Novel Use of Motor-Evoked Potential Monitoring During Magnetic Resonance Imaging-Guided Soft-Tissue Cryoablation: A Case Report.

Motor-evoked potential (MEP) monitoring is an electrophysiologic technique useful for testing peripheral motor nerve integrity during cryoablation cases with risk of nerve injury. Previously, neuromonitoring within the magnetic resonance imaging (MRI) suite for cryoablation has not been performed as magnetic needles are used which could cause magnetic field interactions with neuromonitoring leads. We present the first report of a patient who underwent MEP monitoring during MRI-guided cryoablation of a vascular malformation adjacent to the brachial plexus.

In-field prostate cancer recurrence following radical prostatectomy and salvage radiation.

Objective: To define the natural history, patterns of recurrence and treatment modalities for local prostate cancer (PCa) recurrence following radical prostatectomy (RP) and radiation therapy (RT), and to investigate factors that could predict metastasis-free survival (MFS) in this unique patient population.

Methods: We queried a prospectively maintained PCa registry to identify men developing in-field recurrence (IFR) following RP and RT from 2008 to 2021 at a single institution. IFR was defined as biopsy-proven recurrent PCa or the presence of persistent positron emission tomography-avid lesions in the prior radiation field without evidence of metastasis.

The Academic Impact of Society of Interventional Radiology Foundation Grants: Report from the Society of Interventional Radiology Foundation/National Institutes of Health Task Force.

The Society of Interventional Radiology Foundation (SIR Foundation) aims to promote scientific research in Interventional Radiology by providing funding to promising investigators. Over the last 26 years, the SIRF has awarded more than 280 research grants. In 2020, the SIRF created a SIRF/NIH task force to evaluate the scientific ramifications of these funds in terms of overall productivity and research impact.

Use of Neurophysiological Monitoring during MR Imaging-Guided Ablation Procedures at 1.5 T: Workflow and Safety Considerations.

Purpose: To evaluate the feasibility of intraoperative neurophysiological monitoring (IONM) during magnetic resonance (MR) imaging-guided ablations and identify strategies to reduce IONM electrode radiofrequency (RF) heating during MR imaging.

Materials And Methods: Ex vivo experiments with a porcine tissue phantom simulating a typical high RF heating risk IONM setup during an MR imaging-guided ablation procedure on the shoulder were performed using a 1.5-T scanner.

Magnetic Resonance Imaging-Guided Cryoablation of Prostate Cancer Lymph Node Metastasis.

Purpose: To evaluate the safety and effectiveness of magnetic resonance (MR) imaging-guided cryoablation of prostate cancer metastatic lymph nodes (LNs).

Materials And Methods: Fifty-two patients with prostate cancer who underwent MR imaging-guided LN ablation from September 2013 to June 2022 were retrospectively reviewed. Of these, 6 patients were excluded because adequate ablation margins (3-5 mm) could not be achieved secondary to adjacent structures.