Ulrike Kielburg1, Felix H Blankenstein2. 1. CharitéCentrum 03 - Zahn‑, Mund- und Kieferheilkunde, Abteilung für Zahnärztliche Prothetik, Funktionslehre und Alterszahnmedizin, Charité - Universitätsmedizin Berlin, Aßmannshauser Str. 4-6, 14197, Berlin, Deutschland. ulrike.kielburg@charite.de. 2. CharitéCentrum 03 - Zahn‑, Mund- und Kieferheilkunde, Abteilung für Zahnärztliche Prothetik, Funktionslehre und Alterszahnmedizin, Charité - Universitätsmedizin Berlin, Aßmannshauser Str. 4-6, 14197, Berlin, Deutschland.
Abstract
CONTEXT: Although in recent times more research has been done on interactions of metallic dental objects in magnetic resonance imaging (MRI), radiologists are often uncertain whether the objects should be removed or can be retained prior to an impending examination. On the one hand, they want to avoid unnecessary material removal which is associated with costs and potential damage of the dental object. On the other hand, they fear material-induced susceptibility artefacts will impair the diagnostic workup so that examinations will have to be repeated. The lack of information complicates adequate decision making for radiologists. AIM: The aim of this survey was to evaluate the information that is currently available to radiologists regarding orthodontic appliances of the head and neck region in the MRI and determine how to handle these situations in a radiologist's every day routine. Therefore, this study can reveal the need for further research. MATERIALS AND METHODS: The questionnaire was published in the 9/2017 issue of the journal Der Radiologe and sent as an electronic version by the BDR (Professional Association of German Radiologists) to their approximately 1800 members. In addition, the radiological institutes of 55 German university and maximum care clinics were contacted. RESULTS: In all, 74 evaluable responses were received within a period of 16 weeks, representing a response rate of 3.7%. Altogether, the participants rate the risks of a detachment or heating of orthodontic appliances as too high. The interviewed radiologists categorize the available data as insufficient and they almost unanimously (97.3%) demand a declaration requirement for the manufacturers. There is a clear need for further education (78.3%). Intraoral measurement of the magnetic permeability is considered as a useful tool to determine possible interactions with the MRI by 40.5%.
CONTEXT: Although in recent times more research has been done on interactions of metallic dental objects in magnetic resonance imaging (MRI), radiologists are often uncertain whether the objects should be removed or can be retained prior to an impending examination. On the one hand, they want to avoid unnecessary material removal which is associated with costs and potential damage of the dental object. On the other hand, they fear material-induced susceptibility artefacts will impair the diagnostic workup so that examinations will have to be repeated. The lack of information complicates adequate decision making for radiologists. AIM: The aim of this survey was to evaluate the information that is currently available to radiologists regarding orthodontic appliances of the head and neck region in the MRI and determine how to handle these situations in a radiologist's every day routine. Therefore, this study can reveal the need for further research. MATERIALS AND METHODS: The questionnaire was published in the 9/2017 issue of the journal Der Radiologe and sent as an electronic version by the BDR (Professional Association of German Radiologists) to their approximately 1800 members. In addition, the radiological institutes of 55 German university and maximum care clinics were contacted. RESULTS: In all, 74 evaluable responses were received within a period of 16 weeks, representing a response rate of 3.7%. Altogether, the participants rate the risks of a detachment or heating of orthodontic appliances as too high. The interviewed radiologists categorize the available data as insufficient and they almost unanimously (97.3%) demand a declaration requirement for the manufacturers. There is a clear need for further education (78.3%). Intraoral measurement of the magnetic permeability is considered as a useful tool to determine possible interactions with the MRI by 40.5%.
Entities:
Keywords:
Artefacts; Further training; Interactions; Questionnaire; Safety
Authors: J Matthew Elison; V Leroy Leggitt; Matthew Thomson; Udo Oyoyo; N Dan Wycliffe Journal: Am J Orthod Dentofacial Orthop Date: 2008-10 Impact factor: 2.650
Authors: M Hasegawa; K Miyata; Y Abe; T Ishii; T Ishigami; K Ohtani; E Nagai; T Ohyama; Y Umekawa; S Nakabayashi Journal: Dentomaxillofac Radiol Date: 2015-03-18 Impact factor: 2.419