Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
561-05-004 ISMRM Abstract

MR-guided HDR Brachytherapy in Cervical Cancer patients: Accurate and fast catheter positioning with real-time dosimetry

Primary: Interventional - MR-Guided Interventions
Secondary: Physics & Engineering - Interventional Devices
561-05-004 · Advanced MR Techniques in Cervical, Genital, Placental, and Fetal Disorders · Wednesday, 13 May, 4:00 PM–4:55 PM · Digital Posters Row B
Keywords: MR-Guided Interventions MR-Guided Radiotherapy Brachytherapy Active Tracking MR Tracking
Accepted
Majd Antaki1,2, Borjan Gagoski 3, Yury Niatsetski2, Bob van Veelen2, Joost Schillings2, Junghoon Lee1, Marc Morcos4, Michael Roumeliotis1, Gayoung Kim1, Junichi Tokuda5, Ravi T Seethamraju6, Wolfgang Loew7, Akila N Viswanathan1, Ehud J Schmidt1,8
1Radiation Oncology and Molecular Imaging, Johns Hopkins University, Baltimore, United States of America
2Brachytherapy, Elekta AB, Stockholm, Sweden
3Radiology, Boston Children's Hospital and Harvard Medical School, Boston, United States of America
4Radiation Oncology, Miami Cancer Institute, Miami, United States of America
5Radiology, Brigham and Women's Hospital, Boston, United States of America
6Siemens Medical Solutions, Boston, United States of America
7Cincinnati Children's Hospital Medical Center, Cincinnati, United States of America
8Medicine (Cardiology), Johns Hopkins University, Baltimore, United States of America
Presenting Author: Borjan Gagoski

Synopsis

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References

1. Fonseca GP, Jacob G. Johansen JP, Smith RL, Beaulieu L, Beddar S, Kertzscher G, Verhaegen F and Tanderup K. In vivo dosimetry in brachytherapy: Requirements and future directions for research, development, and clinical practice. Physics and Imaging in Radiation Oncology. 2020;16:1-11. https://doi.org/10.1016/j.phro.2020.09.002 [doi]
2. Choudens; SOd, Small-Tom; C, McAlarnen; L, Summey; SDR, Bishop; E, Hopp; E, Bradley; W, Uyar; D, Rader; JS, Bedi; M and Erickson; B. PO13: Bleeding in the Brachytherapy Suite - The Unwanted Surprise;. Brachytherapy. 2023;Volume 22. https://doi.org/10.1016/j.brachy.2023.06.114 [doi]
3. Dumoulin CL, Mallozzi RP, Darrow RD and Schmidt EJ. Phase-field dithering for active catheter tracking. Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine. 2010;63:1398-403. https://doi.org/10.1002/mrm.22297 [doi]
4. Wang W, Dumoulin CL, Viswanathan AN, Tse ZT, Mehrtash A, Loew W, Norton I, Tokuda J, Seethamraju RT, Kapur T, Damato AL, Cormack RA and Schmidt EJ. Real-time active MR-tracking of metallic stylets in MR-guided radiation therapy. Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine. 2015;73:1803-11. https://doi.org/10.1002/mrm.25300 [doi]
5. Wang W, Viswanathan AN, Damato AL, Chen Y, Tse Z, Pan L, Tokuda J, Seethamraju RT, Dumoulin CL, Schmidt EJ and Cormack RA. Evaluation of an active magnetic resonance tracking system for interstitial brachytherapy. Medical physics. 2015;42:7114-21. https://doi.org/10.1118/1.4935535 [doi]
6. de Arcos J, Schmidt EJ, Wang W, Tokuda J, Vij K, Seethamraju RT, Damato AL, Dumoulin CL, Cormack RA and Viswanathan AN. Prospective Clinical Implementation of a Novel Magnetic Resonance Tracking Device for Real-Time Brachytherapy Catheter Positioning. International journal of radiation oncology, biology, physics. 2017. https://doi.org/10.1016/j.ijrobp.2017.05.054 [doi]
7. Kissel M, Fournier-Bidoz N, Henry O, Bockel S, Kumar T, Espenel S and Chargari C. Venezia applicator with oblique needles improves clinical target volume coverage in distal parametrial tumor residue compared to parallel needles only. Journal of contemporary brachytherapy. 2021;13:24-31. https://doi.org/10.5114/jcb.2021.103583 [doi]
8. Alterovitz R, Lessard E, Pouliot J, Hsu IC, O'Brien JF and Goldberg K. Optimization of HDR brachytherapy dose distributions using linear programming with penalty costs. Medical physics. 2006;33:4012-9. https://doi.org/10.1118/1.2349685 [doi]
9. Kim G, Viswanathan AN, Bhatia R, Landman Y, Roumeliotis M, Erickson B, Schmidt EJ and Lee J. Dual convolution-transformer UNet (DCT-UNet) for organs at risk and clinical target volume segmentation in MRI for cervical cancer brachytherapy. Physics in medicine and biology. 2024;69. https://doi.org/10.1088/1361-6560/ad84b2 [doi]
10. Dumoulin CL, Souza SP and Darrow RD. Real-Time Position Monitoring of Invasive Devices Using Magnetic-Resonance. Magnet Reson Med. 1993;29:411-415. https://doi.org/10.1002/mrm.1910290322 [doi]
11. Karius A, Strnad V, Lotter M, Kreppner S, Merten R, Fietkau R, Bert C and Schweizer C. Assessment of needle bending and tracking requirements for optimized needle placement in combined intracavitary/interstitial gynecologic brachytherapy. Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft [et al]. 2025. https://doi.org/10.1007/s00066-025-02367-2 [doi]

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http://echo.ismrm.org/p/ISMRM2026/561-05-004