Challenges to Using MR in HDR Procedures
![Ch1](https://5300642.fs1.hubspotusercontent-na1.net/hub/5300642/hubfs/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/Ch1.png?width=395&height=395&name=Ch1.png)
Ultrasound Transverse ≠ MR Transverse
Axial slices of the MR and ultrasound may look similar, but orientation differences can cause geometric misses.
![Ch2](https://5300642.fs1.hubspotusercontent-na1.net/hub/5300642/hubfs/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/Ch2.png?width=395&height=395&name=Ch2.png)
Prostate Deformation
Ultrasound probe pressure can deform the prostate in a way that no longer matches the MR.
![Ch3](https://5300642.fs1.hubspotusercontent-na1.net/hub/5300642/hubfs/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/Ch3.png?width=395&height=395&name=Ch3.png)
Image Degradation and Edema from Needles
As needles are placed, it becomes increasingly challenging to register the MR to the ultrasound.
MIM Symphony HDR Prostate
Seamless MR-to-Live-Ultrasound Registration for Clear Visibility of Prostate, Lesions, and OARs
![HDR_Animation2 HDR_Animation2](https://5300642.fs1.hubspotusercontent-na1.net/hub/5300642/hubfs/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/HDR_Animation2.gif?width=1000&height=563&name=HDR_Animation2.gif)
![Pre-Op](https://5300642.fs1.hubspotusercontent-na1.net/hub/5300642/hubfs/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/Pre-Op.jpg?width=395&height=395&name=Pre-Op.jpg)
Pre-Op
Solve Orientation Differences
With ReSlicer®, you can accurately reorient an initial MR to account for the orientation differences in the ultrasound.
![Intra-Op](https://5300642.fs1.hubspotusercontent-na1.net/hub/5300642/hubfs/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/Intra-Op.jpg?width=395&height=395&name=Intra-Op.jpg)
Intra-Op
View MR Contours on the Live Ultrasound
Predictive Fusion® lets you overlay MR-delineated contours, lesions, and OARs onto your live ultrasound to remove deformation errors and guide the procedure.
![Post-Insertion](https://5300642.fs1.hubspotusercontent-na1.net/hub/5300642/hubfs/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/Post-Insertion.jpg?width=395&height=395&name=Post-Insertion.jpg)
Post-Insertion
Auto-Digitize Needles
Efficiently digitize needles on the ultrasound or CT. Perform needle review and free length checks.
Transfer Contours
Registration Chaining™ helps you perform MR-to-planning-image fusions after needles are placed using mutual information.
![Rossi-Headshot-2](https://5300642.fs1.hubspotusercontent-na1.net/hubfs/5300642/00_Website/01_Solutions/01_Radiation_Oncology/06_Symphony-HDR-Prostate/Rossi-Headshot-2.jpg)
"I often get the question,what is the best imaging modality for planning HDR prostate procedures, ultrasound or CT?
My response is always MRI. MRI guidance enables more confident precise treatments and reduces toxicity to organs at risk. I’ve had the pleasure of providing my patients with precise treatments using MRI guidance in MIM Symphony HDR Prostate, and I look forward to other clinics having the same opportunity."
Dr. Peter Rossi, MD, FABS
Chairman of the Board at the American Brachytherapy Society and Radiation Oncologist at Valley View Hospital
Interested in MIM Symphony HDR Prostate?
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Resources
Additional Research
Research Article
An MRI-Based Dose-Response Analysis of Urinary Sphincter Dose and Urinary Morbidity after Brachytherapy for Prostate Cancer in a Phase II Prospective Trial
Brachytherapy
Research Article
Focal Boost to the Intraprostatic Tumor in External Beam Radiotherapy for Patients with Localized Prostate Cancer: Results from the FLAME Randomized Phase III Trial
Journal of Clinical Oncology
Research Article
Tumor-Targeted Dose Escalation for Localized Prostate Cancer Using MR-Guided HDR Brachytherapy (HDR) or Integrated VMAT (IB-VMAT) Boost: Dosimetry, Toxicity and Health Related Quality of Life
The Green Journal
Research Article
Two-Fraction Stereotactic Ablative Radiotherapy (SABR) versus Two-Fraction High Dose Rate (HDR) Brachytherapy for Localized Prostate Cancer: Does Dose Heterogeneity Matter?
The Green Journal
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