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DOES THE USE OF CONTEMPORARY CT SCANNERS ALTER THE RADIATION DOSE DEBATE IN THE IMAGING WORK UP FOR PULMONARY EMBOLISM?

Abstract

The aim of this study was to compare patient doses from ventilation perfusion single photon emission computed tomography (V/Q SPECT) and computed tomography pulmonary angiography (CTPA) performed on contemporary scanners. Effective dose (ED) for V/Q SPECT was calculated using organ doses per unit administered activity of the radiopharmaceuticals. Organ doses in CT were measured using nanoDot aluminium oxide optically stimulated dosemeters placed within a female adult anthropomorphic phantom. To simulate a larger patient, the phantom was wrapped in three layers of Superflab sheets. The V/Q SPECT resulted in ED of 2.82 mSv and a breast dose of 1.12 mGy. The CTPA dose was 1.82 ± 0.42 and 3.43 ± 0.91 mSv, whilst dose to the breast tissue was 2.86 ± 0.86 and 5.95 ± 0.44 mGy for small- and medium-sized patients, respectively.

Authors+Show Affiliations

Department of Diagnostic Radiology, Dalhousie University, 1276 South Park Street, PO BOX 9000, Halifax, NS, Canada B3H 2Y9. Department of Diagnostic Imaging, NS Health Authority, 1276 South Park Street, PO BOX 9000, Halifax, NS, Canada B3H 2Y9.Department of Diagnostic Radiology, Dalhousie University, 1276 South Park Street, PO BOX 9000, Halifax, NS, Canada B3H 2Y9. Department of Diagnostic Imaging, NS Health Authority, 1276 South Park Street, PO BOX 9000, Halifax, NS, Canada B3H 2Y9.Department of Diagnostic Radiology, Dalhousie University, 1276 South Park Street, PO BOX 9000, Halifax, NS, Canada B3H 2Y9. Department of Diagnostic Imaging, NS Health Authority, 1276 South Park Street, PO BOX 9000, Halifax, NS, Canada B3H 2Y9.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31411698

Citation

Tonkopi, Elena, et al. "DOES the USE of CONTEMPORARY CT SCANNERS ALTER the RADIATION DOSE DEBATE in the IMAGING WORK UP for PULMONARY EMBOLISM?" Radiation Protection Dosimetry, 2019.
Tonkopi E, Manos D, Ross A. DOES THE USE OF CONTEMPORARY CT SCANNERS ALTER THE RADIATION DOSE DEBATE IN THE IMAGING WORK UP FOR PULMONARY EMBOLISM? Radiat Prot Dosimetry. 2019.
Tonkopi, E., Manos, D., & Ross, A. (2019). DOES THE USE OF CONTEMPORARY CT SCANNERS ALTER THE RADIATION DOSE DEBATE IN THE IMAGING WORK UP FOR PULMONARY EMBOLISM? Radiation Protection Dosimetry, doi:10.1093/rpd/ncz174.
Tonkopi E, Manos D, Ross A. DOES the USE of CONTEMPORARY CT SCANNERS ALTER the RADIATION DOSE DEBATE in the IMAGING WORK UP for PULMONARY EMBOLISM. Radiat Prot Dosimetry. 2019 Aug 14; PubMed PMID: 31411698.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - DOES THE USE OF CONTEMPORARY CT SCANNERS ALTER THE RADIATION DOSE DEBATE IN THE IMAGING WORK UP FOR PULMONARY EMBOLISM? AU - Tonkopi,Elena, AU - Manos,Daria, AU - Ross,Andrew, Y1 - 2019/08/14/ PY - 2019/01/16/received PY - 2019/07/05/revised PY - 2019/07/08/accepted PY - 2019/8/15/entrez JF - Radiation protection dosimetry JO - Radiat Prot Dosimetry N2 - The aim of this study was to compare patient doses from ventilation perfusion single photon emission computed tomography (V/Q SPECT) and computed tomography pulmonary angiography (CTPA) performed on contemporary scanners. Effective dose (ED) for V/Q SPECT was calculated using organ doses per unit administered activity of the radiopharmaceuticals. Organ doses in CT were measured using nanoDot aluminium oxide optically stimulated dosemeters placed within a female adult anthropomorphic phantom. To simulate a larger patient, the phantom was wrapped in three layers of Superflab sheets. The V/Q SPECT resulted in ED of 2.82 mSv and a breast dose of 1.12 mGy. The CTPA dose was 1.82 ± 0.42 and 3.43 ± 0.91 mSv, whilst dose to the breast tissue was 2.86 ± 0.86 and 5.95 ± 0.44 mGy for small- and medium-sized patients, respectively. SN - 1742-3406 UR - https://www.unboundmedicine.com/medline/citation/31411698/DOES_THE_USE_OF_CONTEMPORARY_CT_SCANNERS_ALTER_THE_RADIATION_DOSE_DEBATE_IN_THE_IMAGING_WORK_UP_FOR_PULMONARY_EMBOLISM L2 - https://academic.oup.com/rpd/article-lookup/doi/10.1093/rpd/ncz174 DB - PRIME DP - Unbound Medicine ER -