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Article: Evaluation of patient effective dose from sentinel lymph node lymphoscintigraphy in breast cancer: A phantom study with SPECT/CT and ICRP-103 recommendations

TitleEvaluation of patient effective dose from sentinel lymph node lymphoscintigraphy in breast cancer: A phantom study with SPECT/CT and ICRP-103 recommendations
Authors
KeywordsLymphoscintigraphy
Radiation safety
SPECT/CT
Issue Date2012
PublisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/ejrad
Citation
European Journal Of Radiology, 2012, v. 81 n. 5, p. e717-e720 How to Cite?
AbstractObjective: To evaluate the effective dose delivered to patients undergoing sentinel lymph node (SLN) lymphoscintigraphy by taking into account both the transmission dose using the CT component of a SPECT/CT system and the 99mTc internal emission dose. Materials and methods: An adult female humanoid phantom and a set of thermoluminescent dosimeters were used in dose measurement from the CT transmission irradiation. The choice of measurement organs in the humanoid was guided by the recommendations described in the International Commission on Radiological Protection report number 103 (ICRP-103). The effective doses due to 99mTc internal emission source were re-calculated from measurement data reported in our previous study on the same subject with the use of tissue weighting factors of ICRP-103. Results: CT transmission dose is the main contribution to the patient total effective dose for both 1-day and 2-day lymphoscintigraphy protocols and for different surgical procedures. Patients undergoing SLN lymphoscintigraphy receive about the same amount of total effective dose of about 3 mSv for both 1-day and 2-day protocol, regardless of whether the tissues containing radioactivity would be excised at surgery or not. Conclusion: Although the total effective dose from using SPECT/CT is equivalent to the annual natural background radiation of about 3 mSv, nuclear medicine physicians should be aware of the increase in effective dose for SLN lymphoscintigraphy using hybrid imaging technique of SPECT/CT when compared to conventional planar 57Co flood source for transmission scan. Results from the current study provide update information in radiation exposure to patients undergoing SLN lymphoscintigraphy with the use of SPECT/CT. © 2012 Elsevier Ireland Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/146400
ISSN
2015 Impact Factor: 2.593
2015 SCImago Journal Rankings: 1.166
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLaw, Men_HK
dc.contributor.authorMa, WHen_HK
dc.contributor.authorLeung, Ren_HK
dc.contributor.authorLi, Sen_HK
dc.contributor.authorWong, KKen_HK
dc.contributor.authorHo, WYen_HK
dc.contributor.authorKwong, Aen_HK
dc.date.accessioned2012-04-24T07:51:48Z-
dc.date.available2012-04-24T07:51:48Z-
dc.date.issued2012en_HK
dc.identifier.citationEuropean Journal Of Radiology, 2012, v. 81 n. 5, p. e717-e720en_HK
dc.identifier.issn0720-048Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/146400-
dc.description.abstractObjective: To evaluate the effective dose delivered to patients undergoing sentinel lymph node (SLN) lymphoscintigraphy by taking into account both the transmission dose using the CT component of a SPECT/CT system and the 99mTc internal emission dose. Materials and methods: An adult female humanoid phantom and a set of thermoluminescent dosimeters were used in dose measurement from the CT transmission irradiation. The choice of measurement organs in the humanoid was guided by the recommendations described in the International Commission on Radiological Protection report number 103 (ICRP-103). The effective doses due to 99mTc internal emission source were re-calculated from measurement data reported in our previous study on the same subject with the use of tissue weighting factors of ICRP-103. Results: CT transmission dose is the main contribution to the patient total effective dose for both 1-day and 2-day lymphoscintigraphy protocols and for different surgical procedures. Patients undergoing SLN lymphoscintigraphy receive about the same amount of total effective dose of about 3 mSv for both 1-day and 2-day protocol, regardless of whether the tissues containing radioactivity would be excised at surgery or not. Conclusion: Although the total effective dose from using SPECT/CT is equivalent to the annual natural background radiation of about 3 mSv, nuclear medicine physicians should be aware of the increase in effective dose for SLN lymphoscintigraphy using hybrid imaging technique of SPECT/CT when compared to conventional planar 57Co flood source for transmission scan. Results from the current study provide update information in radiation exposure to patients undergoing SLN lymphoscintigraphy with the use of SPECT/CT. © 2012 Elsevier Ireland Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/ejraden_HK
dc.relation.ispartofEuropean Journal of Radiologyen_HK
dc.subjectLymphoscintigraphyen_HK
dc.subjectRadiation safetyen_HK
dc.subjectSPECT/CTen_HK
dc.subject.meshLymphoscintigraphy-
dc.subject.meshRadiation safety-
dc.subject.meshSPECT/CT-
dc.titleEvaluation of patient effective dose from sentinel lymph node lymphoscintigraphy in breast cancer: A phantom study with SPECT/CT and ICRP-103 recommendationsen_HK
dc.typeArticleen_HK
dc.identifier.emailKwong, A: avakwong@hkucc.hku.hken_HK
dc.identifier.authorityKwong, A=rp01734en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ejrad.2012.01.035en_HK
dc.identifier.pmid22386916-
dc.identifier.scopuseid_2-s2.0-84862830128en_HK
dc.identifier.hkuros199132en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84862830128&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume81en_HK
dc.identifier.issue5en_HK
dc.identifier.spagee717en_HK
dc.identifier.epagee720en_HK
dc.identifier.isiWOS:000303108000005-
dc.publisher.placeIrelanden_HK
dc.identifier.scopusauthoridLaw, M=8663654000en_HK
dc.identifier.scopusauthoridMa, WH=55261364000en_HK
dc.identifier.scopusauthoridLeung, R=55261156300en_HK
dc.identifier.scopusauthoridLi, S=55261683600en_HK
dc.identifier.scopusauthoridWong, KK=7404758873en_HK
dc.identifier.scopusauthoridHo, WY=25938053100en_HK
dc.identifier.scopusauthoridKwong, A=8913654300en_HK

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