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Novel use of ultrasound-guided high-intensity focused ultrasound (HIFU) may enable the neuroablation of the sacroiliac joint in a swine model: a feasibility study.
Reg Anesth Pain Med
January 2025
Department of Anesthesiology & Critical Care Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
Background: Sacroiliac joint (SIJ) dysfunction accounts for the etiology of pain in 15%-30% of low back pain cases. Some patients with conservative treatment-refractory SIJ dysfunction undergo radiofrequency (RF) ablation of the SIJ for prolonged pain relief. This procedure involves placing up to 12 RF probes in what is an invasive, resource-intensive, and time-consuming process.
View Article and Find Full Text PDFJoint k-b space diffusion-weighted image reconstruction and apparent diffusion coefficient fitting for diffusion-weighted turbo-spin-echo imaging.
Med Phys
January 2025
Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Background: Diffusion-weighted (DW) turbo-spin-echo (TSE) imaging offers improved geometric fidelity compared to single-shot echo-planar-imaging (EPI). However, it suffers from low signal-to-noise ratio (SNR) and prolonged acquisition times, thereby restricting its applications in diagnosis and MRI-guided radiotherapy (MRgRT).
Purpose: To develop a joint k-b space reconstruction algorithm for concurrent reconstruction of DW-TSE images and the apparent diffusion coefficient (ADC) map with enhanced image quality and more accurate quantitative measurements.
Real-time 3D MR guided radiation therapy through orthogonal MR imaging and manifold learning.
Med Phys
December 2024
Department of Radiation Oncology, Duke Cancer Center, Duke University, Durham, North Carolina, USA.
Background: In magnetic resonance image (MRI)-guided radiotherapy (MRgRT), 2D rapid imaging is commonly used to track moving targets with high temporal frequency to minimize gating latency. However, anatomical motion is not constrained to 2D, and a portion of the target may be missed during treatment if 3D motion is not evaluated. While some MRgRT systems attempt to capture 3D motion by sequentially tracking motion in 2D orthogonal imaging planes, this approach assesses 3D motion via independent 2D measurements at alternating instances, lacking a simultaneous 3D motion assessment in both imaging planes.
View Article and Find Full Text PDFMRI-guided neurolysis for the treatment of chronic refractory knee pain: a case report.
Skeletal Radiol
November 2024
Department of Diagnostic and Interventional Radiology, School of Medicine & Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Article Synopsis
- - The case report discusses a new treatment for chronic knee pain, particularly when other therapies have failed, highlighting a patient who underwent MRI-assisted chemical neurolysis targeting the genicular nerve.
- - A 62-year-old man experienced significant pain relief for four months after the procedure, suggesting that this method could be an effective option for those with persistent knee pain.
- - Despite promising results, further research, including controlled trials, is needed to fully assess the safety and effectiveness of this treatment before it can be commonly used in clinical practice.
How I do it: MRI-guided stereotactic navigation for Laser Interstitial Thermal Therapy.
Acta Neurochir (Wien)
November 2024
Department of Neurosurgery, Copenhagen University Hospital, Copenhagen, Denmark.
Background: MR-guided stereotaxy has emerged as a viable alternative to CT-guided frame-based or frameless approaches. By offering direct MR-guided navigation, this technique addresses most limitations inherent to CT navigation, enabling submillimeter precision.
Method: We detail the workflow of using the ClearPoint® MR navigation system for laser catheter placement in the treatment of a hypothalamic hamartoma.
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