Loading...
Publication
Post-Treated Prostate Cancer: Normal Findings and Signs of Local Relapse on Multiparametric Magnetic Resonance Imaging
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 4.63 MB | Adobe PDF |
Advisor(s)
Abstract(s)
The use of multiparametric magnetic resonance imaging (mp-MRI) for prostate cancer has increased over recent years, mainly for detection, staging, and active surveillance. However, suspicion of recurrence in the set of biochemical failure is becoming a significant reason for clinicians to request mp-MRI. Radiologists should be able to recognize the normal post-treatment MRI findings. Fibrosis and atrophic remnant seminal vesicles after prostatectomy are often found and must be differentiated from local relapse. Moreover, brachytherapy, external beam radiotherapy, cryosurgery, and hormonal therapy tend to diffusely decrease the signal intensity of the peripheral zone on T2-weighted images (T2WI) due to the loss of water content, consequently mimicking tumor and hemorrhage. The combination of T2WI and functional studies like diffusion-weighted imaging and dynamic contrast-enhanced improves the identification of local relapse. Tumor recurrence tends to restrict on diffusion images and avidly enhances after contrast administration either within or outside the gland. The authors provide a pictorial review of the normal findings and the signs of local tumor relapse after radical prostatectomy, external beam radiotherapy, brachytherapy, cryosurgery, and hormonal therapy.
Description
Keywords
HSJ IMA HSAC IMA HSJ URO HSM IMA Androgen Antagonists/therapeutic use Antineoplastic Agents, Hormonal/therapeutic use Cryosurgery Magnetic Resonance Imaging Neoplasm Recurrence, Local/diagnosis Prostatectomy Prostatic Neoplasms/diagnosis Prostatic Neoplasms/therapy Radiotherapy
Citation
Abdom Imaging. 2015 Oct;40(7):2814-38
Publisher
Springer