Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/5027
Título: X Radiation dose implications in screening patients with ferromagnetic IOFBs prior to MRI: a literary review
Autor: Jessop, Sarah
Hart, Gabrielle
Santiago, Ana Rita
Samara, Abbas
Markali, Benedicte
Cottier, Yann
Guerreiro, Joana
Andersen, Erik Normann
Momoniat, H.
Jorge, José
England, Andrew
Palavras-chave: Radiology
Computed radiography
Effective dose
Image quality
Intra orbital foreign bodies
Data: 2015
Editora: Open Source, University of Salford
Citação: Jessop S, Hart G, Santiago AR, Samara A, Markali B, Guerreiro J, et al. X Radiation dose implications in screening patients with ferromagnetic IOFBs prior to MRI: a literary review. In Hogg P, Lança L, editors. OPTIMAX 2014 – Radiation dose and image quality optimisation in medical imaging. Salford, UK: Open Source, University of Salford; 2015. p. 53-9.
Resumo: Patients scheduled for a magnetic resonance imaging (MRI) scan sometimes require screening for ferromagnetic Intra Orbital Foreign Bodies (IOFBs). To assess this, they are required to fill out a screening protocol questionnaire before their scan. If it is established that a patient is at high risk, radiographic imaging is necessary. This review examines literature to evaluate which imaging modality should be used to screen for IOFBs, considering that the eye is highly sensitive to ionising radiation and any dose should be minimised. Method: Several websites and books were searched for information, these were as follows: PubMed, Science Direct, Web of Knowledge and Google Scholar. The terms searched related to IOFB, Ionising radiation, Magnetic Resonance Imaging Safety, Image Quality, Effective Dose, Orbits and X-ray. Thirty five articles were found, several were rejected due to age or irrelevance; twenty eight were eventually accepted. Results: There are several imaging techniques that can be used. Some articles investigated the use of ultrasound for investigation of ferromagnetic IOFBs of the eye and others discussed using Computed Tomography (CT) and X-ray. Some gaps in the literature were identified, mainly that there are no articles which discuss the lowest effective dose while having adequate image quality for orbital imaging. Conclusion: X-ray is the best method to identify IOFBs. The only problem is that there is no research which highlights exposure factors that maintain sufficient image quality for viewing IOFBs and keep the effective dose to the eye As Low As Reasonably Achievable (ALARA).
Peer review: yes
URI: http://hdl.handle.net/10400.21/5027
ISBN: 9781907842603
Versão do Editor: http://usir.salford.ac.uk/34439/
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