RADIOLOGICAL TECHNIQUES FOR DIAGNOSIS OF INTERNAL DISEASES

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RADIOLOGICAL TECHNIQUES FOR DIAGNOSIS OF INTERNAL
DISEASES

• Dr.P.Rajan MD DMRD DNB
• Assistant Professor
  
• Department of Radiodiagnosis
  Medical College Calicut

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• Traditional Methods of Diagnosis
• Inspection
• Palpation
• Percussion
• Auscultation
• and later laboratory medicine

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• RADIODIAGNOSIS
• Young speciality 112 years of history
• Started with discovery of X-ray by William Conrad
  Roentgen

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• RADIODIAGNOSIS
• Source of energy is required for perception
• Inspection - Visible light
• Palpation - Mechanical energy
• Percussion - Mechanical Sound
• Auscultation - Sound

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• MODALITIES IN RADIODIAGNOSIS
• Conventional Radiology - X-ray
• CT Scan X-ray
• Mammography X-ray
• Ultrasound Sound waves which cannot be heard
• Doppler Sound waves .
• Nuclear Medicine Emitting radiations
• MRI Nuclear Magnetic Resonance
• PET Annihilation of mater with emergence of
  gama rays
• MRS Magnetic resonance spectroscopy
• 
  so on

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• RADIODIAGNOSIS
• Contrast Everything shines in contrast
• So also diseases
• Contrast is a clue to internal architecture
  and composition

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• CHEST X-RAY
• Radiological expression of thoracic pathology
• Increased opacification
• Increased lucency
• Shift of mediastinal structures distortion of
  normal anatomy

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normal
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Lung abscess
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LLL consolidation
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PTB
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M. TB
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HN Thorax
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Collapse
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S.emphysema, PnT,
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Hamartoma
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Secondary
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Mediastinal mass
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D.Hernia
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Pl.effusion
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Mitral stenosis