Chest radiography doses with film screen: is further reduction possible?

Nneoyi Egbe; Brian Heaton; Peter F Sharp

Chest radiography doses with film screen: is further reduction possible?

Nneoyi Egbe, Brian Heaton, Peter F Sharp

Medical Sciences

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Abstract

In order to establish the possibility and extent of further dose reduction in film screen chest radiography, gelatine based test objects were used in a simple chest phantom to obtain images at the current chest dose (Dref) and at percent dose reduction of 41, 65 and 77, respectively. Images studied by human observers to assess clarity and detectability of lesions (obtained from the perceptibility scores and number of lesions seen, respectively), showed that doses below 0.1 mGy (about 40% reduction Dref), but not exceeding 0.06 mGy (65% reduction from Dref), may be achieved in chest radiography.

Original language	English
Pages (from-to)	28-31
Number of pages	4
Journal	The South African Radiographer
Volume	48
Issue number	2
Publication status	Published - Nov 2010

Keywords

kilovoltage
optical density
scattered radiation

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Chest radiography doses
his work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 2.5 South Africa License http://creativecommons.org/licenses/by-nc-nd/2.5/za/
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http://www.sar.org.za/index.php/sar/article/view/166

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title = "Chest radiography doses with film screen: is further reduction possible? ",

abstract = "In order to establish the possibility and extent of further dose reduction in film screen chest radiography, gelatine based test objects were used in a simple chest phantom to obtain images at the current chest dose (Dref) and at percent dose reduction of 41, 65 and 77, respectively. Images studied by human observers to assess clarity and detectability of lesions (obtained from the perceptibility scores and number of lesions seen, respectively), showed that doses below 0.1 mGy (about 40% reduction Dref), but not exceeding 0.06 mGy (65% reduction from Dref), may be achieved in chest radiography.",

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author = "Nneoyi Egbe and Brian Heaton and Sharp, {Peter F}",

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AU - Egbe, Nneoyi

AU - Heaton, Brian

AU - Sharp, Peter F

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N2 - In order to establish the possibility and extent of further dose reduction in film screen chest radiography, gelatine based test objects were used in a simple chest phantom to obtain images at the current chest dose (Dref) and at percent dose reduction of 41, 65 and 77, respectively. Images studied by human observers to assess clarity and detectability of lesions (obtained from the perceptibility scores and number of lesions seen, respectively), showed that doses below 0.1 mGy (about 40% reduction Dref), but not exceeding 0.06 mGy (65% reduction from Dref), may be achieved in chest radiography.

AB - In order to establish the possibility and extent of further dose reduction in film screen chest radiography, gelatine based test objects were used in a simple chest phantom to obtain images at the current chest dose (Dref) and at percent dose reduction of 41, 65 and 77, respectively. Images studied by human observers to assess clarity and detectability of lesions (obtained from the perceptibility scores and number of lesions seen, respectively), showed that doses below 0.1 mGy (about 40% reduction Dref), but not exceeding 0.06 mGy (65% reduction from Dref), may be achieved in chest radiography.

KW - kilovoltage

KW - optical density

KW - scattered radiation

M3 - Article

VL - 48

SP - 28

EP - 31

JO - The South African Radiographer

JF - The South African Radiographer

IS - 2

ER -

Chest radiography doses with film screen: is further reduction possible?

Abstract

Keywords

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