Oksana Lesyuk1, Patrick Emmanuel Sousa2, Sónia Isabel do Espirito Santo Rodrigues3, António Fernando Abrantes4, Rui Pedro Pereira de Almeida5, João Pedro Pinheiro6, Kevin Barros Azevedo7, Luís Pedro Vieira Ribeiro7. 1. Radiology Technician, Professor in the Department of Medical Imaging and Radiotherapy of the Escola Superior de Saúde da Universidade do Algarve (ESSUAlg), Faro, Portugal. 2. PhD, Physics Engineer, Professor in the Department of Medical Imaging and Radiotherapy of the Escola Superior de Saúde da Universidade do Algarve (ESSUAlg), Faro, Portugal. 3. MSc, Radiology Technician, Professor in the Department of Medical Imaging and Radiotherapy of the Escola Superior de Saúde da Universidade do Algarve (ESSUAlg), Faro, Portugal. 4. PhD, Professor and Head of the Department of Medical Imaging and Radiotherapy of the Escola Superior de Saúde da Universidade do Algarve (ESSUAlg), Faro, Portugal. 5. MsC, Radiology Technician, Graduate Student at the Universidad de Murcia, Murcia, Spain, Professor in the Department of Medical Imaging and Radiotherapy of the Escola Superior de Saúde da Universidade do Algarve (ESSUAlg), Faro, Portugal. 6. MSc, Doctoral Student at the Universidade de Coimbra, Coimbra, Portugal, Professor in the Department of Medical Imaging and Radiotherapy of the Escola Superior de Saúde da Universidade do Algarve (ESSUAlg), Faro, Portugal. 7. PhD, Professor in the Department of Medical Imaging and Radiotherapy of the Escola Superior de Saúde da Universidade do Algarve (ESSUAlg), Faro, Portugal.
Abstract
OBJECTIVE: To measure the scattered radiation dose at different positions simulating hip surgery. MATERIALS AND METHODS: We simulated fluoroscopy-assisted hip surgery in order to study the distribution of scattered radiation in the operating room. To simulate the patient, we used a anthropomorphic whole-body phantom, and we used an X-ray-specific detector to quantify the radiation. Radiographs were obtained with a mobile C-arm X-ray system in continuous scan mode, with the tube at 0º (configuration 1) or 90º (configuration 2). The operating parameters employed (voltage, current, and exposure time) were determined by a statistical analysis based on the observation of orthopedic surgical procedures involving the hip. RESULTS: For all measurements, higher exposures were observed in configuration 2. In the measurements obtained as a function of height, the maximum dose rates observed were 1.167 (± 0.023) µSv/s and 2.278 (± 0.023) µSv/s in configurations 1 and 2, respectively, corresponding to the chest level of health care professionals within the operating room. Proximal to the patient, the maximum values were recorded in the position occupied by the surgeon. CONCLUSION: We can conclude that, in the scenario under study, health care professionals workers are exposed to low levels of radiation, and that those levels can be reduced through the use of personal protective equipment.
OBJECTIVE: To measure the scattered radiation dose at different positions simulating hip surgery. MATERIALS AND METHODS: We simulated fluoroscopy-assisted hip surgery in order to study the distribution of scattered radiation in the operating room. To simulate the patient, we used a anthropomorphic whole-body phantom, and we used an X-ray-specific detector to quantify the radiation. Radiographs were obtained with a mobile C-arm X-ray system in continuous scan mode, with the tube at 0º (configuration 1) or 90º (configuration 2). The operating parameters employed (voltage, current, and exposure time) were determined by a statistical analysis based on the observation of orthopedic surgical procedures involving the hip. RESULTS: For all measurements, higher exposures were observed in configuration 2. In the measurements obtained as a function of height, the maximum dose rates observed were 1.167 (± 0.023) µSv/s and 2.278 (± 0.023) µSv/s in configurations 1 and 2, respectively, corresponding to the chest level of health care professionals within the operating room. Proximal to the patient, the maximum values were recorded in the position occupied by the surgeon. CONCLUSION: We can conclude that, in the scenario under study, health care professionals workers are exposed to low levels of radiation, and that those levels can be reduced through the use of personal protective equipment.
Authors: Priscila do Carmo Santana; Paulo Marcio Campos de Oliveira; Marcelo Mamede; Mariana de Castro Silveira; Polyanna Aguiar; Raphaela Vila Real; Teógenes Augusto da Silva Journal: Radiol Bras Date: 2015 Jan-Feb