Imaging Studies Of Renal System

Dr.Ibrahim Abujarad9-3-2013

KUB IVP: intravenous pyelography Ultrasonography CT scan & MRI studies Renal scan

Topics

KUB stands for: kidneys, ureter & bladder.

No contrast material is used, it is the same for plain abdominal X-ray to show the different abdominal & pelvic organs as soft tissue shadows.

It is useful also to show radio-opaque renal stones.

KUB

KUB

**What is an Intravenous Pyelogram (IVP)?

An intravenous pyelogram (IVP) is an x-ray examination of the kidneys, ureters and urinary bladder

that uses contrast material.

IVP

How IVP will help in renal cases ??

IVP**How does the procedure work? In the IVP exam, iodine injected through a vein in the arm collects in the kidneys, ureters and bladder, giving these areas a bright white and sharply defined appearance on the x-ray images.**How is the procedure performed?• outpatient basis.• The patient is positioned on the

table. • The contrast material is then

injected, usually in a vein in the patient's arm, followed by additional still images.

• hold very still.• As the contrast material is

processed by the kidneys a series of images is taken.

**Nephrogram:

the contrast is condensed in the tissue of the kidney within 5 minutes

**Pelvicalycal pyelograph:

calyces: major 3 ( upper- middle- lower)

minor :6-12 cup shaped at the end of major calyces

each minor calyx has a neck and expanded extension (part

of renal papilla)

Pelvis of ureter :

funnel shaped narrowing towards it is medial inferior angle

3 Constrictions of ureter: 1- at the junction with the renal pelvis.

2- as the ureter cross the pelvic brim at the bifurcation of the iliac artery.

3- as it enters the bladder.

IVP

AT 5 MIN

AT 10 MIN

AT 15 MIN

Ultrasonography

• Initial study to evaluate kidney size, nature of renal masses (solid or cystic)

• Doppler U/S to assess renal vasculature.

Ultrasonography

Ultrasonography

CT scan

3D CT SCAN

MRI

MRI Angiography

A renal scan is a nuclear medicine exam in which a small amount of radioactive material (radioisotope) is used to

measure the function of the kidneys.

Renal scan

Thank You