@Article{,
AUTHOR = {Ali-Reza Sharif-Afshar, Tom Feng, Steven Koopman, 
Christopher Nguyen, Quanlin Li, Eugene Shkolyar, 
Rola Saouaf, Hyung L. Kim},
TITLE = {Impact of post prostate biopsy hemorrhage on multiparametric magnetic resonance imaging},
JOURNAL = {Canadian Journal of Urology},
VOLUME = {22},
YEAR = {2015},
NUMBER = {2},
PAGES = {7698--7702},
URL = {http://www.techscience.com/CJU/v22n2/61281},
ISSN = {1488-5581},
ABSTRACT = {<b>Introduction:</b> Hemorrhage induced by prostate biopsy can interfere with the interpretation of prostate magnetic resonance imaging (MRI).
<br/>
<b>Materials and methods:</b> We reviewed 101 patients who had prostate multiparametric MRI (MP-MRI) and radical prostatectomy.
<br/>
<b>Results:</b> On MRI obtained within 4 weeks following the biopsy, hemorrhage was seen in 26/36 (72.2%) patients. Patients having a MRI between 4-6 weeks of the biopsy had hemorrhage in 8/14 (57.1%) cases. After 6 weeks, hemorrhage was less common but still present in 24/46 (52%) patients. There were five patients who had prostate MRI prior to biopsy and served as a control group. There was no significant correlation between the length of time beyond 6 weeks and the likelihood of having prostate hemorrhage on MRI.
<br/>
The overall sensitivity and specificity of MRI for predicting extracapsular extension (ECE) were 78.6% and 89%, respectively. However, if the analysis was limited to patients with MRI within 6 weeks from the time of biopsy, the sensitivity and specificity were similar: 80% and 90%, respectively. For patients with MRI obtained after 6 weeks, the sensitivity and specificity were 76.9% and 87.9%.
<br/>
<b>Conclusions:</b> Prostate hemorrhage is seen in the majority of cases within 6 weeks of biopsy and can be seen in nearly half the patients even beyond 6 weeks. However, hemorrhage within 6 weeks of a biopsy does not interfere with assessment for ECE.},
DOI = {}
}