Lecture 14

Question 1

Renal duplex artifact is the result of

Answer 1

Sound beam refraction between lower portion of spleen or liver and adjacent fat

Question 2

Renal duplicaiton artifact seen mostly in

Answer 2

Obese patients

Question 3

Renal duplication artifact can mimick (3)

Answer 3

Duplex collecting system
Suprarenal masses
Upper pole renal cortical thickening

Question 4

How to resolve renal duplication artifact

Answer 4

Change transducer position

Using deep insipiration (liver and spleen as acoustic window)

Question 5

intravenous urography (IVP)

Answer 5

Radiographic exam
IV admin f contrast medium
Functional and anatomical info

Advantage: showing whole urinary tract on a few films

Ideal demonstrating calculi

Limited: reliance on renal function

Question 6

Nuclear medicine

Answer 6

Nuclear Medicine
Admin of IV radionuclide filtered through kidneys at a specific rate and concentration

Series of films demo. Renal perfusion & function

Disadvantage: rely on renal function
demonstrates only gross anatomy

Question 7

CT

Answer 7

Exquisite anatomical detail
Differentiate between types of masses
Disadvantages: 
expensive, facilities are limited, ionizing radiation 
 Use of contrast relies on function