Τίτλος:
Medical personnel and patient dosimetry during coronary angiography and intervention
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Percutaneous coronary interventions are associated with increased radiation exposure compared to most radiological examinations. This prospective study aimed at (1) measuring entrance doses for all in-room personnel, (2) performing an assessment of patient effective dose and intracoronary doses, (3) investigating the contribution of each projection to kerma-area product (KAP) and irradiation time, (4) comparing results with established DRL values in this clinical setting and (5) estimating the risk for fatal cancer to patients and operators. Measurements were performed during 40 consecutive procedures of coronary angiography (CA), half of which were followed by ad hoc coronary angioplasty (PTCA). KAP measurements were used for patients and thermoluminescent dosimetry for the in-room personnel. The mean KAP value per procedure for CA was 29 ± 9 Gy cm2. Thirty four per cent of KAP was due to fluoroscopy, whereas the remainder (66%) was due to digital cine. Accordingly, the mean KAP value per PTCA procedure was 75 ± 30 Gy cm2, and contribution of fluoroscopy is 57%. Effective dose per year was estimated to be 0.04-0.05 mSv y-1 for the primary operator, and 0.03-0.04 mSv y-1 for those assisting. Corresponding measurements for radiographer and nurse were below detectable level, implying minimal radiation hazards for them. Regarding radiation exposure, coronary intervention is considered a quite safe procedure for both patients and personnel in laboratories with modern equipment and experienced operators as long as standard safety precautions are considered. Exposure optimization though should be constantly sought through continuous review of procedures.
Συγγραφείς:
Efstathopoulos, E.P.
Makrygiannis, S.S.
Kottou, S.
Karvouni, E.
Giazitzoglou, E.
Korovesis, S.
Tzanalaridou, E.
Raptou, P.D.
Katritsis, D.G.
Περιοδικό:
Physics in Medicine and Biology
Λέξεις-κλειδιά:
Angiography; Patient treatment; Radiation hazards; Radiology; Thermoluminescence, Coronary angiography (CA), Dosimetry, angiocardiography; article; cancer risk; controlled study; dosimetry; fluoroscopy; human; interventional radiology; medical personnel; nurse; operator; patient; priority journal; prospective study; radiation dose; radiation equipment; radiation exposure; radiation hazard; thermoluminescence dosimetry; time; transluminal coronary angioplasty, Body Burden; Coronary Angiography; Coronary Vessels; Environmental Exposure; Female; Greece; Health Personnel; Humans; Male; Middle Aged; Models, Biological; Neoplasms, Radiation-Induced; Occupational Exposure; Radiation Dosage; Radiation Protection; Radiology Department, Hospital; Radiometry; Risk Assessment
DOI:
10.1088/0031-9155/48/18/307
