A study of the correlation between dose area product and effective dose in vascular radiology

Kristien Smans; Lara Struelens; Marie-Thérèse Hoornaert; Frederic Bleeser; Nico Buls; Danielle Berus; Peter Clerinx; Françoise Malchair; Filip Vanhavere; Hilde Bosmans

doi:10.1093/rpd/ncn050

A study of the correlation between dose area product and effective dose in vascular radiology

Kristien Smans, Lara Struelens, Marie-Thérèse Hoornaert, Frederic Bleeser, Nico Buls, Danielle Berus, Peter Clerinx, Françoise Malchair, Filip Vanhavere, Hilde Bosmans

Research output › peer-review

Abstract

The purpose of the multi-centre study was to assess dose area product (DAP) and effective dose of patients undergoing angiography of the lower limbs in Belgium and to investigate the correlation between DAP and effective dose. DAP values were measured in 12 centres and compared with the national diagnostic reference levels (DRLs). The effective dose (E) was estimated by multiplying the DAP with case-specific conversion coefficients (CCs) that were calculated with Monte Carlo software MCNP5. As a model for the patient, a mathematical hermaphrodite phantom was used. Calculations showed that tube configurations and extra Cu filtration have a large influence on these CCs. Due to the use of Cu filtration, effective dose can be twice as high for comparable DAP values. Also the use of an over-couch tube configuration is a disadvantage when compared with the under-couch tube configuration. For centres working under-couch without the use of extra Cu-filtration, the DAP values correlate very well with effective dose (Spearman's rank correlation ; = 0.97). For these conditions, general CCs between DAP and E were calculated. They were 0.083 mSv Gy–1 cm–2 (ICRP 60) and 0.065 mSv Gy–1 cm–2 (ICRP 103).

Original language	English
Pages (from-to)	300-308
Journal	Radiation protection dosimetry
Volume	130
Issue number	3
DOIs	https://doi.org/10.1093/rpd/ncn050
State	Published - 29 Feb 2008

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title = "A study of the correlation between dose area product and effective dose in vascular radiology",

abstract = "The purpose of the multi-centre study was to assess dose area product (DAP) and effective dose of patients undergoing angiography of the lower limbs in Belgium and to investigate the correlation between DAP and effective dose. DAP values were measured in 12 centres and compared with the national diagnostic reference levels (DRLs). The effective dose (E) was estimated by multiplying the DAP with case-specific conversion coefficients (CCs) that were calculated with Monte Carlo software MCNP5. As a model for the patient, a mathematical hermaphrodite phantom was used. Calculations showed that tube configurations and extra Cu filtration have a large influence on these CCs. Due to the use of Cu filtration, effective dose can be twice as high for comparable DAP values. Also the use of an over-couch tube configuration is a disadvantage when compared with the under-couch tube configuration. For centres working under-couch without the use of extra Cu-filtration, the DAP values correlate very well with effective dose (Spearman's rank correlation ; = 0.97). For these conditions, general CCs between DAP and E were calculated. They were 0.083 mSv Gy–1 cm–2 (ICRP 60) and 0.065 mSv Gy–1 cm–2 (ICRP 103).",

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T1 - A study of the correlation between dose area product and effective dose in vascular radiology

AU - Smans, Kristien

AU - Struelens, Lara

AU - Hoornaert, Marie-Thérèse

AU - Bleeser, Frederic

AU - Buls, Nico

AU - Berus, Danielle

AU - Clerinx, Peter

AU - Malchair, Françoise

AU - Vanhavere, Filip

AU - Bosmans, Hilde

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N2 - The purpose of the multi-centre study was to assess dose area product (DAP) and effective dose of patients undergoing angiography of the lower limbs in Belgium and to investigate the correlation between DAP and effective dose. DAP values were measured in 12 centres and compared with the national diagnostic reference levels (DRLs). The effective dose (E) was estimated by multiplying the DAP with case-specific conversion coefficients (CCs) that were calculated with Monte Carlo software MCNP5. As a model for the patient, a mathematical hermaphrodite phantom was used. Calculations showed that tube configurations and extra Cu filtration have a large influence on these CCs. Due to the use of Cu filtration, effective dose can be twice as high for comparable DAP values. Also the use of an over-couch tube configuration is a disadvantage when compared with the under-couch tube configuration. For centres working under-couch without the use of extra Cu-filtration, the DAP values correlate very well with effective dose (Spearman's rank correlation ; = 0.97). For these conditions, general CCs between DAP and E were calculated. They were 0.083 mSv Gy–1 cm–2 (ICRP 60) and 0.065 mSv Gy–1 cm–2 (ICRP 103).

AB - The purpose of the multi-centre study was to assess dose area product (DAP) and effective dose of patients undergoing angiography of the lower limbs in Belgium and to investigate the correlation between DAP and effective dose. DAP values were measured in 12 centres and compared with the national diagnostic reference levels (DRLs). The effective dose (E) was estimated by multiplying the DAP with case-specific conversion coefficients (CCs) that were calculated with Monte Carlo software MCNP5. As a model for the patient, a mathematical hermaphrodite phantom was used. Calculations showed that tube configurations and extra Cu filtration have a large influence on these CCs. Due to the use of Cu filtration, effective dose can be twice as high for comparable DAP values. Also the use of an over-couch tube configuration is a disadvantage when compared with the under-couch tube configuration. For centres working under-couch without the use of extra Cu-filtration, the DAP values correlate very well with effective dose (Spearman's rank correlation ; = 0.97). For these conditions, general CCs between DAP and E were calculated. They were 0.083 mSv Gy–1 cm–2 (ICRP 60) and 0.065 mSv Gy–1 cm–2 (ICRP 103).

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