Ambient radiation levels in positron emission tomography/computed tomography (PET/CT) imaging center

Santana, Priscila do Carmo; Oliveira, P. M. C. de; Mamede, Marcelo; Silveira, Mariana de Castro; Aguiar, Polyanna; Real, Raphaela Vila; Silva, Teógenes Augusto da

doi:10.1590/0100-3984.2013.1821

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…Fluoroscopy is frequently used by medical professionals. Therefore, it is necessary to raise awareness in relation to the risks of ionizing radiation, as well as to encourage the use of personal protective equipment and greater attention to radiation protection recommendations in order to reduce the doses received during medical procedures ( 1 ) .…”

Section: Discussionmentioning

confidence: 99%

“…The use of ionizing radiation for diagnostic and treatment purposes has increased due to the development of new equipment and easier access to radiologic exams ( 1 ) . Medical activities such as interventional radiology involve exposing patients and health care professionals to radiation, and radiation protection is therefore necessary in order to reduce the levels of that exposure.…”

Section: Introductionmentioning

confidence: 99%

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Study of scattered radiation during fluoroscopy in hip surgery

et al. 2016

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ObjectiveTo measure the scattered radiation dose at different positions simulating hip surgery.Materials and MethodsWe 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.ResultsFor 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.ConclusionWe 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.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of scattered radiation during fluoroscopy in hip surgery

et al. 2016

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“…Where: H(mSv/year) is the annual radiation level at workplace, DTLD is the Dose received by TLD (mSv/month), Factor 12 is for months/year, Factor 8/24 is for working hours per day/monitoring hours per day, and, T is the Area Occupancy factor, based on the mean stay time of a worker in that location (details given in table V) [14].…”

Section: B Thermoluminescent Dosimeter and Reader Systemmentioning

confidence: 99%

A Radiation Levels Measurement at Workplace of Cyclotron-PET/CT Facilities (in Karachi) using TLD Dosimeters

Perveen,

Mohsin,

Nadeem

et al. 2023

SSURJET

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Cyclotron is the most widely used proton particle accelerator for production of short lived radionuclides particularly F-18 for diagnostic purpose in oncology imaging. Currently, only Fluorine [F-18] is being produced in Pakistan. F-18 is tagged with glucose analogue and converted into [18F] FDG (Fluorodeoxyglucose) by synthesis process. [18F] FDG emits positron and, via annihilation process, produces two gamma photons of 511keV energy, which is of great concern for occupational safety. Therefore, a study was carried out to assess the dose incurred by radiation workers working in controlled and supervised areas of cyclotron facility. In this study, the ten (10) calibrated Thermoluminescene dosimeters (TLD-100) were annealed and placed in different locations of four Cyclotron-PET/CT facilities for determination of dose in work area. In the selected cyclotron facilities, one out of four was unshielded cyclotron and other three were self-shielded. Ten (10) TLDs were placed in preselected controlled and supervised areas of facilities for the duration of 30 days. After four weeks of exposure, TLDs were removed and assessed on TLD reader for dose evaluation. The evaluated results of radiation levels from TLDs are in good agreement with the criteria for classification of areas as defined in Regulations on Radiation Protection (PAK/904). The measured doses of work area are well below the defined regulatory dose limits for controlled area (>6mSv/yr) as well as supervised area (>1mSv/yr) except in case of unshielded cyclotron vault. It is concluded that the facilities have implemented the requirement 27 of PNRA Regulations on Radiation Protection (PAK/904) and also have established strong radiation safety measures for minimization of occupational exposure.

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“…Os raios X são ondas eletromagnéticas de alta frequência, que têm grande poder de penetração. Podem ionizar átomos e moléculas podendo ocasionar alterações e possíveis mutações que são potencialmente capazes de causar neoplasias e principalmente morte celular [5].O uso de radiação ionizante para fins diagnósticos e terapêuticos tem aumentado devido ao desenvolvimento dos equipamentos e facilidades no acesso ao exame radiológico [6].…”

Section: Introductionunclassified

Análise da aplicabilidade do arco em C no centro cirúrgico em conjunto com a proteção radiológica: Uma revisão integrativa da literatura

Mesquita¹,

Silva²

2023

Braz. J. Hea. Rev.

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INTRODUÇÃO: Um dos tratamentos cirúrgicos mais antigos remotam ao Peru a cerca de 6000 a.C com uma técnica conhecida como craniotomia ou trepanação. Sem dúvidas, a maior evolução que acabou beneficiando a cirurgia foi a descoberta dos Raios X por Wilhelm Conrad Roentgen, em 1895. Portanto unindo a descoberta dos Raios-X e a ascenção da Cirurgia, houve o desenvolvimento de um equipamento denomindo Arco Cirúrgico, projetado para ser altamente manuseável tornando-se indispensável em ambientes hospitalares OBJETIVO: Justifica-se a elaboração de um trabalho científico descritivo direcionado aos profissionais, sejam eles técnicos ou tecnólogos em radiologia, profissionais já formados e ainda outros que desejam ampliar seus conhecimentos neste segmento de como é o funcionamento do Arco Cirúrgico (C-Arm) assim como as diretrizes de proteção radiológica para que o manuseio seja realizado de maneira adequada. MÉTODOS: Este estudo trata-se de uma revisão integrativa da literatura, que utilizou os seguintes bancos de dados: SCIELO, PUBMED CENTRAL, RADIOGRAPHICS, GOOGLE SCHOLAR. RESULTADOS: Essa tecnologia deve ser utilizada com cautela, pois o seu uso recorrente pode trazer efeitos negativos não apenas para o paciente, mas como para a equipe cirúrgicas e operadores. Sendo assim, faz-se necessário o cumprimento das normas de conduta no que diz respeito a utilização de vestimentas específicas. CONCLUSÕES: O Arco em C torna-se indispensável em ambientes hospitalares por possibilitar a realização de cirurgias cada vez menos invasivas e mais rápidas e devido ao constante avanço da tecnologia, torna-se cada vez mais necessário que os profissionais acompanhem essa evolução, sempre priorizando as diretrizes da radioproteção.

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Ambient radiation levels in positron emission tomography/computed tomography (PET/CT) imaging center

Cited by 6 publications

References 4 publications

Study of scattered radiation during fluoroscopy in hip surgery

Study of scattered radiation during fluoroscopy in hip surgery

A Radiation Levels Measurement at Workplace of Cyclotron-PET/CT Facilities (in Karachi) using TLD Dosimeters

Análise da aplicabilidade do arco em C no centro cirúrgico em conjunto com a proteção radiológica: Uma revisão integrativa da literatura

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