Browsing by author "Ter Haar, Gail"
Now showing items 1-16 of 16
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A comprehensive model for heat-induced radio-sensitisation.
Brüningk, SC; Ijaz, J; Rivens, I; Nill, S; Ter Haar, G; et al. (TAYLOR & FRANCIS LTD, 2017-07-05)Combined radiotherapy (RT) and hyperthermia (HT) treatments may improve treatment outcome by heat induced radio-sensitisation. We propose an empirical cell survival model (AlphaR model) to describe this multimodality ... -
A Review of High-Intensity Focused Ultrasound in Urology.
Cranston, D; Leslie, T; Ter Haar, G (MDPI, 2021-11-14)This review provides an introduction to high-intensity focused ultrasound (HIFU) and reviews its historical and current use in urological surgery. Current and historical literature (1927-2020), including that describing ... -
AAPM Task Group 241: A medical physicist's guide to MRI-guided focused ultrasound body systems.
Payne, A; Chopra, R; Ellens, N; Chen, L; Ghanouni, P; et al. (WILEY, 2021-07-29)Magnetic resonance-guided focused ultrasound (MRgFUS) is a completely non-invasive technology that has been approved by FDA to treat several diseases. This report, prepared by the American Association of Physicist in ... -
Dependence of inertial cavitation induced by high intensity focused ultrasound on transducer F-number and nonlinear waveform distortion.
Khokhlova, T; Rosnitskiy, P; Hunter, C; Maxwell, A; Kreider, W; et al. (ACOUSTICAL SOC AMER AMER INST PHYSICS, 2018-09-01)Pulsed high intensity focused ultrasound was shown to enhance chemotherapeutic drug uptake in tumor tissue through inertial cavitation, which is commonly assumed to require peak rarefactional pressures to exceed a certain ... -
Evaluation of Quality of Life Outcomes Following Palliative Treatment of Bone Metastases with Magnetic Resonance-guided High Intensity Focused Ultrasound: An International Multicentre Study.
Harding, D; Giles, SL; Brown, MRD; Ter Haar, GR; van den Bosch, M; et al. (ELSEVIER SCIENCE LONDON, 2018-04-01)AIMS: To determine quality of life (QoL) outcomes after palliation of pain from bone metastases using magnetic resonance-guided high intensity focused ultrasound (MR-guided HIFU), measured using the European Organization ... -
Focused ultrasound transducer spatial peak intensity estimation: a comparison of methods.
Civale, J; Rivens, I; Shaw, A; Ter Haar, G (2018-03-07)Characterisation of the spatial peak intensity at the focus of high intensity focused ultrasound transducers is difficult because of the risk of damage to hydrophone sensors at the high focal pressures generated. Hill et ... -
Focused ultrasound transducer spatial peak intensity estimation: a comparison of methods.
Civale, J; Rivens, I; Shaw, A; Ter Haar, G (IOP PUBLISHING LTD, 2018-03-07)Characterisation of the spatial peak intensity at the focus of high intensity focused ultrasound transducers is difficult because of the risk of damage to hydrophone sensors at the high focal pressures generated. Hill et ... -
Focused Ultrasound-Mediated Hyperthermia in Vitro: An Experimental Arrangement for Treating Cells under Tissue-Mimicking Conditions.
Brüningk, SC; Rivens, I; Mouratidis, P; Ter Haar, G (ELSEVIER SCIENCE INC, 2019-12-01)An experimental arrangement that allows in vitro exposure of cells to focused ultrasound-mediated hyperthermia (43°C-55°C) in a tissue-mimicking phantom with biological, acoustic and thermal properties comparable to those ... -
Guidelines for Cleaning Transvaginal Ultrasound Transducers Between Patients.
Abramowicz, JS; Evans, DH; Fowlkes, JB; Maršal, K; terHaar, G; et al. (2017-05)The purpose of this article is to provide guidance regarding the cleaning and disinfection of transvaginal ultrasound probes. These recommendations are also applicable to transrectal probes. -
In vitro characterisation of ultrasound-induced heating effects in the mother and fetus: A clinical perspective.
Smith, SF; Miloro, P; Axell, R; Ter Haar, G; Lees, C (SAGE PUBLICATIONS LTD, 2020-09-14)INTRODUCTION: The quantification of heating effects during exposure to ultrasound is usually based on laboratory experiments in water and is assessed using extrapolated parameters such as the thermal index. In our study, ... -
ISUOG Safety Committee Position Statement on use of personal protective equipment and hazard mitigation in relation to SARS-CoV-2 for practitioners undertaking obstetric and gynecological ultrasound.
Abramowicz, JS; Basseal, JM; Brezinka, C; Dall'Asta, A; Deng, J; et al. (WILEY, 2020-06-01) -
MR guided high intensity focused ultrasound (MRgHIFU) for treating recurrent gynaecological tumours: a pilot feasibility study.
Giles, SL; Imseeh, G; Rivens, I; Ter Haar, GR; Taylor, A; et al. (BRITISH INST RADIOLOGY, 2019-05-16)OBJECTIVE: To assess the feasibility of targeting recurrent gynaecological tumours with MR guided high intensity focused ultrasound (MRgHIFU). METHODS: 20 patients with recurrent gynaecological tumours were prospectively ... -
Noninvasive high-intensity focused ultrasound treatment of twin-twin transfusion syndrome: A preliminary in vivo study.
Shaw, CJ; Civale, J; Botting, KJ; Niu, Y; Ter Haar, G; et al. (AMER ASSOC ADVANCEMENT SCIENCE, 2016-07-13)We investigated the efficacy, maternofetal responses, and safety of using high-intensity focused ultrasound (HIFU) for noninvasive occlusion of placental vasculature compared to sham treatment in anesthetized pregnant ... -
Prediction of pelvic tumour coverage by magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) from referral imaging.
Lam, NFD; Rivens, I; Giles, SL; Harris, E; deSouza, NM; et al. (TAYLOR & FRANCIS LTD, 2020-01-01)BACKGROUND: Patient suitability for magnetic resonance-guided high intensity focused ultrasound (MRgHIFU) ablation of pelvic tumors is initially evaluated clinically for treatment feasibility using referral images, acquired ... -
'Relationship between thermal dose and cell death for "rapid" ablative and "slow" hyperthermic heating'.
Mouratidis, PXE; Rivens, I; Civale, J; Symonds-Tayler, R; Ter Haar, G (TAYLOR & FRANCIS LTD, 2019-01-01)AIM: Thermal isoeffective dose (TID) has not been convincingly validated for application to predict biological effects from rapid thermal ablation (e.g., using >55 °C). This study compares the classical method of quantifying ... -
Trans-abdominal in vivo placental vessel occlusion using High Intensity Focused Ultrasound.
Shaw, CJ; Rivens, I; Civale, J; Botting, KJ; Ter Haar, G; et al. (NATURE PORTFOLIO, 2018-09-11)Pre-clinically, High Intensity Focused Ultrasound (HIFU) has been shown to safely and effectively occlude placental blood vessels in the acute setting, when applied through the uterus. However, further development of the ...