Radiation quantities and units—understanding the sievert

Allisy-Roberts, P J

doi:10.1088/0952-4746/25/1/008

Cited by 11 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a brief synopsis, the standard value for radiation dose estimate (and often reported in medical journals) collected is the sievert (Sv) or millisievert (mSv). Other reports may describe radiation exposure units as gray (Gy), however both Sv and Gy are expressed in Joule/Kilogram and often utilized when discussing radiation and exposuresall leading to confusion, [14] as they are different. At a very basic level, the General Conference of Weights and Measures has decided that Gy be used for the absorbed dose (commonly utilized for radiotherapy dosing) and Sv be used for the dose equivalent (commonly used in radiation protection).…”

Section: Radiation Dose Estimatesmentioning

confidence: 99%

See 1 more Smart Citation

Cumulative radiation dose incurred during the management of complex pleural space infection

et al. 2021

View full text Add to dashboard Cite

Background Complex pleural space infections are commonly managed with antibiotics, pleural drainage, intrapleural fibrinolytic therapy, and surgery. These strategies often utilize radiographic imaging during management, however little data is available on cumulative radiation exposure received during inpatient management. We aimed to identify the type and quantity of radiographic studies along with the resultant radiation exposure during the management of complex pleural space infections. Methods Retrospective review of community network healthcare system from January 2015 to July 2018. Patients were identified through billing databases as receiving intrapleural fibrinolytic therapy and/or surgical intervention. Patient demographics, clinical outcomes, and inpatient radiographic imaging was collected to calculate cumulative effective dose. Results A total of 566 patients were identified with 7275 total radiographic studies performed and a median cumulative effective dose of 16.9 (IQR 9.9–26.3) mSv. Multivariable linear regression analysis revealed computed tomography use was associated with increased cumulative dose, whereas increased age was associated with lower cumulative dose. Over 74% of patients received more than 10 mSv, with 7.4% receiving more than 40 mSv. Conclusions The number of radiographic studies and overall cumulative effective dose in patients hospitalized for complex pleural space infection was high with the median cumulative effective dose > 5 times normal yearly exposure. Ionizing radiation and modern radiology techniques have revolutionized medical care, but are likely not without risk. Additional study is warranted to identify the frequency and imaging type needed during complex pleural space infection management, attempting to keep ionizing radiation exposure as low as reasonably possible.

show abstract

Section: Radiation Dose Estimatesmentioning

confidence: 99%

“…The exposure of radiation to human tissue and its effects (cancer, etc.) depends on the magnitude of the dose equivalent/estimate [14], and hence use of Sv and mSv in many human radiation exposure papers. References of the dose estimates for each type of imaging study was obtained from previously published references [11,15].…”

Section: Radiation Dose Estimatesmentioning

confidence: 99%

Cumulative radiation dose incurred during the management of complex pleural space infection

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Each of these factors, derived experimentally at the Hemmet and elsewhere, is regularly integrated into the weighing factor (w)-the human factor. In 1979 the Sievert was internationally recognized as the "equivalent and efficient dose" of radiation absorbed by humans: Svϭ1J/ kg.w (17).…”

Section: Rolf Sievert Of the Karolinskamentioning

confidence: 99%

Fukushima Daiichi and Icarus: The Human Factor in a Meltdown (Sv= 1J/kg.w)

Weissmann¹

2011

FASEB j.

View full text Add to dashboard Cite

“…Note that the SI unit for both the gray and sievert is J kg −1 . As the Sv is also ascribed to the specific ICRP protection quantities, equivalent dose and effective dose, when a radiation dose is expressed in Sv particular care must be taken to indicate clearly the actual dosimetric quantity under consideration, as discussed below and previously [4].…”

Section: Quantities and Unitsmentioning

confidence: 99%