MRI Evaluation of the Urothelial Tract: Pitfalls and Solutions.
OBJECTIVE
MR urography (MRU) can be an alternative to CT urography (CTU) for imaging of the kidneys, urinary bladder, and collecting systems. MRU can be a challenging examination to perform and interpret, which may result in technical and interpretive errors being made. This article highlights the pitfalls associated with MRU and discusses how to recognize and avoid them.


CONCLUSIONS
When performed properly, MRU may provide imaging quality generally comparable to that of CTU, and it enables comprehensive evaluation of the entire urinary tract.
1 Department of Medical Imaging, The Ottawa Hospital, 501 Smyth Rd, Ottawa, ON K1H 8L6, Canada.
Andrew D
AD
Chung
1 Department of Medical Imaging, The Ottawa Hospital, 501 Smyth Rd, Ottawa, ON K1H 8L6, Canada.
Nicola
N
Schieda
2 Department of Radiology, New York University Langone Medical Center, New York, NY.
Alampady Krishna
AK
Shanbhogue
1 Department of Medical Imaging, The Ottawa Hospital, 501 Smyth Rd, Ottawa, ON K1H 8L6, Canada.
Marc
M
Dilauro
2 Department of Radiology, New York University Langone Medical Center, New York, NY.
Andrew B
AB
Rosenkrantz
3 Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA.
Evan S
ES
Siegelman
D003937:Diagnosis, Differential; D003951:Diagnostic Errors / Q000517:prevention & control*; D019317:Evidence-Based Medicine; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D056888:Patient Positioning / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014551:Urinary Tract / Q000000981:diagnostic imaging* / Q000473:pathology; D014570:Urologic Diseases / Q000000981:diagnostic imaging* / Q000473:pathology
MR urography; MRI; gadolinium; kidney; urinary bladder