Basics of radiology
Transcript of Basics of radiology
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Radiology – The Radiology – The BasicsBasics
Laurie Lomasney, MDLaurie Lomasney, MD
Department of RadiologyDepartment of Radiology
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RadiologyRadiology
Four year residencyFour year residency Fellowships commonFellowships common Basic element of medical careBasic element of medical care Frequently the test that results in Frequently the test that results in
patient admission/diagnosispatient admission/diagnosis
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Basic ConceptsBasic Concepts
One view is no view – use it all!One view is no view – use it all! Patterns are your cluePatterns are your clue Be sure you are lookingBe sure you are looking Know what you’re looking forKnow what you’re looking for Know the limits of your testKnow the limits of your test
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Basic ConceptsBasic Concepts
One view is no view – use it all!One view is no view – use it all! Patterns are your cluePatterns are your clue Be sure you are lookingBe sure you are looking Know what you are looking forKnow what you are looking for Know the limits of your testKnow the limits of your test
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One View is No ViewOne View is No View
Posterior sulcus nodule = Cancer
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One View is No ViewOne View is No View
RML collapse
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One View is No ViewOne View is No View
Pectus excavatum, not pneumonia
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Basic ConceptsBasic Concepts
One view is no view – use it all!One view is no view – use it all! Patterns are your cluePatterns are your clue Be sure you are lookingBe sure you are looking Know what you’re looking forKnow what you’re looking for Know the limits of your testKnow the limits of your test
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Patterns are Your CluePatterns are Your Clue
Interstitial Lung Disease - Acute
PCP PneumoniaCHF
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Patterns are Your CluePatterns are Your Clue
Air Space Consolidation
Pneumonia Alveolar edema
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Patterns are Your CluePatterns are Your Clue
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Patterns are Your CluePatterns are Your Clue
SB > 3cm
Continuous valvulae
Paucity colonic gas
Multiple non-colonic A/F levels
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Basic ConceptsBasic Concepts
One view is no view – use it all!One view is no view – use it all! Patterns are your cluePatterns are your clue Be sure you are lookingBe sure you are looking Know what you’re looking forKnow what you’re looking for Know the limits of your testKnow the limits of your test
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Be Sure You are LookingBe Sure You are Looking
Kartegener’s Syndrome
RT
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Be Sure You are LookingBe Sure You are Looking
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Be Sure You are LookingBe Sure You are Looking
“Rule out pneumonia”
Marked free intraperitoneal air
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Basic ConceptsBasic Concepts
One view is no view – use it all!One view is no view – use it all! Patterns are your cluePatterns are your clue Be sure you are lookingBe sure you are looking Know what you’re looking forKnow what you’re looking for Know the limits of your testKnow the limits of your test
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Know What You’re Looking Know What You’re Looking ForFor
Skin fold – no intervention
Gray edge with peripheral markings
Failed line placement, SOB:
Thin line without peripheral lung markings = pneumothorax
PNEUMOTHORAX
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Know What You’re Looking Know What You’re Looking ForFor
Pneumothorax + mediastinal shift
=
Tension Pneumothorax
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Know What You’re Looking Know What You’re Looking ForFor
PNEUMOMEDIASTINUM
Air paralleling trachea, bronchi, left heart border
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Know What You’re Looking Know What You’re Looking ForFor
1. Trauma Board
2. Wide mediastinum
3. NG deviation
4. Tracheal deviation
5. Left apical cap
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Know What You’re Looking Know What You’re Looking ForFor
Aortic Transection X 2
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Know What You’re Looking Know What You’re Looking ForFor
35 year old with Lymphoma
65 year old with Pulmonary Arterial Hypertension
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Know What You’re Looking Know What You’re Looking ForFor
PNEUMOPERITONEUM
Upright – Nondependent point
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Know What You’re Looking Know What You’re Looking ForFor
Supine – Double Bowel Wall Sign
PNEUMOPERITONEUM
Outlining of liver/GB
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Know What You’re Looking Know What You’re Looking ForFor
35 year old with recurrent abdominal pain:
Extensive pancreatic calcification = recurrent pancreatitis
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Know What You’re Looking Know What You’re Looking ForFor
35 year old with bloody diarrhea
Thumb-printing transverse colon = Colitis
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Know What You’re Looking Know What You’re Looking ForFor
60 year old with acidosis and no bowel sounds, suspect dead bowel
Bowel dilatation
Pneumatosis
Portal venous gas
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June 3, 1965
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Basic ConceptsBasic Concepts
One view is no view – use it all!One view is no view – use it all! Patterns are your cluePatterns are your clue Be sure you are lookingBe sure you are looking Know what you’re looking forKnow what you’re looking for Know the limits of your testKnow the limits of your test
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Know the Limits of Your Know the Limits of Your TestTest
• Screening tests come firstScreening tests come first• Secondary tests come secondSecondary tests come second• Basic decision trees work for Basic decision trees work for
most, but not all, patientsmost, but not all, patients
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Know the Limits of Your Know the Limits of Your TestTest
35 year old on BCP with acute Shortness of breath
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Know the Limits of Your Know the Limits of Your TestTest
40 year old with confusion after skull fracture
Subdural hematoma
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Know the Limits of Your Know the Limits of Your TestTest
80 year old fell in bath tub this AM, unable to bear weight = Femoral neck fracture
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Know the Limits of Your Know the Limits of Your TestTest
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Take time to consider your Take time to consider your test first, and review the test first, and review the results afterresults after
You’ll be the star of your You’ll be the star of your team!team!
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Dust and gas in the constellation of Sagittarius