1
|
Ferrari P, Venturi G, Campani L, Mariotti F, Becker F, Jansen J, Jovanović Z, Krstić D, Teles P. Medical staff monitoring in interventional cardiology: over apron dosemeter placement based on measurements and simulations. RADIATION PROTECTION DOSIMETRY 2024; 200:802-807. [PMID: 38773775 DOI: 10.1093/rpd/ncae125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 04/18/2024] [Accepted: 05/09/2024] [Indexed: 05/24/2024]
Abstract
Interventional cardiology is characterized by high radiation exposure for both the patient and the operator. Adequate shielding and monitoring of the operator are fundamental to comply with radiation protection principles. In a previous work, the effect on the dose of the dosemeter position on the chest was studied. In this paper, the investigation has been completed, employing an anthropomorphic thorax phantom, equipped with arms. Although there are differences between the Monte Carlo simulations and the measurements, similar trends are observed, showing that the reduction in dose, due to the arms, is between 20 and 60%, compared with the situation without arms. For that reason, considering a dosemeter placed on the chest, the upper position, which is the least affected by the arms, should be preferred while the extreme lateral position, near the armpit, should be avoided.
Collapse
Affiliation(s)
- Paolo Ferrari
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, IRP-Radiation Protection Institute, Bologna 40129, Italy
| | | | - Lorenzo Campani
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, IRP-Radiation Protection Institute, Bologna 40129, Italy
| | - Francesca Mariotti
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, IRP-Radiation Protection Institute, Bologna 40129, Italy
| | - Frank Becker
- KIT-Karlsruhe Institute of Technology, Institute for Nuclear Waste Disposal, Eggenstein-Leopoldshafen 76344, Germany
| | - Jan Jansen
- UK Health Security Agency, Oxon OX11 0RQ, United Kingdom
| | - Zoran Jovanović
- Faculty of Science, University of Kragujevac, Kragujevac 34000, Serbia
| | - Dragana Krstić
- Faculty of Science, University of Kragujevac, Kragujevac 34000, Serbia
| | - Pedro Teles
- Faculty of Science, University of Porto and CI-IPOP (Porto Cancer Institute Research Centre), Porto 4169-007, Portugal
| |
Collapse
|
2
|
Vanhavere F, Van Hoey O. Advances in personal dosimetry towards real-time dosimetry. RADIAT MEAS 2022. [DOI: 10.1016/j.radmeas.2022.106862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
3
|
What Is Worth Knowing in Interventional Practices about Medical Staff Radiation Exposure Monitoring: A Review of Recent Outcomes of EURADOS Working Group 12. ENVIRONMENTS 2022. [DOI: 10.3390/environments9040053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
EURADOS (European Radiation Dosimetry Group) Working Group 12 (WG12) SG1 activities are aimed at occupational radiation protection and individual monitoring in X-ray and nuclear medicine practices. In recent years, many studies have been carried out in these fields, especially for interventional radiology and cardiology workplaces (IC/IR). The complexity of the exposure conditions of the medical staff during interventional practices makes the radiation protection and monitoring of the exposed workers a challenging task. The scope of the present work is to review some of the main results obtained within WG12 activities about scattered field characterization and personal dosimetry that could be very useful in increasing the quality of radiation protection of the personnel, safety, and awareness of radiation risk. Two papers on Monte Carlo modelling of interventional theater and three papers on active personal dosimeters (APDs) for personnel monitoring were considered in the review. More specifically, Monte Carlo simulation was used as the main tool to characterize the levels of exposure of the medical staff, allowing to determine how beam energy and direction can have an impact on the doses received by the operators. Indeed, the simulations provided information about the exposure of the operator’s head, and the study concluded with the determination of an eye-lens protection factor when protection goggles and a ceiling shielding are used. Moreover, the review included the results of studies on active personal dosimeters, their use in IC/IR workplaces, and how they respond to calibration fields, with X-ray standard and pulsed beams. It was shown that APDs are insensitive to backscatter radiation, but some of them could not respond correctly to the very intense pulsed fields (as those next to the patient in interventional practices). The measurements during interventional procedures showed the potential capability of the employment of APDs in hospitals.
Collapse
|
4
|
O'Connor U, Carinou E, Clairand I, Ciraj-Bjelac O, De Monte F, Domienik-Andrzejewska J, Ferrari P, Ginjaume M, Hršak H, Hupe O, Knežević Ž, Sans Merce M, Sarmento S, Siiskonen T, Vanhavere F. Recommendations for the use of active personal dosemeters (APDs) in interventional workplaces in hospitals. Phys Med 2021; 87:131-135. [PMID: 34153572 DOI: 10.1016/j.ejmp.2021.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/04/2021] [Accepted: 05/08/2021] [Indexed: 10/21/2022] Open
Abstract
Occupational radiation doses from interventional procedures have the potential to be relatively high. The requirement to optimise these doses encourages the use of electronic or active personal dosimeters (APDs) which are now increasingly used in hospitals. They are typically used in tandem with a routine passive dosimetry monitoring programme, with APDs used for real-time readings, for training purposes and when new imaging technology is introduced. However, there are limitations when using APDs. A survey in hospitals to identify issues related to the use of APDs was recently completed, along with an extensive series of APD tests by the EURADOS Working Group 12 on Dosimetry for Medical Imaging. The aim of this review paper is to summarise the state of the art regarding the use of APDs. We also used the results of our survey and our tests to develop a set of recommendations for the use of APDs in the clinical interventional radiology/cardiology settings, and draw attention to some of the current challenges.
Collapse
Affiliation(s)
| | - E Carinou
- Greek Atomic Energy Commission, EEAE, Agia Paraskevi, Attiki, Greece
| | - I Clairand
- IRSN, Institute for Radiological Protection and Nuclear Safety, Fontenay-aux-Roses, France
| | - O Ciraj-Bjelac
- Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - F De Monte
- Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | | | - P Ferrari
- ENEA. IRP-Radiation Protection Institute, Bologna, Italy
| | - M Ginjaume
- UPC, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - H Hršak
- University Hospital Centre Zagreb, Croatia
| | - O Hupe
- Physikalisch-Technische Bundesanstalt (PTB), 38116 Braunschweig, Germany
| | - Ž Knežević
- Ruđer Bošković Institute RBI, Zagreb, Croatia
| | - M Sans Merce
- CHUV, University Hospital of Lausanne, Lausanne, Switzerland; HUG, University Hospital of Geneva, Geneva, Switzerland
| | - S Sarmento
- IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | | | - F Vanhavere
- SCK-CEN, Belgian Nuclear Research Centre, Mol, Belgium
| |
Collapse
|
5
|
Nowak M, Carbonez P, Krauss M, Verdun FR, Damet J. Characterisation and mapping of scattered radiation fields in interventional radiology theatres. Sci Rep 2020; 10:18754. [PMID: 33127938 PMCID: PMC7599331 DOI: 10.1038/s41598-020-75257-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 09/30/2020] [Indexed: 12/02/2022] Open
Abstract
We used the Timepix3 hybrid pixel detector technology in order to determine the exposure of medical personnel to ionizing radiation in an interventional radiology room. We measured the energy spectra of the scattered radiation generated by the patient during X-ray image-guided interventional procedures. We performed measurements at different positions and heights within the theatre. We first observed a difference in fluence for each staff member. As expected, we found that the person closest to the X-ray tube is the most exposed while the least exposed staff member is positioned at the patient’s feet. Additionally, we observed a shift in energy from head to toe for practitioners, clearly indicating a non-homogenous energy exposure. The photon counting Timepix3 detector provides a new tool for radiation field characterisation that is easier-to-use and more compact than conventional X-ray spectrometers. The spectral information is particularly valuable for optimising the use of radiation protection gear and improving dosimetry surveillance programs. We also found the device very useful for training purposes to provide awareness and understanding about radiation protection principles among interventional radiology staff.
Collapse
Affiliation(s)
- M Nowak
- CERN, European Organization for Nuclear Research, Geneva, Switzerland. .,Institut of Radiation Physics, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
| | - P Carbonez
- CERN, European Organization for Nuclear Research, Geneva, Switzerland.,Department of Radiology, University of Otago, Christchurch, New Zealand
| | - M Krauss
- Department of Radiology, University of Otago, Christchurch, New Zealand.,Department of Interventional Radiology, Christchurch Hospital, Christchurch, New Zealand
| | - F R Verdun
- Institut of Radiation Physics, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - J Damet
- CERN, European Organization for Nuclear Research, Geneva, Switzerland.,Institut of Radiation Physics, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.,Department of Radiology, University of Otago, Christchurch, New Zealand
| |
Collapse
|