Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition • 09-14 May 2026

Digital Poster

Interventional MRI: Device, Catheter Tracking, and Image-Guided Therapy

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Interventional MRI: Device, Catheter Tracking, and Image-Guided Therapy
Digital Poster
Interventional
Tuesday, 12 May 2026
Digital Posters Row C
16:00 - 16:55
Session Number: 462-05
No CME/CE Credit
This digital poster session features innovations in interventional MRI devices, catheter tracking, and image‑guided therapy. Presentations highlight new hardware concepts, tracking strategies, and workflow‑oriented solutions that advance precision and safety in MR‑guided interventions.

  Figure 462-05-001.  Repeatability of brain temperature and brain-body temperature gradients measured with chemical shift thermometry at 7 Tesla
Anjali Balaganesh, Taylor Zuleger, Benjamin Risk, Jason Allen, Candace Fleischer
Georgia Institute of Technology and Emory University, Atlanta, United States of America
Impact: Chemical shift brain thermometry is repeatable at 7T in healthy volunteers. Brain temperature and brain-body temperature gradients vary across regions, consistent with prior findings at 3T.
  Figure 462-05-002.  Metasurface resonators for percutaneous liver interventions
Robert Kowal, Lucas Knull, Lennart Popkes, Daniel Düx, Simon Schröer, Ivan Vogt, Bennet Hensen, Marcel Gutberlet, Frank Wacker, Oliver Speck, Holger Maune
Otto von Guericke University Magdeburg, Magdeburg, Germany
Impact: The SNR of MR-guided liver interventions can be improved by coil setups comprising a wireless metasurface. Integrated into sterile drapes this metasurface ensures excellent imaging during the intervention and serves as the access to the patient to simplify the workflow.
  Figure 462-05-003.  A Resonance-Tuned Butterfly Wireless Array for 3 T Prostate MRI
AMPC Selected
Shahzeb Hayat, Wenhao Liao, Peiyu He, Enhua Xiao, Shang Gao, Zhiguang Mo, Feng Du, Nan Li, Qiaoyan Chen, Xiaoliang Zhang, Ye Li
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
Impact: The wireless butterfly array provides a compact, optimum decoupling solution for prostate MRI, enhancing SNR and spatial specificity, simplifying deployment, and improving diagnostic imaging and potential interventional procedures while addressing limitations of current coils.
  Figure 462-05-004.  Accurate Motion Quantification Using Radial Stack-of-Stars 4D MRI with Gradient Nonlinearity Correction on a 1.5T MR-Linac
Can Wu, Aniket Pramanik, Victor Murray, Ricardo Otazo
Memorial Sloan Kettering Cancer Center, New York, United States of America
Impact: Gradient nonlinearity correction significantly improves motion accuracy in radial stack-of-stars 4D MRI on the 1.5T MR-Linac, enabling more reliable assessment of off-center tumor and organ motion, supporting precise motion-adaptive radiotherapy, and potentially improving treatment outcomes and patient safety.
  Figure 462-05-005.  Improving reliability of MRI thermometry during microwave ablations – influence of target temperature in animal liver ex vivo
Luigi Nardone, Alexander Sheng Ming Tan, Pierre Bour, Matthias Philipp Fabritius, Elif Öcal, Vanessa Franziska Schmidt, Mingming Wu, Laura Bauer, Valéry Ozenne, Jens Ricke, Max Seidensticker, Olaf Dietrich
LMU University Hospital, LMU Munich, Munich, Germany
Impact: This study identifies temperature as a critical determinant of MR thermometry reliability and ablation outcome. Optimizing thermal settings below vaporization thresholds enhances quantitative accuracy, enabling safer and more predictable MR-guided MWA planning and real-time monitoring.
  Figure 462-05-006.  3DLift: True real-time 3D motion tracking robust to motion baseline drifts using deep learning on the MR-Linac
Aniket Pramanik, Victor Murray, Can Wu, Ricardo Otazo
Memorial Sloan Kettering Cancer Center, New York, United States of America
Impact: 3DLift enables true real-time 3D motion tracking robust to respiratory motion baseline drifts with higher performance than dictionary matching techniques like MRSIGMA. 3DLift can unlock the real potential of the MR-Linac for adaptive radiotherapy of tumors affected by motion.
  Figure 462-05-007.  MR-guided percutaneous radiofrequency ablation of intervertebral discs: A feasibility study using porcine model
Xin Gao, Yueyou Peng, Yanfeng Meng
Taiyuan Central Hospital of Shanxi Medical University, Taiyuan, China
Impact: MRI-guided radiofrequency ablation of intervertebral discs is feasible and effective in a porcine model.
  Figure 462-05-008.  Presurgical Thalamic DTI associations with 3-month outcome following MR-Guided Focused Ultrasound for Essential Tremor
Conrad Rockel, Darren Clark, Camila Aquino, Marisol Ardila Nino, Tejas Sankar, Fady Girgis, Samuel Pichardo, Davide Martino, Zelma Kiss, G. Bruce Pike
University of Calgary, Calgary, Canada
Impact: This study indicates brain structural connectivity factors that relate to 3-month tremor reduction within Essential Tremor patients following MR-guided Focused Ultrasound thalamotomy. Furthermore, tractographic measures involving intralaminar thalamic nuclei support novel functional findings related to tremor improvement at 3-months post-surgery.
  Figure 462-05-009.  Development and Testing of Catheter Tip Coils in Interventional Cardiac Magnetic Resonance (iCMR) Imaging
Soudabeh Kargar, Meng Zhang, Amadou Diop, duy james nguyen, Jerome Oberson, Madison Wilkelman, Steve Wedan, Juerg Schwitter
Rockies MRI Solutions LLC, Denver CO, United States of America
Impact: Cardiac Magnetic Resonance (CMR) imaging can benefit from catheter-tip-coils to produce very high-resolution images with local high SNR. This can be applied to evaluating tissue before interventions such as ablation or tissue sampling as well as tissue response after ablation.
  Figure 462-05-010.  FUSION WEIGHTED LMS ADAPTIVE FILTERING FOR EMI SUPPRESSION IN MR-GUIDED ABLATION
Anbarasi Pugazandhi, Thomas Gerlach, Marcel Gutberlet, Daniel Düx, Frank Wacker, Georg Rose, Oliver Speck
Otto-von-Guericke University, Magdeburg, Germany
Impact: Clinicians and researchers performing MR-guided ablation benefit from improved image quality and reliability. The proposed software-based EMI suppression method enhances SNR and simplifies workflow integration by dynamically identifying the detectors that best represent interference at any given moment.
  Figure 462-05-011.  Distortion-Free Dynamic Spatiotemporally Encoded Imaging for Guiding Needle-Based Interventions
Anuj Sharma, Sierra Batson, Sree Tirumani, Robert Webster, William Grissom
Case Western Reserve University, Cleveland, United States of America
Impact: MR-guided robotic systems can enable minimally invasive needle-based surgeries and biopsies, but they suffer from metal and electromagnetic interference artifacts that prevent clear needle visualization. We demonstrate xSPEN with EDITER correction to enable distortion-free visualization of needles on MR images.
  Figure 462-05-012.  Towards Robust and Efficient Landmark Tracking for Real-time Abdominal MR-guided Radiotherapy via Self-supervised Learning
Pauline Ornela Megne Choudja, Marcel Nachbar, Cihan Gani, Marcel Büttner, Daniela Thorwarth, Thomas Küstner
University Hospital of Tuebingen, Tuebingen, Germany
Impact: We propose a self-supervised registration that shows stable tracking of abdominal landmarks in MR-guided radiotherapy. The approach enables accurate, real-time tracking suitable for clinical integration into MR-guided radiotherapy workflows.
  Figure 462-05-013.  Origami Catheter Coils for Endomyocardial Biopsies
Paul Horn, Felix Spreter, Kian Tadjalli Mehr, Ali Özen, Simon Reiss, Michael Bock
University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
Impact: The origami catheter coil could improve MR guided endomyocardial biopsies. The coil can be tracked in the folded state, and locally increases SNR providing high-resolution images of the target site when expanded.
  Figure 462-05-014.  Combining MR-acoustic radiation force imaging and MR-shear wave elastography for non-invasive acoustic intensity estimation
Henrik Odéen, Taylor Webb, Michael Malmberg, Dennis Parker
University of Utah, Salt Lake City, United States of America
Impact: This work can potentially advance transcranial ultrasound neuromodulation by enabling accurate, patient-specific, noninvasive estimation of acoustic intensity, reducing targeting uncertainty and improving safety and efficacy for clinical translation, using an MRI-only approach.
  Figure 462-05-015.  MRI vs CT in Post Ablation Assessment of Pulmonary Ground-Glass Nodules: A Prospective Study on Consistency and Evolution
Qian Zhao, Mengwen Liu, Lina Zhou, Jiuming Jiang, Chengyi Jiang, Liang Zhao, Li Zhang
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College — Department of Diagnostic Radiology, China
Impact: This study demonstrated the high MRI-CT concordance in post-ablation assessment of pulmonary ground-glass nodules, characterized MR features and their temporal evolution following successful ablation, and established an imaging foundation for evaluating the efficacy of radiofrequency ablation using MRI.

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