Pediatric radiology · 2003
Scatter and transmission doses from several pediatric X-ray examinations in a nursery.
СтатьяНазвание и аннотация: Перевод в очереди
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Burrage John W, Rampant Peter L, Beeson Brendan P
Аннотация
BACKGROUND: While several studies have investigated the dose from scattered radiation from X-ray procedures in a pediatric nursery, they examined scatter from chest procedures only, or the types of examination were not specified.
OBJECTIVE: The aim of this study was to collect scatter and transmission data from several types of X-ray examinations.
MATERIALS AND METHODS: Using a "newborn" anthropomorphic phantom and an ion chamber, a series of scatter and transmission dose measurements were performed using typical exposure factors for chest, chest and abdomen, skull, skeletal long bone and spine procedures. The phantom was inside a crib for all exposures.
RESULTS: The maximum scatter dose measured at 1 m from the field center was about 0.05 micro Gy per exposure for lateral skulls. Transmission doses for lateral exams were around 0.1 micro Gy per exposure at 1 m from the isocenter.
CONCLUSIONS: The study demonstrated that scatter dose to other patients in a neonatal unit is not significant, assuming the distance between adjacent cribs is in the order of 1 m. Transmission doses are also low provided the beam is fully intercepted by the cassette. For an average workload the dose received by imaging technologists would be small.
OBJECTIVE: The aim of this study was to collect scatter and transmission data from several types of X-ray examinations.
MATERIALS AND METHODS: Using a "newborn" anthropomorphic phantom and an ion chamber, a series of scatter and transmission dose measurements were performed using typical exposure factors for chest, chest and abdomen, skull, skeletal long bone and spine procedures. The phantom was inside a crib for all exposures.
RESULTS: The maximum scatter dose measured at 1 m from the field center was about 0.05 micro Gy per exposure for lateral skulls. Transmission doses for lateral exams were around 0.1 micro Gy per exposure at 1 m from the isocenter.
CONCLUSIONS: The study demonstrated that scatter dose to other patients in a neonatal unit is not significant, assuming the distance between adjacent cribs is in the order of 1 m. Transmission doses are also low provided the beam is fully intercepted by the cassette. For an average workload the dose received by imaging technologists would be small.