File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Comparison of Sonographic Appearance of Normal and Postradiotherapy Parotid Glands: A Preliminary Study

TitleComparison of Sonographic Appearance of Normal and Postradiotherapy Parotid Glands: A Preliminary Study
Authors
Issue Date2007
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/ultrasmedbio
Citation
Ultrasound In Medicine And Biology, 2007, v. 33 n. 8, p. 1244-1250 How to Cite?
AbstractThis study was undertaken to evaluate and compare the grey-scale and Doppler sonographic features of postradiotherapy (RT) and normal parotid glands. A total of 10 patients with previous head and neck RT and with different degrees of xerostomia were included. Another 10 healthy subjects, who are age and gender-matched with the 10 patients, were also recruited. Grey-scale and Doppler ultrasound examinations of parotid glands were performed on both the patients and healthy subjects. The parotid glands were assessed for their size, echogenicity, echotexture, conspicuity of intraparotid ducts, blood flow velocity and vascular resistance. Results showed that post-RT parotid glands tended to be smaller than normal parotid glands with a significant difference in the transverse dimension (p < 0.05). Normal parotid glands appeared homogeneous, hyperechoic relative to the adjacent muscles and had marginally seen intraparotid ducts. Post-RT parotid glands were heterogeneous, isoechoic (50%) or hypoechoic (50%) relative to the adjacent muscles, and the intraparotid ducts were either marginally (50%) or obviously (50%) seen on ultrasound. The PSV, RI and PI of normal parotid glands were significantly higher than that of post-RT parotid glands (p < 0.05). However, the difference in EDV between normal and post-RT parotid glands was not significant (p > 0.05). In conclusion, ultrasound is useful in assessing parotid glands. To avoid image misinterpretation, post-RT changes in the sonographic appearance of parotid glands should be considered in examining patients with previous head and neck RT. (E-mail: htmying@polyu.edu.hk). © 2007 World Federation for Ultrasound in Medicine & Biology.
Persistent Identifierhttp://hdl.handle.net/10722/71964
ISSN
2015 Impact Factor: 2.298
2015 SCImago Journal Rankings: 0.885
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYing, Men_HK
dc.contributor.authorWu, VWCen_HK
dc.contributor.authorKwong, DLWen_HK
dc.date.accessioned2010-09-06T06:36:57Z-
dc.date.available2010-09-06T06:36:57Z-
dc.date.issued2007en_HK
dc.identifier.citationUltrasound In Medicine And Biology, 2007, v. 33 n. 8, p. 1244-1250en_HK
dc.identifier.issn0301-5629en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71964-
dc.description.abstractThis study was undertaken to evaluate and compare the grey-scale and Doppler sonographic features of postradiotherapy (RT) and normal parotid glands. A total of 10 patients with previous head and neck RT and with different degrees of xerostomia were included. Another 10 healthy subjects, who are age and gender-matched with the 10 patients, were also recruited. Grey-scale and Doppler ultrasound examinations of parotid glands were performed on both the patients and healthy subjects. The parotid glands were assessed for their size, echogenicity, echotexture, conspicuity of intraparotid ducts, blood flow velocity and vascular resistance. Results showed that post-RT parotid glands tended to be smaller than normal parotid glands with a significant difference in the transverse dimension (p < 0.05). Normal parotid glands appeared homogeneous, hyperechoic relative to the adjacent muscles and had marginally seen intraparotid ducts. Post-RT parotid glands were heterogeneous, isoechoic (50%) or hypoechoic (50%) relative to the adjacent muscles, and the intraparotid ducts were either marginally (50%) or obviously (50%) seen on ultrasound. The PSV, RI and PI of normal parotid glands were significantly higher than that of post-RT parotid glands (p < 0.05). However, the difference in EDV between normal and post-RT parotid glands was not significant (p > 0.05). In conclusion, ultrasound is useful in assessing parotid glands. To avoid image misinterpretation, post-RT changes in the sonographic appearance of parotid glands should be considered in examining patients with previous head and neck RT. (E-mail: htmying@polyu.edu.hk). © 2007 World Federation for Ultrasound in Medicine & Biology.en_HK
dc.languageengen_HK
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/ultrasmedbioen_HK
dc.relation.ispartofUltrasound in Medicine and Biologyen_HK
dc.rightsUltrasound in Medicine & Biology. Copyright © Elsevier Inc.en_HK
dc.subject.meshAdulten_HK
dc.subject.meshBlood Flow Velocityen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMiddle Ageden_HK
dc.subject.meshNasopharyngeal Neoplasms - radiotherapyen_HK
dc.subject.meshParotid Gland - blood supply - injuries - pathology - ultrasonographyen_HK
dc.subject.meshRadiation Injuries - etiology - pathology - ultrasonographyen_HK
dc.subject.meshRadiotherapy - adverse effectsen_HK
dc.subject.meshUltrasonography, Doppler - methodsen_HK
dc.subject.meshVascular Resistanceen_HK
dc.subject.meshXerostomia - etiology - ultrasonographyen_HK
dc.titleComparison of Sonographic Appearance of Normal and Postradiotherapy Parotid Glands: A Preliminary Studyen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0301-5629&volume=33&spage=1244&epage=50&date=2007&atitle=Comparison+of+sonographic+appearance+of+normal+and+postradiotherapy+parotid+glands:+a+preliminary+studyen_HK
dc.identifier.emailKwong, DLW:dlwkwong@hku.hken_HK
dc.identifier.authorityKwong, DLW=rp00414en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ultrasmedbio.2007.02.016en_HK
dc.identifier.pmid17466447-
dc.identifier.scopuseid_2-s2.0-34547120200en_HK
dc.identifier.hkuros151998en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34547120200&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume33en_HK
dc.identifier.issue8en_HK
dc.identifier.spage1244en_HK
dc.identifier.epage1250en_HK
dc.identifier.isiWOS:000248693700009-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYing, M=7005164087en_HK
dc.identifier.scopusauthoridWu, VWC=7006045803en_HK
dc.identifier.scopusauthoridKwong, DLW=15744231600en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats