ArticleInternational journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group2016
Drift correction for accurate PRF-shift MR thermometry during mild hyperthermia treatments with MR-HIFU.
Article in International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 55 citations in OpenAlex.
- Roadmap towards personalized approaches and safety considerations in non-ionizing radiation: from dosimetry to therapeutic and diagnostic applications.Physics in medicine and biology · 2026Review
- Volumetric thermometry in moving tissues using stack-of-radial MRI and an image-navigated multi-baseline proton resonance frequency shift method.Magnetic resonance in medicine · 2026Article
- EPI proton resonant frequency temperature mapping at 0.5T in the brain: Comparison to single-echo gradient recalled echo.Magnetic resonance in medicine · 2025Article
- Overview of Therapeutic Ultrasound Applications and Safety Considerations: 2024 Update.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2025Review
- Microbubble-enhanced transcranial MR-guided focused ultrasound brain hyperthermia: heating mechanism investigation using finite element method.Ultrasonics sonochemistry · 2024Article
- Technical advances in motion-robust MR thermometry.Magnetic resonance in medicine · 2024Review
- Focused ultrasound heating in brain tissue/skull phantoms with 1 MHz single-element transducer.Journal of ultrasound · 2024Article
- Superparamagnetic iron oxide nanoparticle enhanced percutaneous microwave ablation: Ex-vivo characterization using magnetic resonance thermometry.Medical physics · 2024Article
- Volumetric hyperthermia delivery using the ExAblate Body MR-guided focused ultrasound system.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2024Article
- Straightforward Magnetic Resonance Temperature Measurements Combined with High Frame Rate and Magnetic Susceptibility Correction.Bioengineering (Basel, Switzerland) · 2023Article
- MR-guided ultrasound-stimulated microbubble therapy enhances radiation-induced tumor response.Scientific reports · 2023Article
- Motion-robust, multi-slice, real-time MR thermometry for MR-guided thermal therapy in abdominal organs.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2023Article
- A k-space-based method to measure and correct for temporal BMagnetic resonance in medicine · 2022Article
- Multi-Wavelength Photo-Magnetic Imaging System for Photothermal Therapy Guidance.Lasers in surgery and medicine · 2021Article
- Contactless Thermometry by MRI and MRS: Advanced Methods for Thermotherapy and Biomaterials.iScience · 2020Review
- The effect of injected dose on localized tumor accumulation and cardiac uptake of doxorubicin in a Vx2 rabbit tumor model using MR-HIFU mild hyperthermia and thermosensitive liposomes.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2020Article
- High-resolution intravascular MRI-guided perivascular ultrasound ablation.Magnetic resonance in medicine · 2020Article
- Simulation-based design and characterization of a microwave applicator for MR-guided hyperthermia experimental studies in small animals.Biomedical physics & engineering express · 2020Article
- A phase-cycled temperature-sensitive fast spin echo sequence with conductivity bias correction for monitoring of mild RF hyperthermia with PRFS.Magma (New York, N.Y.) · 2019Article
- Feasibility and safety assessment of magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU)-mediated mild hyperthermia in pelvic targets evaluated using anInternational journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2019Article
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Authors and funding
8 authors at 3 institutions in 3 countries.
Funding
Abstract
unlabelledThere is growing interest in performing hyperthermia treatments with clinical magnetic resonance imaging-guided high-intensity focused ultrasound (MR-HIFU) therapy systems designed for tissue ablation. During hyperthermia treatment, however, due to the narrow therapeutic window (41-45 °C), careful evaluation of the accuracy of proton resonant frequency (PRF) shift MR thermometry for these types of exposures is required. PURPOSE: The purpose of this study was to evaluate the accuracy of MR thermometry using a clinical MR-HIFU system equipped with a hyperthermia treatment algorithm.
methodsMild heating was performed in a tissue-mimicking phantom with implanted temperature sensors using the clinical MR-HIFU system. The influence of image-acquisition settings and post-acquisition correction algorithms on the accuracy of temperature measurements was investigated. The ability to achieve uniform heating for up to 40 min was evaluated in rabbit experiments.
resultsAutomatic centre-frequency adjustments prior to image-acquisition corrected the image-shifts in the order of 0.1 mm/min. Zero- and first-order phase variations were observed over time, supporting the use of a combined drift correction algorithm. The temperature accuracy achieved using both centre-frequency adjustment and the combined drift correction algorithm was 0.57° ± 0.58 °C in the heated region and 0.54° ± 0.42 °C in the unheated region.
conclusionAccurate temperature monitoring of hyperthermia exposures using PRF shift MR thermometry is possible through careful implementation of image-acquisition settings and drift correction algorithms. For the evaluated clinical MR-HIFU system, centre-frequency adjustment eliminated image shifts, and a combined drift correction algorithm achieved temperature measurements with an acceptable accuracy for monitoring and controlling hyperthermia exposures.
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