TY  - JOUR
AU  - Vassileva, J.
AU  - Rehani, M.
AU  - Kostova-Lefterova, D.
AU  - Al-Naemi, H. M.
AU  - Al Suwaidi, J. S.
AU  - Aranđić, Danijela
AU  - Bashier, E. H. O.
AU  - Kodlulovich Renha, S.
AU  - El-Nachef, L.
AU  - Aguilar, J. G.
AU  - Gershan, Vesna
AU  - Gershkevitsh, E.
AU  - Gruppetta, E.
AU  - Hustuc, A.
AU  - Jauhari, A.
AU  - Kharita, Mohammad Hassan
AU  - Khelassi-Toutaoui, N.
AU  - Khosravi, H. R.
AU  - Khoury, H.
AU  - Kralik, I.
AU  - Mahere, S.
AU  - Mazuoliene, J.
AU  - Mora, P.
AU  - Muhogora, W.
AU  - Muthuvelu, P.
AU  - Nikodemova, D.
AU  - Novak, L.
AU  - Pallewatte, A.
AU  - Pekarovic, D.
AU  - Shaaban, M.
AU  - Shelly, E.
AU  - Stepanyan, K.
AU  - Thelsy, N.
AU  - Visrutaratna, P.
AU  - Zaman, A.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/668
AB  - The article reports from the largest international dose survey in paediatric computed tomography (CT) in 32 countries and proposes international diagnostic reference levels (DRLs) in terms of computed tomography dose index (CTDIvol) and dose length product (DLP). It also assesses whether mean or median values of individual facilities should be used. A total of 6115 individual patient data were recorded among four age groups: LT 1 y, GT 1-5 y, GT 5-10 y and GT 10-15 y. CTDIw, CTDIvol and DLP from the CT console were recorded in dedicated forms together with patient data and technical parameters. Statistical analysis was performed, and international DRLs were established at rounded 75th percentile values of distribution of median values from all CT facilities. The study presents evidence in favour of using median rather than mean of patient dose indices as the representative of typical local dose in a facility, and for establishing DRLs as third quartile of median values. International DRLs were established for paediatric CT examinations for routine head, chest and abdomen in the four age groups. DRLs for CTDIvol are similar to the reference values from other published reports, with some differences for chest and abdomen CT. Higher variations were observed between DLP values, based on a survey of whole multi-phase exams. It may be noted that other studies in literature were based on single phase only. DRLs reported in this article can be used in countries without sufficient medical physics support to identify non-optimised practice. Recommendations to improve the accuracy and importance of future surveys are provided.
T2  - Radiation Protection Dosimetry
T1  - A Study to Establish International Diagnostic Reference Levels for Paediatric Computed Tomography
VL  - 165
IS  - 1-4
SP  - 70
EP  - 80
DO  - 10.1093/rpd/ncv116
ER  - 

@article{
author = "Vassileva, J. and Rehani, M. and Kostova-Lefterova, D. and Al-Naemi, H. M. and Al Suwaidi, J. S. and Aranđić, Danijela and Bashier, E. H. O. and Kodlulovich Renha, S. and El-Nachef, L. and Aguilar, J. G. and Gershan, Vesna and Gershkevitsh, E. and Gruppetta, E. and Hustuc, A. and Jauhari, A. and Kharita, Mohammad Hassan and Khelassi-Toutaoui, N. and Khosravi, H. R. and Khoury, H. and Kralik, I. and Mahere, S. and Mazuoliene, J. and Mora, P. and Muhogora, W. and Muthuvelu, P. and Nikodemova, D. and Novak, L. and Pallewatte, A. and Pekarovic, D. and Shaaban, M. and Shelly, E. and Stepanyan, K. and Thelsy, N. and Visrutaratna, P. and Zaman, A.",
year = "2015",
abstract = "The article reports from the largest international dose survey in paediatric computed tomography (CT) in 32 countries and proposes international diagnostic reference levels (DRLs) in terms of computed tomography dose index (CTDIvol) and dose length product (DLP). It also assesses whether mean or median values of individual facilities should be used. A total of 6115 individual patient data were recorded among four age groups: LT 1 y, GT 1-5 y, GT 5-10 y and GT 10-15 y. CTDIw, CTDIvol and DLP from the CT console were recorded in dedicated forms together with patient data and technical parameters. Statistical analysis was performed, and international DRLs were established at rounded 75th percentile values of distribution of median values from all CT facilities. The study presents evidence in favour of using median rather than mean of patient dose indices as the representative of typical local dose in a facility, and for establishing DRLs as third quartile of median values. International DRLs were established for paediatric CT examinations for routine head, chest and abdomen in the four age groups. DRLs for CTDIvol are similar to the reference values from other published reports, with some differences for chest and abdomen CT. Higher variations were observed between DLP values, based on a survey of whole multi-phase exams. It may be noted that other studies in literature were based on single phase only. DRLs reported in this article can be used in countries without sufficient medical physics support to identify non-optimised practice. Recommendations to improve the accuracy and importance of future surveys are provided.",
journal = "Radiation Protection Dosimetry",
title = "A Study to Establish International Diagnostic Reference Levels for Paediatric Computed Tomography",
volume = "165",
number = "1-4",
pages = "70-80",
doi = "10.1093/rpd/ncv116"
}

Vassileva, J., Rehani, M., Kostova-Lefterova, D., Al-Naemi, H. M., Al Suwaidi, J. S., Aranđić, D., Bashier, E. H. O., Kodlulovich Renha, S., El-Nachef, L., Aguilar, J. G., Gershan, V., Gershkevitsh, E., Gruppetta, E., Hustuc, A., Jauhari, A., Kharita, M. H., Khelassi-Toutaoui, N., Khosravi, H. R., Khoury, H., Kralik, I., Mahere, S., Mazuoliene, J., Mora, P., Muhogora, W., Muthuvelu, P., Nikodemova, D., Novak, L., Pallewatte, A., Pekarovic, D., Shaaban, M., Shelly, E., Stepanyan, K., Thelsy, N., Visrutaratna, P.,& Zaman, A.. (2015). A Study to Establish International Diagnostic Reference Levels for Paediatric Computed Tomography. in Radiation Protection Dosimetry, 165(1-4), 70-80.
https://doi.org/10.1093/rpd/ncv116

Vassileva J, Rehani M, Kostova-Lefterova D, Al-Naemi HM, Al Suwaidi JS, Aranđić D, Bashier EHO, Kodlulovich Renha S, El-Nachef L, Aguilar JG, Gershan V, Gershkevitsh E, Gruppetta E, Hustuc A, Jauhari A, Kharita MH, Khelassi-Toutaoui N, Khosravi HR, Khoury H, Kralik I, Mahere S, Mazuoliene J, Mora P, Muhogora W, Muthuvelu P, Nikodemova D, Novak L, Pallewatte A, Pekarovic D, Shaaban M, Shelly E, Stepanyan K, Thelsy N, Visrutaratna P, Zaman A. A Study to Establish International Diagnostic Reference Levels for Paediatric Computed Tomography. in Radiation Protection Dosimetry. 2015;165(1-4):70-80.
doi:10.1093/rpd/ncv116 .

Vassileva, J., Rehani, M., Kostova-Lefterova, D., Al-Naemi, H. M., Al Suwaidi, J. S., Aranđić, Danijela, Bashier, E. H. O., Kodlulovich Renha, S., El-Nachef, L., Aguilar, J. G., Gershan, Vesna, Gershkevitsh, E., Gruppetta, E., Hustuc, A., Jauhari, A., Kharita, Mohammad Hassan, Khelassi-Toutaoui, N., Khosravi, H. R., Khoury, H., Kralik, I., Mahere, S., Mazuoliene, J., Mora, P., Muhogora, W., Muthuvelu, P., Nikodemova, D., Novak, L., Pallewatte, A., Pekarovic, D., Shaaban, M., Shelly, E., Stepanyan, K., Thelsy, N., Visrutaratna, P., Zaman, A., "A Study to Establish International Diagnostic Reference Levels for Paediatric Computed Tomography" in Radiation Protection Dosimetry, 165, no. 1-4 (2015):70-80,
https://doi.org/10.1093/rpd/ncv116 . .

TY  - JOUR
AU  - Antic, V.
AU  - Ciraj-Bjelac, Olivera
AU  - Rehani, M.
AU  - Aleksandrić, S.
AU  - Aranđić, Danijela
AU  - Ostojić, M.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5489
AB  - Workers involved in interventional cardiology procedures receive high eye lens dose if protection is not used. Currently, there is no suitable method for routine use for the measurement of eye dose. Since most angiography machines are equipped with suitable patient dosemeters, deriving factors linking staff eye doses to the patient doses can be helpful. In this study the patient kermaarea product, cumulative dose at an interventional reference point and eye dose in terms of H-p(3) of the cardiologists, nurses and radiographers for interventional cardiology procedures have been measured. Correlations between the patient dose and the staff eye dose were obtained. The mean eye dose was 121 Sv for the first operator, 33 Sv for the second operator/nurse and 12 Sv for radiographer. Normalised eye lens doses per unit kermaarea product were 0.94 Sv Gy(1) cm(2) for the first operator, 0.33 Sv Gy(1) cm(2) for the second operator/nurse and 0.16 Sv Gy(1) cm(2) for radiographers. Statistical analysis indicated that there is a weak but significant (p 0.01) correlation between the eye dose and the kermaarea product for all three staff categories. These values are based on a local practice and may provide useful reference for other studies for validation and for wider utilisation in assessing the eye dose using patient dose values.
T2  - Radiation Protection Dosimetry
T1  - Eye lens dosimetry in interventional cardiology: results of staff dose measurements and link to patient dose levels
VL  - 154
IS  - 3
SP  - 276
EP  - 284
DO  - 10.1093/rpd/ncs236
ER  - 

@article{
author = "Antic, V. and Ciraj-Bjelac, Olivera and Rehani, M. and Aleksandrić, S. and Aranđić, Danijela and Ostojić, M.",
year = "2013",
abstract = "Workers involved in interventional cardiology procedures receive high eye lens dose if protection is not used. Currently, there is no suitable method for routine use for the measurement of eye dose. Since most angiography machines are equipped with suitable patient dosemeters, deriving factors linking staff eye doses to the patient doses can be helpful. In this study the patient kermaarea product, cumulative dose at an interventional reference point and eye dose in terms of H-p(3) of the cardiologists, nurses and radiographers for interventional cardiology procedures have been measured. Correlations between the patient dose and the staff eye dose were obtained. The mean eye dose was 121 Sv for the first operator, 33 Sv for the second operator/nurse and 12 Sv for radiographer. Normalised eye lens doses per unit kermaarea product were 0.94 Sv Gy(1) cm(2) for the first operator, 0.33 Sv Gy(1) cm(2) for the second operator/nurse and 0.16 Sv Gy(1) cm(2) for radiographers. Statistical analysis indicated that there is a weak but significant (p 0.01) correlation between the eye dose and the kermaarea product for all three staff categories. These values are based on a local practice and may provide useful reference for other studies for validation and for wider utilisation in assessing the eye dose using patient dose values.",
journal = "Radiation Protection Dosimetry",
title = "Eye lens dosimetry in interventional cardiology: results of staff dose measurements and link to patient dose levels",
volume = "154",
number = "3",
pages = "276-284",
doi = "10.1093/rpd/ncs236"
}

Antic, V., Ciraj-Bjelac, O., Rehani, M., Aleksandrić, S., Aranđić, D.,& Ostojić, M.. (2013). Eye lens dosimetry in interventional cardiology: results of staff dose measurements and link to patient dose levels. in Radiation Protection Dosimetry, 154(3), 276-284.
https://doi.org/10.1093/rpd/ncs236

Antic V, Ciraj-Bjelac O, Rehani M, Aleksandrić S, Aranđić D, Ostojić M. Eye lens dosimetry in interventional cardiology: results of staff dose measurements and link to patient dose levels. in Radiation Protection Dosimetry. 2013;154(3):276-284.
doi:10.1093/rpd/ncs236 .

Antic, V., Ciraj-Bjelac, Olivera, Rehani, M., Aleksandrić, S., Aranđić, Danijela, Ostojić, M., "Eye lens dosimetry in interventional cardiology: results of staff dose measurements and link to patient dose levels" in Radiation Protection Dosimetry, 154, no. 3 (2013):276-284,
https://doi.org/10.1093/rpd/ncs236 . .

TY  - JOUR
AU  - Ciraj-Bjelac, Olivera
AU  - Rehani, M.
AU  - Minamoto, A.
AU  - Sim, K. H.
AU  - Liew, H. B.
AU  - Vano, Eliseo
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5160
AB  - Background: Recent studies have reported a significant increase in eye lens opacities among staff in the cardiac catheterization laboratory but indicated further studies are needed to confirm the findings. Objective: To evaluate the prevalence of opacities in eyes of cardiologists, radiographers and nurses working in interventional cardiology. Methods: The eyes of 52 staff in interventional cardiology facilities and 34 age-and sex-matched unexposed controls were screened in a cardiology conference held in Kuala Lumpur by dilated slit-lamp examination, and posterior lens changes were graded. Individual cumulative lens X-ray exposures were calculated from responses to a questionnaire in terms of workload and working practice. Results: The prevalence of posterior lens opacities among interventional cardiologists was 53%, while in nurses and radiographers it was 45%. Corresponding relative risks were 2.6 (95% CI: 1.2-5.4) and 2.2 (95% CI: 0.98-4.9), for interventional cardiologists and support staff, respectively. Conclusions: This study confirms a statistically significant increase in radiation-associated posterior lens changes in the eyes of interventional cardiology staff. Copyright (C) 2012 S. Karger AG, Basel
T2  - Cardiology
T1  - Radiation-Induced Eye Lens Changes and Risk for Cataract in Interventional Cardiology
VL  - 123
IS  - 3
SP  - 168
EP  - 171
DO  - 10.1159/000342458
ER  - 

@article{
author = "Ciraj-Bjelac, Olivera and Rehani, M. and Minamoto, A. and Sim, K. H. and Liew, H. B. and Vano, Eliseo",
year = "2012",
abstract = "Background: Recent studies have reported a significant increase in eye lens opacities among staff in the cardiac catheterization laboratory but indicated further studies are needed to confirm the findings. Objective: To evaluate the prevalence of opacities in eyes of cardiologists, radiographers and nurses working in interventional cardiology. Methods: The eyes of 52 staff in interventional cardiology facilities and 34 age-and sex-matched unexposed controls were screened in a cardiology conference held in Kuala Lumpur by dilated slit-lamp examination, and posterior lens changes were graded. Individual cumulative lens X-ray exposures were calculated from responses to a questionnaire in terms of workload and working practice. Results: The prevalence of posterior lens opacities among interventional cardiologists was 53%, while in nurses and radiographers it was 45%. Corresponding relative risks were 2.6 (95% CI: 1.2-5.4) and 2.2 (95% CI: 0.98-4.9), for interventional cardiologists and support staff, respectively. Conclusions: This study confirms a statistically significant increase in radiation-associated posterior lens changes in the eyes of interventional cardiology staff. Copyright (C) 2012 S. Karger AG, Basel",
journal = "Cardiology",
title = "Radiation-Induced Eye Lens Changes and Risk for Cataract in Interventional Cardiology",
volume = "123",
number = "3",
pages = "168-171",
doi = "10.1159/000342458"
}

Ciraj-Bjelac, O., Rehani, M., Minamoto, A., Sim, K. H., Liew, H. B.,& Vano, E.. (2012). Radiation-Induced Eye Lens Changes and Risk for Cataract in Interventional Cardiology. in Cardiology, 123(3), 168-171.
https://doi.org/10.1159/000342458

Ciraj-Bjelac O, Rehani M, Minamoto A, Sim KH, Liew HB, Vano E. Radiation-Induced Eye Lens Changes and Risk for Cataract in Interventional Cardiology. in Cardiology. 2012;123(3):168-171.
doi:10.1159/000342458 .

Ciraj-Bjelac, Olivera, Rehani, M., Minamoto, A., Sim, K. H., Liew, H. B., Vano, Eliseo, "Radiation-Induced Eye Lens Changes and Risk for Cataract in Interventional Cardiology" in Cardiology, 123, no. 3 (2012):168-171,
https://doi.org/10.1159/000342458 . .

TY  - JOUR
AU  - Ciraj-Bjelac, Olivera
AU  - Beganovic, A.
AU  - Faj, D.
AU  - Ivanović, S.
AU  - Videnovic, I.
AU  - Rehani, M.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4540
AB  - Level of staff and patient radiation protection in interventional cardiology in four counties (Bosnia and Herzegovina, Croatia, Montenegro and Serbia) as a part of International Atomic Energy Agency project (RER/9/093) are presented. Patient doses were assessed in terms of air kerma area product (KAP), peak skin dose (PSD) or air kerma at interventional reference point (K(IRP)). Results were available from nine hospitals: 775 patients for KAP, 157 for PSD and 437 for K(IRP). Eight centres reported KAP GT 100 Gy cm(2) and five centres reported values GT 200 Gy cm(2). From patients monitored in terms of PSD, 14 (9 %) had PSD GT 2 Gy and 6 (3 %) patients from those monitored in terms of K(IRP) had value GT 5 Gy, indicating risk of skin injury. The results indicate need for optimisation and dose monitoring in complex fluoroscopically guided cardiology interventions.
T2  - Radiation Protection Dosimetry
T1  - Status of Radiation Protection in Interventional Cardiology in Four East European Countries
VL  - 147
IS  - 1-2
SP  - 62
EP  - 67
DO  - 10.1093/rpd/ncr268
ER  - 

@article{
author = "Ciraj-Bjelac, Olivera and Beganovic, A. and Faj, D. and Ivanović, S. and Videnovic, I. and Rehani, M.",
year = "2011",
abstract = "Level of staff and patient radiation protection in interventional cardiology in four counties (Bosnia and Herzegovina, Croatia, Montenegro and Serbia) as a part of International Atomic Energy Agency project (RER/9/093) are presented. Patient doses were assessed in terms of air kerma area product (KAP), peak skin dose (PSD) or air kerma at interventional reference point (K(IRP)). Results were available from nine hospitals: 775 patients for KAP, 157 for PSD and 437 for K(IRP). Eight centres reported KAP GT 100 Gy cm(2) and five centres reported values GT 200 Gy cm(2). From patients monitored in terms of PSD, 14 (9 %) had PSD GT 2 Gy and 6 (3 %) patients from those monitored in terms of K(IRP) had value GT 5 Gy, indicating risk of skin injury. The results indicate need for optimisation and dose monitoring in complex fluoroscopically guided cardiology interventions.",
journal = "Radiation Protection Dosimetry",
title = "Status of Radiation Protection in Interventional Cardiology in Four East European Countries",
volume = "147",
number = "1-2",
pages = "62-67",
doi = "10.1093/rpd/ncr268"
}

Ciraj-Bjelac, O., Beganovic, A., Faj, D., Ivanović, S., Videnovic, I.,& Rehani, M.. (2011). Status of Radiation Protection in Interventional Cardiology in Four East European Countries. in Radiation Protection Dosimetry, 147(1-2), 62-67.
https://doi.org/10.1093/rpd/ncr268

Ciraj-Bjelac O, Beganovic A, Faj D, Ivanović S, Videnovic I, Rehani M. Status of Radiation Protection in Interventional Cardiology in Four East European Countries. in Radiation Protection Dosimetry. 2011;147(1-2):62-67.
doi:10.1093/rpd/ncr268 .

Ciraj-Bjelac, Olivera, Beganovic, A., Faj, D., Ivanović, S., Videnovic, I., Rehani, M., "Status of Radiation Protection in Interventional Cardiology in Four East European Countries" in Radiation Protection Dosimetry, 147, no. 1-2 (2011):62-67,
https://doi.org/10.1093/rpd/ncr268 . .