ArticleJournal of applied clinical medical physics2017
Electromagnetic tracking (EMT) technology for improved treatment quality assurance in interstitial brachytherapy.
Article in Journal of applied clinical medical physics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Implant geometry as a patient-specific identifier in breast brachytherapy: leveraging electromagnetic tracking to prevent treatment mix-ups.Technical innovations & patient support in radiation oncology · 2026Article
- Automatic catheter digitization in breast brachytherapy.Medical physics · 2025Article
- Is model-based dose calculation based on cone-beam computed tomography suitable for adaptive treatment planning in brachytherapy?Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2025Article
- Electromagnetic tracking for integrated quality assurance in breast interstitial brachytherapy: The impact of registration method.Journal of contemporary brachytherapy · 2024Article
- A novel multi-modality imaging phantom for validating interstitial needle guidance for high dose rate gynecological brachytherapy.Journal of applied clinical medical physics · 2023Article
- On electromagnetic head digitization in MEG and EEG.Scientific reports · 2023Article
- Advantages of TRUS-based delineation for high-dose-rate prostate brachytherapy planning.Journal of contemporary brachytherapy · 2022Article
- A Radiolucent Electromagnetic Tracking System for Use with Intraoperative X-ray Imaging.Sensors (Basel, Switzerland) · 2021Article
- A review of brachytherapy physical phantoms developed over the last 20 years: clinical purpose and future requirements.Journal of contemporary brachytherapy · 2021Review
- Electromagnetic (EM) catheter path tracking in ultrasound-guided brachytherapy of the breast.International journal of computer assisted radiology and surgery · 2020Article
- HDR brachytherapy in vivo source position verification using a 2D diode array: A Monte Carlo study.Journal of applied clinical medical physics · 2018Article
- A tool to automatically analyze electromagnetic tracking data from high dose rate brachytherapy of breast cancer patients.PloS one · 2017Article
- Electromagnetic tracking for treatment verification in interstitial brachytherapy.Journal of contemporary brachytherapy · 2016Review
- Review of strategies for MRI based reconstruction of endocavitary and interstitial applicators in brachytherapy of cervical cancer.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation OncologyReview
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Electromagnetic Tracking (EMT) is a novel technique for error detection and quality assurance (QA) in interstitial high dose rate brachytherapy (HDR-iBT). The purpose of this study is to provide a concept for data acquisition developed as part of a clinical evaluation study on the use of EMT during interstitial treatment of breast cancer patients. The stability, accuracy, and precision of EMT-determined dwell positions were quantified. Dwell position reconstruction based on EMT was investigated on CT table, HDR table and PDR bed to examine the influence on precision and accuracy in a typical clinical workflow. All investigations were performed using a precise PMMA phantom. The track of catheters inserted in that phantom was measured by manually inserting a 5 degree of freedom (DoF) sensor while recording the position of three 6DoF fiducial sensors on the phantom surface to correct motion influences. From the corrected data, dwell positions were reconstructed along the catheter's track. The accuracy of the EMT-determined dwell positions was quantified by the residual distances to reference dwell positions after using a rigid registration. Precision and accuracy were investigated for different phantom-table and sensor-field generator (FG) distances. The measured precision of the EMT-determined dwell positions was ≤ 0.28 mm (95th percentile). Stability tests showed a drift of 0.03 mm in the first 20 min of use. Sudden shaking of the FG or (large) metallic objects close to the FG degrade the precision. The accuracy with respect to the reference dwell positions was on all clinical tables < 1 mm at 200 mm FG distance and 120 mm phantom-table distance. Phantom measurements showed that EMT-determined localization of dwell positions in HDR-iBT is stable, precise, and sufficiently accurate for clinical assessment. The presented method may be viable for clinical applications in HDR-iBT, like implant definition, error detection or quantification of uncertainties. Further clinical investigations are needed.
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