Abstract
Objective
The purpose of this study was to assess the possible clinical significance of bladder
urine T1 hyperintensity based upon comparison with urinalysis findings, using a cohort
of patients who underwent prostate MRI and urinalysis at a similar point in time during
preoperative work-up.
Methods
We identified 56 patients who underwent prostatectomy at our institution who obtained
prostate MRI and urinalysis within 1 day of each other preoperatively. A control group
of 160 consecutive adult men who underwent pelvic MRI during the same time period
for other indications was also identified. Two radiologists independently and in consensus
reviewed the T1-weighted images to assess the frequency of bladder urine T1 hyperintensity
in both groups. The urinalyses in the 56 men undergoing prostatectomy were reviewed,
with the results compared between patients with and without bladder urine T1 hyperintensity.
Results
Four (7.1%) of 56 men with prostate cancer exhibited T1 hyperintense bladder urine,
compared with six (3.8%) of 160 patients exhibiting this finding in the control group
(P=.288). Of the four prostate cancer patients with this finding, all exhibited a normal
urinalysis. An abnormal urinalysis was identified for four of the prostate cancer
patients, all of whom exhibited normal urine T1 signal intensity.
Conclusion
Bladder urine T1 hyperintensity may be seen occasionally in patients with prostate
cancer but is not associated with abnormal urinalysis and therefore should not be
regarded as a sign of acute urinary pathology.
Keywords
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Article info
Publication history
Published online: July 14, 2010
Accepted:
May 1,
2010
Received:
April 10,
2010
Identification
Copyright
© 2011 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
