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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.


IVU

  • Conventional x-ray plus intravenous contrast.

  • Cheap.

  • Recently replaced by CT and MRI.

  • Useful for radio-opaque stones.


IVU

Image features:

  • Projectional image.

  • Image contrast determined by tissue density and IV contrast.

  • Good evaluation of collecting system and radio-opaque stones.


US

  • Use high frequency sound wave.

  • Contrast between tissue is determined by sound reflection.


US

Image features:

  • Operator dependant.

  • Projectional image.

  • Good resolution.

  • Used for stone, hydronephrosis, focal lesion.


CT

  • Same basic principle of radiography.

  • More precise.

  • Costly.

  • +/- contrast.

  • Useful for trauma, stone, tumor, infection.


CT

Image features:

  • Cross sectional images.

  • Image contrast determined by tissue density +/- contrast.

  • Better evaluation of soft tissue.


MRI

  • Better evaluation of soft tissue.

  • Expensive.

  • Useful for soft tissue pathology: tumor, infection.


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.





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.




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