KMID : 0858520170210030139
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Journal of the Korean Society of Magnetic Resonance in Medicine 2017 Volume.21 No. 3 p.139 ~ p.147
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Multiparametric MRI of Prostate Cancer after Biopsy: Little Impact of Hemorrhage on Tumor Staging
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Choi Moon-Hyung
Jung Seung-Eun Park Yong-Hyun Lee Ji-Youl Choi Yeong-Jin
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Abstract
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Purpose: To evaluate differences in staging accuracy of prostate cancer according to the extent of hemorrhage on multiparametric MRI performed after biopsy.
Materials and Methods: We enrolled 71 consecutive patients with biopsy-proven prostate cancer. Patients underwent MRI followed by a prostatectomy at our institution in 2014. Two radiologists reviewed the MRI to determine the tumor stage. Correlation between biopsy-MRI interval and extent of hemorrhage was evaluated. Regression analyses were used to determine factors associated with accuracy of tumor staging.
Results: The mean interval between biopsy and MRI was 17.4 ¡¾ 10.2 days (range, 0?73 days). The interval between prostate biopsy and MRI and the extent of hemorrhage were not significantly correlated (P = 0.880). There was no significant difference in the accuracy rate of staging between the small and large hemorrhage groups.
Conclusion: Biopsy-induced hemorrhage in the prostate gland is not sufficiently absorbed over time. The extent of hemorrhage and the short interval between biopsy and MRI may not impair tumor detection or staging on multiparametric MRI.
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KEYWORD
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Prostatic neoplasms, Magnetic resonance imaging, Biopsy, Neoplasm staging, Hemorrhage
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