File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Screening of Colonic Tumors by Air-Inflated Magnetic Resonance (MR) Colonography

TitleScreening of Colonic Tumors by Air-Inflated Magnetic Resonance (MR) Colonography
Authors
Issue Date2004
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1053-1807/
Citation
Journal Of Magnetic Resonance Imaging, 2004, v. 19 n. 4, p. 447-452 How to Cite?
AbstractPurpose: To assess the accuracy of air-inflated magnetic resonance (MR) colonography for the detection of colonic lesions. Materials and Methods: A total of 36 patients underwent both colonoscopy and air-inflated MR colonography. Breath-hold sequences (volumetric interpolated breath-hold examination (VIBE) coronal, and half-Fourier acquisition single-shot turbo spin-echo (HASTE) axial and coronal, both supine and prone) were performed with a 1.5T scanner. The detection of colonic lesions by MR colonography was then correlated with the findings from the colonoscopy performed on the same day. Results: Two patients were unable to complete the MR colonography examination. Analysis was based on the results from 34 patients (17 males and 17 females, 38-70 years old, mean age = 54.9 years) who completed both examinations. MR colonography depicted two of two colonic tumors, one of one P4 (>2 cm) polyp, one of two P2 (0.5-1 cm) polyps, and two of 11 P1 (<0,5 cm) polyps. False-positive MR colonography interpretations were noted for one P1 polyp and two P2 polyps. The overall sensitivity, positive predictive value, and accuracy of MR colonography were 38%, 67%, and 46.2%, respectively. For the detection of endoluminal lesions >5 mm, air-inflated MR colonography yielded a sensitivity of 75%, specificity of 93.3%, accuracy of 91.2%, positive predictive value of 60%, and negative predictive value of 96.6%. Conclusion: Air-inflated MR colonography is a new technique that deserves further investigation.
Persistent Identifierhttp://hdl.handle.net/10722/162833
ISSN
2015 Impact Factor: 3.25
2015 SCImago Journal Rankings: 1.683
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLam, WWMen_US
dc.contributor.authorLeung, WKen_US
dc.contributor.authorWu, JKLen_US
dc.contributor.authorSo, NMCen_US
dc.contributor.authorSung, JJYen_US
dc.date.accessioned2012-09-05T05:24:04Z-
dc.date.available2012-09-05T05:24:04Z-
dc.date.issued2004en_US
dc.identifier.citationJournal Of Magnetic Resonance Imaging, 2004, v. 19 n. 4, p. 447-452en_US
dc.identifier.issn1053-1807en_US
dc.identifier.urihttp://hdl.handle.net/10722/162833-
dc.description.abstractPurpose: To assess the accuracy of air-inflated magnetic resonance (MR) colonography for the detection of colonic lesions. Materials and Methods: A total of 36 patients underwent both colonoscopy and air-inflated MR colonography. Breath-hold sequences (volumetric interpolated breath-hold examination (VIBE) coronal, and half-Fourier acquisition single-shot turbo spin-echo (HASTE) axial and coronal, both supine and prone) were performed with a 1.5T scanner. The detection of colonic lesions by MR colonography was then correlated with the findings from the colonoscopy performed on the same day. Results: Two patients were unable to complete the MR colonography examination. Analysis was based on the results from 34 patients (17 males and 17 females, 38-70 years old, mean age = 54.9 years) who completed both examinations. MR colonography depicted two of two colonic tumors, one of one P4 (>2 cm) polyp, one of two P2 (0.5-1 cm) polyps, and two of 11 P1 (<0,5 cm) polyps. False-positive MR colonography interpretations were noted for one P1 polyp and two P2 polyps. The overall sensitivity, positive predictive value, and accuracy of MR colonography were 38%, 67%, and 46.2%, respectively. For the detection of endoluminal lesions >5 mm, air-inflated MR colonography yielded a sensitivity of 75%, specificity of 93.3%, accuracy of 91.2%, positive predictive value of 60%, and negative predictive value of 96.6%. Conclusion: Air-inflated MR colonography is a new technique that deserves further investigation.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1053-1807/en_US
dc.relation.ispartofJournal of Magnetic Resonance Imagingen_US
dc.subject.meshAdulten_US
dc.subject.meshAgeden_US
dc.subject.meshAiren_US
dc.subject.meshColon - Pathologyen_US
dc.subject.meshColonic Neoplasms - Diagnosisen_US
dc.subject.meshColonic Polyps - Diagnosisen_US
dc.subject.meshColonoscopyen_US
dc.subject.meshFalse Positive Reactionsen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshImage Processing, Computer-Assisteden_US
dc.subject.meshInsufflationen_US
dc.subject.meshMagnetic Resonance Imaging - Adverse Effects - Methodsen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshPatient Satisfactionen_US
dc.subject.meshPredictive Value Of Testsen_US
dc.subject.meshSensitivity And Specificityen_US
dc.titleScreening of Colonic Tumors by Air-Inflated Magnetic Resonance (MR) Colonographyen_US
dc.typeArticleen_US
dc.identifier.emailLeung, WK:waikleung@hku.hken_US
dc.identifier.authorityLeung, WK=rp01479en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/jmri.20028en_US
dc.identifier.pmid15065168-
dc.identifier.scopuseid_2-s2.0-1842537944en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-1842537944&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume19en_US
dc.identifier.issue4en_US
dc.identifier.spage447en_US
dc.identifier.epage452en_US
dc.identifier.isiWOS:000220636800009-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLam, WWM=13410486800en_US
dc.identifier.scopusauthoridLeung, WK=7201504523en_US
dc.identifier.scopusauthoridWu, JKL=7409260468en_US
dc.identifier.scopusauthoridSo, NMC=7003780596en_US
dc.identifier.scopusauthoridSung, JJY=24473715000en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats