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Imaging of the Renal System. Dr. Reshaid AlJurayyan Department of Radiology. OUTLINE. Introduction Imaging modalities Anatomy Cases. INTRODUCTION. What is radiology? It is a medical specialty that employs the use of imaging to both diagnose and treat disease within the human body.

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imaging of the renal system

Imaging of the Renal System

Dr. Reshaid AlJurayyan

Department of Radiology

outline
OUTLINE
  • Introduction
  • Imaging modalities
  • Anatomy
  • Cases
introduction
INTRODUCTION
  • What is radiology?

It is a medical specialty that employs the use of imaging to both diagnose and treat disease within the human body.

  • What is the renal system?

Kidneys, ureters, urinary bladder and urethra.

imaging modalities
IMAGING MODALITIES
  • Conventional radiography
  • Intravenous urogram (IVU)
  • US
  • CT
  • MRI
  • Nuclear medicine
conventional radiography
Conventional radiography
  • First imaging modality.
  • Cheap.
  • Useful for radio-opaque stones.
conventional radiography1
Conventional radiography

Image features:

  • Projectional image.
  • Image contrast determined by tissue density.
  • Good evaluation radio-opaque stones.
slide7
IVU
  • Conventional x-ray plus intravenous contrast.
  • Cheap.
  • Recently replaced by CT and MRI.
  • Useful for radio-opaque stones.
slide8
IVU

Image features:

  • Projectional image.
  • Image contrast determined by tissue density and IV contrast.
  • Good evaluation of collecting system and radio-opaque stones.
slide9
US
  • Use high frequency sound wave.
  • Contrast between tissue is determined by sound reflection.
slide10
US

Image features:

  • Operator dependant.
  • Projectional image.
  • Good resolution.
  • Used for stone, hydronephrosis, focal lesion.
slide11
CT
  • Same basic principle of radiography.
  • More precise.
  • Costly.
  • +/- contrast.
  • Useful for trauma, stone, tumor, infection.
slide12
CT

Image features:

  • Cross sectional images.
  • Image contrast determined by tissue density +/- contrast.
  • Better evaluation of soft tissue.
slide13
MRI
  • Better evaluation of soft tissue.
  • Expensive.
  • Useful for soft tissue pathology: tumor, infection.
slide14
MRI

Image features:

  • Cross sectional images.
  • Image contrast determine by tissue properties.
  • Excellent for soft tissue evaluation.
nuclear medicine
Nuclear medicine
  • Utilizes a gamma camera and radioactive isotopes.
  • Functional test.
  • Less expensive.
  • Useful for: obstruction and split function.
nuclear medicine1
Nuclear medicine

Image features:

  • Projectional image.
  • Image contrast by tissue uptake and metabolism.
slide27
What are the imaging modalities?
  • What are the findings?
  • Diagnosis?
case 1
Case (1)
  • Young male patient presenting with left flank pain and hematuria, no fever and normal WBC count.
case 2
Case (2)
  • Middle aged woman presenting with flank pain, fever and high WBC.
case 3
Case (3)
  • Elderly male patient with recurrent urinary tract infections.
case 4
Case (4)
  • Young female presenting with decreased renal function (high urea and creatinine level).
case 5
Case (5)
  • Elderly male patient with painless hematuria and weight loss.
case 6
Case (6)
  • Young male patient involved in a motor vehicle accident with blunt trauma to the abdomen.
ad