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The role of Multiparametric prostate MRI in the detection, biopsy, and staging of prostate cancer.
Mathew Cherny1 and Robert Villani1

1Radiology, Northwell Health, Manhasset, NY, United States

Synopsis

Prostate cancer is the second cause of cancer related death in men. Historically, screening has consisted of serum PSA, digital rectal exams, and random US guided transrectal biopsy. Compared to older methods, mp-MRI is superior for the detection and staging of prostate cancer due to its improved visualization and lesion characterization. The PI-RADS classification system is a schema developed concordantly with mp-MRI in order to better characterize the clinical significance of imaging findings. Increasingly, mp-MRI is taking a central role in detection, staging and biopsy of prostate neoplasm. In the future it may emerge as a primary screening tool.

Purpose:

To describe the evolving role of prostate MRI in the detection, staging, and biopsy of prostate cancer through discussion of prostate MRI imaging techniques, review of anatomy and imaging characteristics of malignancy, and highlighting fusion biopsy techniques.

Outline of Content:

1. Prostate cancer epidemiology, review of traditional screening and detection techniques

2. Discussion of mp-MRI of the prostate as an evolving method for detection and local staging

3. Review of prostate gland anatomy and typical imaging appearance on MRI

4. Depiction of imaging characteristics of malignancy

5. Description and overview of lesion reporting with PI-RADS classification

6. Overview of role of MRI in US fusion biopsy to obtain localized and accurate sampling of identified lesions.

7. Future roles of mp-MRI in prostate cancer screening

8. Summary

Acknowledgements

1. Eran Ben-Levi, MD, System Chief of Body Imaging, Long Island Jewish Medical Center.

2. Ardeshir R Rastinehad, DO, Associate Professor Urology, Associate Professor Radiology, The Mount Sinai Hospital.

References

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Figures

Routine multiparametric MRI (mp-MRI) prostate sequences.

mp-MRI demonstrates malignancy in the left peripheral zone with extra-capsular extension (ECE) and involvement of the adjacent neurovascular bundle.

MRI appearance of benign prosatic hyperplasia with central gland hypertrophy characterized by hypertrophic central gland nodules with thin T2 dark rim.

Focal lesion in the right peripheral zone demonstrating restricted diffusion and hyperenhancment, which was biopsied and determined to be granulomatous prostatitis on pathology.

MRI/US fusion biopsy procedural planning with delineation of lesion and depiction of biopsy trajectories.

Proc. Intl. Soc. Mag. Reson. Med. 25 (2017)
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