Week 1- Imaging of UT Flashcards
1
Q
What are the disadvantages of USS?
A
-Highly operator dependant
2
Q
Why can you visualise kidneys on a plain x-ray?
A
-Fat around the kidneys
3
Q
When can you see the ureter?
A
-When it is calcified
4
Q
Why do you use CT scan on kidneys?
A
- Identify stones in calyces
- Identify tumours and staging
5
Q
When do you use MRI?
A
- Local staging of tumours
- To differentiate between fluids, solids and blood
6
Q
What is the purpose of an MR angiogram?
A
-Identify Stenosis or aneurysm
7
Q
What is an ectopic ureter?
A
-Ureter terminates at a site other than bladder eg urethra
8
Q
What is a horseshoe kidney?
A
- Kidneys touch during ascent and join together then carry on ascending
- Get stuck underneath IMA
9
Q
What is crossed renal ectopia?-
A
-Two kidneys on one side
10
Q
What is the purpose of a micturating cystogram?
A
-Identify leaks and refluxes
11
Q
What is the purpose of a urethrogram?
A
-Look for strictures
12
Q
What is a DMSA Scan?
A
- Nucleotide marker used to visualise kidney -> linked to radioactive isotope
- Visualises function via clearance
13
Q
What are the advantages of USS?
A
- Cheap
- Quick
- Differentiate between fluid and solid abnormalities
