixed

  2adiopa%ue

  (rabeculation

  Septa

 

Calcifications  (ooth or similar entities

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Adjacent structures

  (eeth

  6amina dura

  Crestal bone

  !eriodontal spaces

   "lveolar bone

 

Nerve canals  axillary sinuses

  Cortical bones

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escription! description!description  Spea8 out loudly

  6ist it down

  Compare findings in different images

  Clinical information

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Vindicate your "

  Vascular   $nfection  Neoplasm 

9rugs  $diopathic:inflammatory  Congenital   "utoimmune

  (rauma  &ndocrine:metabolic

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In the Land o# $%!%%% la&es!'

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'we see the (sh)

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Liar! Liar)) o *ur Eyes

Lie+

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irty words)

  Sun;ray appearance

  <round glass

  Cotton wool

  Onion s8in

  9riven snow

 

&tc) etc

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,hen not to order

imaging  =ou have not clinically : radiographically

evaluated the patient

  No benefit to the patient

   "dditional images may not provide extra

information

  No >routine? radiograph

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,hat goes on the report

  !atient) doctor) clinic identification

  9ate) type and number of examination

  2easons for the examination

  Clinical information

  2elevant observation

 

2adiographic $mpressions   "ny further tests) examinations