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Article: Evaluation of the accuracy of volume determination on the orbit and eyeball using MRI

TitleEvaluation of the accuracy of volume determination on the orbit and eyeball using MRI
Authors
Issue Date2005
PublisherWB Saunders Co Ltd. The Journal's web site is located at http://www.elsevier.com/locate/radi
Citation
Radiography, 2005, v. 11 n. 1, p. 35-39 How to Cite?
AbstractThis study reports a calibration carried out on phantoms simulating the orbit and eyeball to evaluate the accuracy of volumetric determination using MRI DICOM (Digital Imaging and Communication in Medicine) images. Ten tailor-made spherical silicon balls ranging in size from 5 to 14 cm3 and 10 silicon moulds of orbits from 10 human dried skulls were used to simulate the eyes and orbits, respectively. The CISS (Constructive interference in steady state, TR/TE = 16/8 ms) T2-weighted sequence was taken using a Siemens MRI scanner. The volume of each phantom was computed and compared with the known physical volumes. The computed and physical volumes were highly correlated for both eyeball (r = 0.997) and the orbit (r = 0.992) phantoms. Coefficients of variation of the computed and physical volumes were low. Consequently, it is possible to apply a calibration value to the computed volume to derive the physical volume with a high level of confidence. We conclude that with appropriate calibration, it is viable to use MRI DICOM images to derive the volume of the eyeball and the orbit. © 2004 The College of Radiographers. Published by Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/66150
ISSN
2015 SCImago Journal Rankings: 0.219

 

DC FieldValueLanguage
dc.contributor.authorChau, Aen_HK
dc.contributor.authorFung, Ken_HK
dc.contributor.authorYap, Men_HK
dc.date.accessioned2010-09-06T05:43:59Z-
dc.date.available2010-09-06T05:43:59Z-
dc.date.issued2005en_HK
dc.identifier.citationRadiography, 2005, v. 11 n. 1, p. 35-39en_HK
dc.identifier.issn1078-8174en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66150-
dc.description.abstractThis study reports a calibration carried out on phantoms simulating the orbit and eyeball to evaluate the accuracy of volumetric determination using MRI DICOM (Digital Imaging and Communication in Medicine) images. Ten tailor-made spherical silicon balls ranging in size from 5 to 14 cm3 and 10 silicon moulds of orbits from 10 human dried skulls were used to simulate the eyes and orbits, respectively. The CISS (Constructive interference in steady state, TR/TE = 16/8 ms) T2-weighted sequence was taken using a Siemens MRI scanner. The volume of each phantom was computed and compared with the known physical volumes. The computed and physical volumes were highly correlated for both eyeball (r = 0.997) and the orbit (r = 0.992) phantoms. Coefficients of variation of the computed and physical volumes were low. Consequently, it is possible to apply a calibration value to the computed volume to derive the physical volume with a high level of confidence. We conclude that with appropriate calibration, it is viable to use MRI DICOM images to derive the volume of the eyeball and the orbit. © 2004 The College of Radiographers. Published by Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherWB Saunders Co Ltd. The Journal's web site is located at http://www.elsevier.com/locate/radien_HK
dc.relation.ispartofRadiographyen_HK
dc.titleEvaluation of the accuracy of volume determination on the orbit and eyeball using MRIen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1078-8174&volume=11&spage=35&epage=39&date=2005&atitle=Evaluation+of+the+accuracy+of+volume+determination+on+the+orbit+and+eyeball+using+MRIen_HK
dc.identifier.emailChau, CM: ansonc@HKUCC.hku.hken_HK
dc.identifier.emailFung, KY: ckyfung@HKUCC.hku.hken_HK
dc.identifier.authorityChau, CM=rp00044en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.radi.2004.10.004en_HK
dc.identifier.scopuseid_2-s2.0-12844273862en_HK
dc.identifier.hkuros121857en_HK
dc.identifier.volume11en_HK
dc.identifier.issue1en_HK
dc.identifier.spage35en_HK
dc.identifier.epage39en_HK
dc.publisher.placeUnited Kingdomen_HK

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