The Chest X-Ray · 2006-08-30 · • CXR Interpretation • Common Pathologies • Questions Aims...
Transcript of The Chest X-Ray · 2006-08-30 · • CXR Interpretation • Common Pathologies • Questions Aims...
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The Chest X-RayFor: Nottingham SCRUBS 26th August 2006
By: Mathew
1. Densities
The big two densities are:
(1) WHITE - Bone (2) BLACK - Air
The others are:
(3) DARK GREY- Fat (4) GREY- Soft tissue/water And if anything MAN-MADE is on the film, it is:
(5) BRIGHT WHITE - Man-made
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Contents: • Densities• Techniques• Anatomy• CXR Interpretation• Common Pathologies• Questions
Aims of this teaching:• Basics• Best exam results• Appreciate the role radiology plays• ? Instil an interest in radiology
Figure 2 - Different densities on Chest X-Ray
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2. Techniques – Projection
2.1 P-A (relation of x-ray beam to patient)
2.2 A-P - Supine / Erect
2.3 Lateral
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2.4 Lateral Decubitus
2.5 Oblique
2.6 Orientation
2.7 Rotation
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2.8 Penetration
2.9 Inspiration/Expiration
3. Anatomy
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3.1 Lobes
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3.2 Pleura Layers
3.3 Heart
Right border = Edge of (r) Atrium
Left border = (l) Ventricle + Atrium
Posterior border = left Ventricle
Anterior border = right Ventricle
3.4 Valves
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3.5 Mediastinum
3.6 Hilum
Made of: (1) Pulmonary Art. + Veins (2) The Bronchi
Left Hilus higher (max 1-2,5 cm)
Identical: size, shape, density
3.7 Ribs
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3.8 Soft tissues & Bones
3.9 Lateral CXR
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4. CXR Interpretation
4.1 Technical Details• Type• Orientation• Rotation • Inspiration/expiration• Penetration
4.2 Lungs• Density• Symmetry• Lesions
4.3 Heart
• Size of heart • Size of individual chambers of heart • Size of pulmonary vessels • Evidence of stents, clips, wires and valves • Outline of aorta and IVC and SVC
4.4 Mediastinum• Width • Contour• AP window
4.5 Hila• Size• Location
4.6 Review areas • Apices• Behind the heart• CP angles• Below the diaphragm• Soft tissues ( breast, surgical emphysema) • Ribs & clavicle • Vertebrae
Identify the lesion → localise the lesion → describe the lesion → give DD
Never stop looking, carry on with your systematic approach!!
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5. Pathology
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RUL Pneumonia
RLL Pneumonia
RML pneumonia
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Causes of Enlarged Hila:
1. Adenopathies (neoplasia, infection)
2. Primary Tumor
3. Vascular
4. Sarcoidosis
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LUL pneumonia LLL pneumonia
Consolidation on CT
Hilar mass lesion
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Hilar Lymphadenopathy - BLMultiple Masses
Pleural Effusion Pulmonary Fibrosis
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Heart failure Pneumothorax
RUL Collapse LLL Collapse
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EmphysemaAir under the diaphragm
Cervical Rib
Cavitating lesion
Cervical Rib
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The end of CXR talk.
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Miliary shadowingChest tube, NG tube, Pulmonary artery catheter
Hiatus herniaHiatus hernia
Dextrocardia