RESUMO
The objective of this study was to directly measure the radiation exposure to the orthopaedic surgeon and to measure dose points to the surgeon's fingers, thyroid gland, and forehead during intraoperative fluoroscopy in periacetabular osteotomy (PAO). In a series of 23 consecutive periacetabular osteotomy procedures, exposure monitoring was carried out using thermo luminescent dosimeters. The effective dose received by the operating surgeon was 0.008 mSv per operation which adds up to a yearly dose of 0.64 mSv from PAO. The median point equivalent dose (mSv) exposure under PAO was 0.009 for the forehead and thyroid gland, 0.045 for the right index finger, and 0.039 for the left index finger. The effective estimated yearly dose received by the operating surgeon was very low. Wearing a lead collar reduces radiation exposure to the thyroid gland while the lead gloves did not protect the surgeon's fingers.
Assuntos
Acetábulo/cirurgia , Período Intraoperatório , Corpo Clínico , Exposição Ocupacional , Osteotomia/métodos , Acetábulo/diagnóstico por imagem , Dedos/efeitos da radiação , Fluoroscopia/efeitos adversos , Fluoroscopia/métodos , Testa/efeitos da radiação , Humanos , Osteotomia/efeitos adversos , Estudos Prospectivos , Radiometria , Glândula Tireoide/efeitos da radiaçãoRESUMO
A general overview is given on the use of extremity dosemeters, their calibration, the units and phantoms to be used. One of the major applications of extremity dosemeters is to monitor the personnel in a hospital environment. In nuclear medicine, brachytherapy and interventional radiology (IR) skin doses to hands and legs can be substantial. Here, we report on two studies that are presently being undertaken in Belgium. The first one tries to map the dose distribution on the hands, in function of the manipulation in nuclear medicine. Some preliminary results are also given from a nationwide survey study for patient and personnel doses during IR and cardiology. The radiologists' hands, legs and forehead are monitored during a whole range of procedures in different hospitals.
Assuntos
Exposição Ocupacional , Monitoramento de Radiação/métodos , Radiometria/métodos , Bélgica , Braquiterapia/métodos , Calibragem , Testa/efeitos da radiação , Mãos/efeitos da radiação , Hospitais , Humanos , Perna (Membro)/efeitos da radiação , Imagens de Fantasmas , Equipamentos de Proteção , Monitoramento de Radiação/instrumentação , Proteção Radiológica/métodos , Radiometria/instrumentação , Radioterapia/métodosAssuntos
Blefaroplastia , Radiodermite/cirurgia , Radioterapia/efeitos adversos , Ritidoplastia , Feminino , Seguimentos , Testa/efeitos da radiação , Testa/cirurgia , Neoplasias de Cabeça e Pescoço/radioterapia , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Radioterapia Adjuvante , Envelhecimento da Pele/efeitos da radiação , Cicatrização/efeitos da radiaçãoRESUMO
A radiation protection survey has been carried out using TLD to assess the radiation exposure to staff during radium insertions for cancer of the cervix. The staff monitored were the radiotherapist, anaesthetist and operating theatre assistant. The radiotherapist, who received the highest exposure, had on the average 160 muGy (16 mrad) whole body (chest) dose while the finger tip doses were around 600 muGy (60 mrad) from the insertion of 60 mg radium. TLD was found to be convenient and sensitive for this purpose, including estimation of finger-tip doses. It helps to maintain the confidence of the staff that their doses are "as low as readily achievable" and also offers a means of checking improvements in practice where found necessary.