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Hobson MA, Hu Y, Caldwell B, Cohen GN, Glide-Hurst C, Huang L, Jackson PD, Jang S, Langner U, Lee HJ, Levesque IR, Narayanan S, Park JC, Steffen J, Wu QJ, Zhou Y. AAPM Task Group 334: A guidance document to using radiotherapy immobilization devices and accessories in an MR environment. Med Phys 2024; 51:3822-3849. [PMID: 38648857 DOI: 10.1002/mp.17061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/13/2023] [Accepted: 03/28/2024] [Indexed: 04/25/2024] Open
Abstract
Use of magnetic resonance (MR) imaging in radiation therapy has increased substantially in recent years as more radiotherapy centers are having MR simulators installed, requesting more time on clinical diagnostic MR systems, or even treating with combination MR linear accelerator (MR-linac) systems. With this increased use, to ensure the most accurate integration of images into radiotherapy (RT), RT immobilization devices and accessories must be able to be used safely in the MR environment and produce minimal perturbations. The determination of the safety profile and considerations often falls to the medical physicist or other support staff members who at a minimum should be a Level 2 personnel as per the ACR. The purpose of this guidance document will be to help guide the user in making determinations on MR Safety labeling (i.e., MR Safe, Conditional, or Unsafe) including standard testing, and verification of image quality, when using RT immobilization devices and accessories in an MR environment.
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Affiliation(s)
- Maritza A Hobson
- Department of Radiation Oncology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Yanle Hu
- Department of Radiation Oncology, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Barrett Caldwell
- School of Industrial Engineering, Purdue University, West Lafayette, Indiana, USA
- School of Aeronautics and Astronautics, Purdue University, West Lafayette, Indiana, USA
| | - Gil'ad N Cohen
- Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
| | - Carri Glide-Hurst
- Department of Human Oncology, University of Wisconsin--Madison, Madison, Wisconsin, USA
- Department of Medical Physics, University of Wisconsin--Madison, Madison, Wisconsin, USA
| | - Long Huang
- Department of Radiation Oncology, University of Utah, Salt Lake City, Utah, USA
| | - Paul D Jackson
- Department of Radiation Oncology, Henry Ford Health System, Detroit, Michigan, USA
| | - Sunyoung Jang
- Department of Radiation Oncology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Ulrich Langner
- Department of Radiation Oncology, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Hannah J Lee
- Corewell Health William Beaumont University Hospital, Royal Oak, Michigan, USA
| | - Ives R Levesque
- Gerald Bronfman Department of Oncology and Medical Physics Unit, McGill University, Montreal, QC, Canada
- Department of Medical Physics, McGill University Health Centre, Cedars Cancer Centre, Montreal, QC, Canada
| | - Sreeram Narayanan
- Department of Radiation Oncology, Virginia Mason Cancer Institute, Seattle, Washington, USA
| | - Justin C Park
- Division of Medical Physics, Department of Radiation Oncology, Mayo Clinic, Jacksonville, Florida, USA
| | | | - Q Jackie Wu
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Yong Zhou
- Department of Radiology Services, Corewell Health, Grand Rapids, Michigan, USA
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2
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Lacharie M, Villa A, Milidonis X, Hasaneen H, Chiribiri A, Benedetti G. Role of pulmonary perfusion magnetic resonance imaging for the diagnosis of pulmonary hypertension: A review. World J Radiol 2023; 15:256-273. [PMID: 37823020 PMCID: PMC10563854 DOI: 10.4329/wjr.v15.i9.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/16/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023] Open
Abstract
Among five types of pulmonary hypertension, chronic thromboembolic pulmonary hypertension (CTEPH) is the only curable form, but prompt and accurate diagnosis can be challenging. Computed tomography and nuclear medicine-based techniques are standard imaging modalities to non-invasively diagnose CTEPH, however these are limited by radiation exposure, subjective qualitative bias, and lack of cardiac functional assessment. This review aims to assess the methodology, diagnostic accuracy of pulmonary perfusion imaging in the current literature and discuss its advantages, limitations and future research scope.
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Affiliation(s)
- Miriam Lacharie
- Oxford Centre of Magnetic Resonance Imaging, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Adriana Villa
- Department of Diagnostic and Interventional Radiology, German Oncology Centre, Limassol 4108, Cyprus
| | - Xenios Milidonis
- Deep Camera MRG, CYENS Centre of Excellence, Nicosia, Cyprus, Nicosia 1016, Cyprus
| | - Hadeer Hasaneen
- School of Biomedical Engineering & Imaging Sciences, King's College London, London WC2R 2LS, United Kingdom
| | - Amedeo Chiribiri
- School of Biomedical Engineering and Imaging Sciences, Kings Coll London, Div Imaging Sci, St Thomas Hospital, London WC2R 2LS, United Kingdom
| | - Giulia Benedetti
- Department of Cardiovascular Imaging and Biomedical Engineering, King’s College London, London WC2R 2LS, United Kingdom
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Seravalli E, Kroon PS, Buatti JM, Hall MD, Mandeville HC, Marcus KJ, Onal C, Ozyar E, Paulino AC, Paulsen F, Saunders D, Tsang DS, Wolden SL, Janssens GO. The potential role of MR-guided adaptive radiotherapy in pediatric oncology: Results from a SIOPE-COG survey. Clin Transl Radiat Oncol 2021; 29:71-78. [PMID: 34159265 PMCID: PMC8202186 DOI: 10.1016/j.ctro.2021.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND AND PURPOSE Magnetic resonance guided radiotherapy (MRgRT) has been successfully implemented for several routine clinical applications in adult patients. The purpose of this study is to map the potential benefit of MRgRT on toxicity reduction and outcome in pediatric patients treated with curative intent for primary and metastatic sites. MATERIALS AND METHODS Between May and August 2020, a survey was distributed among SIOPE- and COG-affiliated radiotherapy departments, treating at least 25 pediatrics patients annually and being (candidate) users of a MRgRT system. The survey consisted of a table with 45 rows (clinical scenarios for primary (n = 28) and metastatic (n = 17) tumors) and 7 columns (toxicity reduction, outcome improvement, PTV margin reduction, target volume daily adaptation, online re-planning, intrafraction motion compensation and on-board functional imaging) and the option to answer by 'yes/no' . Afterwards, the Dutch national radiotherapy cohort was used to estimate the percentage of pediatric treatments that may benefit from MRgRT. RESULTS The survey was completed by 12/17 (71% response rate) institutions meeting the survey inclusion criteria. Responders indicated an 'expected benefit' from MRgRT for toxicity/outcome in 7% (for thoracic lymphomas and abdominal rhabdomyosarcomas)/0% and 18% (for mediastinal lymph nodes, lymph nodes located in the liver/splenic hilum, and liver metastases)/0% of the considered scenarios for the primary and metastatic tumor sites, respectively, and a 'possible benefit' was estimated in 64%/46% and 47%/59% of the scenarios. When translating the survey outcome into a clinical perspective a toxicity/outcome benefit, either expected or possible, was anticipated for 55%/24% of primary sites and 62%/38% of the metastatic sites. CONCLUSION Although the benefit of MRgRT in pediatric radiation oncology is estimated to be modest, the potential role for reducing toxicity and improving clinical outcomes warrants further investigation. This fits best within the context of prospective studies or registration trials.
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Affiliation(s)
- Enrica Seravalli
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Petra S. Kroon
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - John M. Buatti
- Departments of Radiation Oncology, University of Iowa, Iowa City, USA
| | - Matthew D. Hall
- Department of Radiation Oncology, Miami Cancer Institute, Miami, FL, USA
| | - Henry C. Mandeville
- Department of Radiotherapy, The Royal Marsden Hospital and Institute of Cancer Research, Sutton, United Kingdom
| | - Karen J. Marcus
- Dana-Farber/Boston Children’s Cancer and Blood Disorders Center, Boston, MA, USA
| | - Cem Onal
- Department of Radiation Oncology, Baskent University, Ankara, Turkey
| | - Enis Ozyar
- Department of Radiation Oncology, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Arnold C. Paulino
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, USA
| | - Frank Paulsen
- Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
| | | | - Derek S. Tsang
- Radiation Medicine Program, University Health Network – Princess Margaret Cancer Centre, Toronto, Canada
| | - Suzanne L. Wolden
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, NY, USA
| | - Geert O. Janssens
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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Damestani NL, O'Daly O, Solana AB, Wiesinger F, Lythgoe DJ, Hill S, de Lara Rubio A, Makovac E, Williams SCR, Zelaya F. Revealing the mechanisms behind novel auditory stimuli discrimination: An evaluation of silent functional MRI using looping star. Hum Brain Mapp 2021; 42:2833-2850. [PMID: 33729637 PMCID: PMC8127154 DOI: 10.1002/hbm.25407] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/12/2021] [Accepted: 03/02/2021] [Indexed: 12/20/2022] Open
Abstract
Looping Star is a near‐silent, multi‐echo, 3D functional magnetic resonance imaging (fMRI) technique. It reduces acoustic noise by at least 25dBA, with respect to gradient‐recalled echo echo‐planar imaging (GRE‐EPI)‐based fMRI. Looping Star has successfully demonstrated sensitivity to the cerebral blood‐oxygen‐level‐dependent (BOLD) response during block design paradigms but has not been applied to event‐related auditory perception tasks. Demonstrating Looping Star's sensitivity to such tasks could (a) provide new insights into auditory processing studies, (b) minimise the need for invasive ear protection, and (c) facilitate the translation of numerous fMRI studies to investigations in sound‐averse patients. We aimed to demonstrate, for the first time, that multi‐echo Looping Star has sufficient sensitivity to the BOLD response, compared to that of GRE‐EPI, during a well‐established event‐related auditory discrimination paradigm: the “oddball” task. We also present the first quantitative evaluation of Looping Star's test–retest reliability using the intra‐class correlation coefficient. Twelve participants were scanned using single‐echo GRE‐EPI and multi‐echo Looping Star fMRI in two sessions. Random‐effects analyses were performed, evaluating the overall response to tones and differential tone recognition, and intermodality analyses were computed. We found that multi‐echo Looping Star exhibited consistent sensitivity to auditory stimulation relative to GRE‐EPI. However, Looping Star demonstrated lower test–retest reliability in comparison with GRE‐EPI. This could reflect differences in functional sensitivity between the techniques, though further study is necessary with additional cognitive paradigms as varying cognitive strategies between sessions may arise from elimination of acoustic scanner noise.
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Affiliation(s)
| | - Owen O'Daly
- Department of Neuroimaging, King's College London, London, UK
| | | | - Florian Wiesinger
- Department of Neuroimaging, King's College London, London, UK.,ASL Europe, GE Healthcare, Munich, Germany
| | - David J Lythgoe
- Department of Neuroimaging, King's College London, London, UK
| | - Simon Hill
- Department of Neuroimaging, King's College London, London, UK
| | | | - Elena Makovac
- Department of Neuroimaging, King's College London, London, UK
| | | | - Fernando Zelaya
- Department of Neuroimaging, King's College London, London, UK
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Lubner RJ, Kondamuri NS, Knoll RM, Ward BK, Littlefield PD, Rodgers D, Abdullah KG, Remenschneider AK, Kozin ED. Review of Audiovestibular Symptoms Following Exposure to Acoustic and Electromagnetic Energy Outside Conventional Human Hearing. Front Neurol 2020; 11:234. [PMID: 32411067 PMCID: PMC7199630 DOI: 10.3389/fneur.2020.00234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 03/11/2020] [Indexed: 12/14/2022] Open
Abstract
Objective: We aim to examine the existing literature on, and identify knowledge gaps in, the study of adverse animal and human audiovestibular effects from exposure to acoustic or electromagnetic waves that are outside of conventional human hearing. Design/Setting/Participants: A review was performed, which included searches of relevant MeSH terms using PubMed, Embase, and Scopus. Primary outcomes included documented auditory and/or vestibular signs or symptoms in animals or humans exposed to infrasound, ultrasound, radiofrequency, and magnetic resonance imaging. The references of these articles were then reviewed in order to identify primary sources and literature not captured by electronic search databases. Results: Infrasound and ultrasound acoustic waves have been described in the literature to result in audiovestibular symptomology following exposure. Technology emitting infrasound such as wind turbines and rocket engines have produced isolated reports of vestibular symptoms, including dizziness and nausea and auditory complaints, such as tinnitus following exposure. Occupational exposure to both low frequency and high frequency ultrasound has resulted in reports of wide-ranging audiovestibular symptoms, with less robust evidence of symptomology following modern-day exposure via new technology such as remote controls, automated door openers, and wireless phone chargers. Radiofrequency exposure has been linked to both auditory and vestibular dysfunction in animal models, with additional historical evidence of human audiovestibular disturbance following unquantifiable exposure. While several theories, such as the cavitation theory, have been postulated as a cause for symptomology, there is extremely limited knowledge of the pathophysiology behind the adverse effects that particular exposure frequencies, intensities, and durations have on animals and humans. This has created a knowledge gap in which much of our understanding is derived from retrospective examination of patients who develop symptoms after postulated exposures. Conclusion and Relevance: Evidence for adverse human audiovestibular symptomology following exposure to acoustic waves and electromagnetic energy outside the spectrum of human hearing is largely rooted in case series or small cohort studies. Further research on the pathogenesis of audiovestibular dysfunction following acoustic exposure to these frequencies is critical to understand reported symptoms.
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Affiliation(s)
- Rory J. Lubner
- Warren Alpert Medical School of Brown University, Providence, RI, United States
- Department of Otolaryngology, Harvard Medical School, Boston, MA, United States
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, United States
| | - Neil S. Kondamuri
- Warren Alpert Medical School of Brown University, Providence, RI, United States
- Department of Otolaryngology, Harvard Medical School, Boston, MA, United States
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, United States
| | - Renata M. Knoll
- Department of Otolaryngology, Harvard Medical School, Boston, MA, United States
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, United States
| | - Bryan K. Ward
- Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | | | - Derek Rodgers
- Madigan Army Medical Center, Tacoma, WA, United States
| | - Kalil G. Abdullah
- Department of Neurosurgery, UT Southwestern Medical Center, Dallas, TX, United States
| | - Aaron K. Remenschneider
- Department of Otolaryngology, Harvard Medical School, Boston, MA, United States
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, United States
- Department of Otolaryngology, University of Massachusetts Medical Center, Worcester, MA, United States
| | - Elliott D. Kozin
- Department of Otolaryngology, Harvard Medical School, Boston, MA, United States
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, United States
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Berger EH, Dobie RA. Acoustic trauma from continuous noise: Minimum exposures, issues in clinical trial design, and comments on magnetic resonance imaging exposures. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2019; 146:3873. [PMID: 31795647 DOI: 10.1121/1.5132712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Acoustic trauma (AT) is permanent hearing loss after a single noise exposure. A few human cases resulting from continuous, i.e., nonimpulsive noise, have been reported as reviewed by Ward [(1991). "Hearing loss from noise and music," presented at Audio Engineering Society, New York, October 4-8]. This paper updates that review by examining 11 cases in nine reports, from 1950 to 2006, with the intention of determining minimum exposures that may cause AT, including the potential risk of exposure to noise from magnetic resonance imaging machines. Diffuse-field related levels above 120 dBA for 10 s or more, or above 130 dBA for 2-3 s (values well above OSHA's unprotected exposure limits), can lead to AT. These cases appear to represent a susceptible fraction of the population, because much more intense exposures (e.g., 130 dBA for 32 min) have been tolerated by groups of volunteers who suffered only temporary threshold shifts. AT from continuous noise is unlikely to occur in OSHA-compliant hearing conservation programs, and probably rare enough in the general civilian population that clinical trials of drugs aimed at treating it are unlikely to be practical. AT from impulse noise, such as gunfire, which is specifically not the topic of the current work, is more amenable to clinical trials, especially in military settings.
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Affiliation(s)
- Elliott H Berger
- Berger Acoustical Consulting, 221 Olde Mill Cove, Indianapolis, Indiana 46260, USA
| | - Robert A Dobie
- University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, Texas 78229, USA
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7
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Benacchio S, Doutres O, Varoquaux A, Wagnac É, Le Troter A, Callot V, Sgard F. Use of magnetic resonance image registration to estimate displacement in the human earcanal due to the insertion of in-ear devices. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2019; 146:2452. [PMID: 31671972 DOI: 10.1121/1.5126857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
In-ear devices are used in a wide range of applications for which the device's usability and/or efficiency is strongly related to comfort aspects that are influenced by the mechanical interaction between the device and the walls of the earcanal. Although the displacement of the earcanal walls due to the insertion of the device is an important characteristic of this interaction, existing studies on this subject are very limited. This paper proposes a method to estimate this displacement in vivo using a registration technique on magnetic resonance images. The amplitude, the location and the direction of the earcanal wall displacement are computed for four types of earplugs used by one participant. These displacements give indications on how each earplug deforms the earcanal for one specific earcanal geometry and one specific earplug insertion. Although the displacement due to a specific earplug family cannot be generalized using the results of this paper, the latter help to understand where, how much, and how each studied earplug deforms the earcanal of the participant. This method is revealed as a promising tool to investigate further acoustical and physical comfort aspects of in-ear devices.
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Affiliation(s)
- Simon Benacchio
- Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), 1100 Rue Notre-Dame O, Montréal, Québec, H3C 1K3, Canada
| | - Olivier Doutres
- Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), 1100 Rue Notre-Dame O, Montréal, Québec, H3C 1K3, Canada
| | - Arthur Varoquaux
- Aix Marseille Université, CNRS, CRMBM, UMR 7339, Marseille, France
| | - Éric Wagnac
- Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), 1100 Rue Notre-Dame O, Montréal, Québec, H3C 1K3, Canada
| | - Arnaud Le Troter
- Aix Marseille Université, CNRS, CRMBM, UMR 7339, Marseille, France
| | - Virginie Callot
- Aix Marseille Université, CNRS, CRMBM, UMR 7339, Marseille, France
| | - Franck Sgard
- Institut de recherche Robert-Sauvé en santé et sécurité du travail, 505 Boulevard de Maisonneuve O, Montréal, Québec, H3A 3C2, Canada
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Hudson D, Jones AP. A 3-year review of MRI safety incidents within a UK independent sector provider of diagnostic services. BJR Open 2019; 1:20180006. [PMID: 33178906 PMCID: PMC7592402 DOI: 10.1259/bjro.20180006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/08/2018] [Accepted: 08/13/2018] [Indexed: 11/23/2022] Open
Abstract
A review of MRI safety incidents conducted over a 3-year period for a large independent sector diagnostic imaging provider in the UK. The review took a systematic approach using reports logged on an internal incident reporting system that were then categorised and analysed for themes and trends. Notable cases and actions taken are also described from within the period. MRI safety-related events made up 7.5% of the total number of incident reports submitted and 15.5% of all MRI-related reports. The MR safety-related incidence report rate was 0.05% (1 per 1987 patients), which is relatively low considering the number of patients seen in our facilities each day. Internal MRI safety events indicated the main trends to be around referral of contraindicated devices (32% of reports) and failure in the screening process (21.5%-either due to unexpected implants or being unable to confirm safety). To improve practice and work to reduce incidents, advice and instructional materials were developed. The review suggests a potential approach to categorisation of MRI-related safety events which could allow comparisons to be made across organisations, helping to look for trends and guide learning. It also provides insight into the state of MRI safety within the organisation, a rationale for some of the interventions introduced to improve safety, and discussion around common issues arising in MRI safety.
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Affiliation(s)
| | - Andrew P Jones
- Christie Medical Physics and Engineering, The Christie NHS Trust, Manchester, UK
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9
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Wilson SR, Shinde S, Appleby I, Boscoe M, Conway D, Dryden C, Ferguson K, Gedroyc W, Kinsella SM, Nathanson MH, Thorne J, White M, Wright E. Guidelines for the safe provision of anaesthesia in magnetic resonance units 2019. Anaesthesia 2019; 74:638-650. [DOI: 10.1111/anae.14578] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2018] [Indexed: 01/02/2023]
Affiliation(s)
- S. R. Wilson
- Department of Neuro‐anaesthesia and Neurocritical Care National Hospital for Neurology and Neurosurgery LondonUK and Neuro Anaesthesia and Critical Care Society of Great Britain and Ireland (Co‐Chair)
| | - S. Shinde
- Department of Anaesthesia North Bristol NHS Trust BristolUK and Vice President, Association of Anaesthetists (Co‐Chair)
| | - I. Appleby
- Department of Neuro‐anaesthesia and Neurocritical Care National Hospital for Neurology and Neurosurgery LondonUK and Neuro Anaesthesia and Critical Care Society of Great Britain and Ireland
| | - M. Boscoe
- Royal College of Anaesthetists LondonUK and Society of Anaesthetists in Radiology
| | - D. Conway
- Department of Anaesthesia Chelsea and Westminster Hospital LondonUK and Trainee Committee, Association of Anaesthetists
| | - C. Dryden
- Jackson Rees Department of Paediatric Anaesthesia Alder Hey Children's Hospital LiverpoolUK and Association of Paediatric Anaesthetists of Great Britain and Ireland
| | - K. Ferguson
- Department of Anaesthesia Aberdeen Royal Infirmary Aberdeen UK and Association of Anaesthetists Safety Representative
| | - W. Gedroyc
- Imperial College LondonUK and Royal College of Radiologists
| | - S. M. Kinsella
- Department of Anaesthesia St Michaels Hospital BristolUK and Editor, Anaesthesia
| | - M. H. Nathanson
- Department of Anaesthesia Nottingham University Hospital NottinghamUK and Immediate Past Honorary Secretary, Association of Anaesthetists
| | - J. Thorne
- Department of Neurosurgery Salford Royal Foundation Trust SalfordUK and Society of British Neurological Surgeons
| | | | - E. Wright
- Jackson Rees Department of Paediatric Anaesthesia Alder Hey Children's Hospital Liverpool UK
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