Nation-Wide Survey on Radiation Doses in Diagnostic and Interventional Radiology in Switzerland in 1998

Aroua, A.; Burnand, Bernard; Decka, Ina; Jp, Vader; Jf, Valley

doi:10.1097/00004032-200207000-00005

Cited by 40 publications

(26 citation statements)

References 17 publications

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“…The annual per caput effective dose reported in Table 5 is consistent with that assessed by UNSCEAR for level I countries [1], and with data reported in literature for France [5], the UK [14], Germany [15], the Netherlands [16] and Switzerland [17]. The mean effective dose per inhabitant increased from 0.68 mSv in 2002 to 1.19 mSv in 2009 (+75%).…”

Section: Discussionsupporting

confidence: 86%

Effective dose delivered by conventional radiology to Aosta Valley population between 2002 and 2009

Zenone¹,

Aimonetto²,

Catuzzo³

et al. 2012

BJR

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Objective: Medical diagnostic procedures can be considered the main man-made source of ionising radiation exposure for the population. Conventional radiography still represents the largest contribution to examination frequency. The present work evaluates procedure frequency and effective dose from the majority of conventional radiology examinations performed at the Radiological Department of Aosta Hospital from 2002 to 2009. Method: Effective dose to the patient was evaluated by means of the software PCXMC. Data provided by the radiological information system allowed us to obtain collective effective and per caput dose.

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Section: Discussionsupporting

confidence: 86%

Effective dose delivered by conventional radiology to Aosta Valley population between 2002 and 2009

Zenone¹,

Aimonetto²,

Catuzzo³

et al. 2012

BJR

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show abstract

“…The results obtained in this study are quite helpful for a ®ner analysis of the results of the 1998 nationwide survey on the exposure of the Swiss population by diagnostic and interventional radiology (7) . In fact, the present work suggests that not all the Swiss population is concerned by the 5.4 M medical X-ray examinations registered in 1998, but only about one-quarter which leads to an average of 2.87 medical X-ray examinations per caput per annum within the exposed sub-population, instead of the 0.76 ®gure based on the total population.…”

Section: Resultsmentioning

confidence: 81%

“…nationwide survey (7) . The difference between the two ®gures may be explained by the lack of information in this pilot study on patients above 74 of age, usually performing more examinations than the average.…”

Section: Methodsmentioning

confidence: 99%

“…The most recent one was carried out in 1998 (7,8) and indicated that 5.4 M medical X-ray examinations are performed annually in Switzerland, leading to an annual collective dose of 7000 Sv for a population of 7,096,894. In order to establish how these two ®gures are distributed among the Swiss population, the report recommended the launching of a patient-oriented survey.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Radiation exposure by radio-diagnostics in Switzerland: a pilot patient-oriented survey

Aroua

Valley²,

Vader³

2004

Radiation Protection Dosimetry

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A patient-oriented survey was conducted in Switzerland with the aim to establishing the distribution of medical X-ray examinations among the population. A sample of 1235 people aged between 15 and 74 y (589 males and 637 females) was contacted. The participants were asked to give the number of medical X-ray examinations performed during the previous 12 months. Three-fourths of the sample did not undergo any medical X-ray examination during a 12 month-period, and 10% of the population underwent more than 1 medical X-ray examination in a year. These results were independent of the geographic region. The age distributions of the participants who did not undergo any medical X-ray examination and those who underwent one medical X-ray examination were similar. On the other hand, the age distribution of the participants who underwent more than one medical X-ray examination was characterised by a higher contribution from the elderly.

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“…Substantial increases in computed tomography (CT) usage and population dose have been reported in the USA, UK, Europe, and Australia over the past two decades [1][2][3][4][5] resulting in governments, radiation regulatory bodies, and radiology associations and professionals highlighting the need for optimized CT protocols [6][7][8]. Establishing such protocols often involves the use of phantoms due to the difficulty of employing patients when comparing different technical or procedural factors involving ionizing radiation [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Computed Tomography Protocols: Limitations of a Methodology Employing a Phantom with Location-Known Opacities

et al. 2013

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This study aimed to determine if phantom-based methodologies for optimization of hepatic lesion detection with computed tomography (CT) require randomization of lesion placement and inclusion of normal images. A phantom containing fixed opacities of varying size (diameters, 2.4, 4.8, and 9.5 mm) was scanned at various exposure and slice thickness settings. Two image sets were compared: All images in the first image set contained opacities with known location; the second image set contained images with opacities in random locations. Following Institutional Review Board approval, nine experienced observers scored opacity visualization using a 4-point confidence scale. Comparisons between image sets were performed using Spearman, Kappa, and Wilcoxon techniques. Observer scores demonstrated strong correlation between both approaches when all opacity sizes were combined (r=0.92, p<0.0001), for the 9.5 mm opacity (r=0.96, p<0.0001) and for the 2.4 mm opacity (r=0.64, p<0.05). There was no significant correlation for the 4.8 mm opacity. A significantly higher sensitivity score for the known compared with the unknown location was found for the 9.5 mm opacity and 4.8 mm opacity for a single slice thickness and exposure condition (p<0.05). Phantom-based optimization of CT hepatic examinations requires randomized lesion location when investigating challenging conditions; however, a standard phantom with fixed lesion location is suitable for the optimization of routine liver protocols. The development of more sophisticated phantoms or methods than those currently available is indicated for the optimization of CT protocols for diagnostic tasks involving the detection of subtle change.

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Nation-Wide Survey on Radiation Doses in Diagnostic and Interventional Radiology in Switzerland in 1998

Cited by 40 publications

References 17 publications

Effective dose delivered by conventional radiology to Aosta Valley population between 2002 and 2009

Effective dose delivered by conventional radiology to Aosta Valley population between 2002 and 2009

Radiation exposure by radio-diagnostics in Switzerland: a pilot patient-oriented survey

Optimization of Computed Tomography Protocols: Limitations of a Methodology Employing a Phantom with Location-Known Opacities

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