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Challenges to Using MR in HDR Procedures


Ultrasound Transverse ≠ MR Transverse

Axial slices of the MR and ultrasound may look similar, but orientation differences can cause geometric misses.


Prostate Deformation

Ultrasound probe pressure can deform the prostate in a way that no longer matches the MR.


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




Solve Orientation Differences

With ReSlicer®, you can accurately reorient an initial MR to account for the orientation differences in the ultrasound.



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.



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.


"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?

Fill out the form below to learn more or request a demo.


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


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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