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DAP to mSv converter - radiography

This tool calculates the effective dose (mSv) with respect to the DAP value (e.g. cGy.cm2) belonging to different types of radiograph. It does for instance, Gy.cm2 to mSv conversion. It is emphasized that the result is an estimation. The conversion factor relates to ICRP 103 and is obtained from: Radiation risks from medical x-ray examinations as a function of the age and sex of the patient, BF Wall et al., Report HPA-CRCE-028 (2011); www.hpa.org.uk

Note: use point in stead of comma as a decimal separator.

Input value
dose area product (DAP)

Conversion factor (mSv/Gy.cm2)





Result
Effective dose

mSv


The publication gives different types of radiograph and their conversion factors: Head AP, Head PA, Head Lat, Cervical spine AP, Cervical spine Lat, Shoulder AP, Shoulder (axial), Chest PA, Chest Lat, Thoracic spine AP, Thoracic spine LAT, Lumbar spine AP, Lumbar spine Lat, Lumbo spine Lat, Lumbo-sacral joint Lat, Apdomen AP, Pelvis AP, Single Hip AP, Both Hips AP, Femur AP, Femur Lat, Knee AP, Knee Lat, Foot (dorsi-plantar), Foot (oblique)

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DAP unit converter

With this converter, the dose area product (DAP) can be converted into corresponding values expressed by other units. Use other tool for DAP to effective dose (mSv) conversion. Note: use point in stead of comma as a decimal separator. Input value   from  mGy.cm2 cGy.cm2 dGy.cm2 Gy.cm2 uGy.m2 mGy.m2 Gy.m2 to  mGy.cm2 cGy.cm2 dGy.cm2 Gy.cm2 uGy.m2 mGy.m2 Gy.m2 Simple example with respect to unit conversions: When converting from Gy.cm2 to µGy.m2 the following reasoning can be followed: 1 Gy = 1,000,000 (1 million) µGy; 1 cm2 = 0.0001 m2; this means that 1 Gy.cm2 = 1,000,000*0.0001 µGy.m2 = 100 µGy.m2. Note that some conversions won't result in any change, for example: 1 cGy*cm2 = 1 µGy*m2. DAP values can be translated into effective dose levels by multiplication using specific conversion factors. For this purpose it is important that DAP value and conversion factor match in terms of their units. The above DAP calcula

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Dose area product (DAP)

Dose Area Product (DAP), is a multiplication of the dose and the area exposed, often expressed in Gy.cm2. Modern x-ray systems are fitted with a DAP meter, able to record accumulated DAP during an examination.

DLP unit converter

With this converter, the dose length product (DLP) can be converted into corresponding values expressed by other units. Note: use point in stead of comma as a decimal separator. Input value   from     mGy.cm cGy.cm dGy.cm Gy.cm uGy.m mGy.m cGy.m dGy.m Gy.m to     mGy.cm cGy.cm dGy.cm Gy.cm uGy.m mGy.m cGy.m dGy.m Gy.m

Effective dose calculator - CTA-chest

Note 1: use point in stead of comma as a decimal separator. Note 2: currently only for CTA-chest and a rough estimate. Input value dose length product (DLP) mGy.cm cGy.cm dGy.cm Gy.cm Gy.m Result Effective dose mSv

Effective dose

Effective dose E is used as a measure of the radiation dose for expressing relative risk to humans. The exposures related to different types of medical x-ray examinations can be compared using the quantity effective dose. Why effective dose? The effective dose E, often expressed in millisievert (mSv), is generally used as a measure of radiation dose of patients and personnel in medical diagnostics . Unless indicated otherwise, 'dose' often refers to effective dose. Using  the quantity effective dose, the exposures for different types of medical x-ray examinations can be compared. The effective dose is not a measurable quantity, but is calculated from the physically absorbed dose (with Gray (Gy) as a unit) in the exposed tissues/organs. The point is that different tissues/organs are not equally sensitive to the possible adverse effects of radiation, such as cancer induction and mutations. For this reason, the different tissues/organs have been assigned tissue weighting fa

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