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Contrast-enhanced ultrasound vs multidetector-computed tomography for detecting liver metastases in colorectal cancer: a prospective, blinded, patient-by-patient analysis.
MedLine Citation:
PMID:  20412096     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Aim  This study compared the sensitivity and specificity of contrast-enhanced ultrasound (CEUS) and multidetector-computed tomography (MDCT) in the detection of liver metastases in patients with colorectal cancer. Method  Between September 2004 and December 2008, 271 consecutive patients (146 men and 125 women; median age 68 years, range: 34-91 years) with primary colorectal cancer were evaluated. All underwent combined liver ultrasound and CEUS following intravenous injection of 2.4 ml of SonoVue(TM) . The interval from injection to arrival time in the hepatic vein (ATHV) was noted. Contrast-enhanced MDCT in the portal phase was performed and interpreted blindly. In all patients, intra-operative ultrasound was used as the reference point. In addition, magnetic resonance imaging (MRI) or biopsy was performed on all suspicious lesions or if there was inconsistency in the results. Results  Liver metastases were detected in 21 (8%) patients. Both CEUS and MDCT had a sensitivity of 85.7%, with respective specificities of 97.6% and 95.6%, and positive predictive values of 75%vs 62%. The negative predictive value of both methods was 99%. In patients with and without liver metastases, ATHV was 18 and 22 s, respectively (P < 0.05). Conclusion  CEUS has potential as a diagnostic alternative to MDCT in the detection of liver metastases. ATHV was shorter in patients with liver metastases.
Authors:
S R Rafaelsen; A Jakobsen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland     Volume:  13     ISSN:  1463-1318     ISO Abbreviation:  Colorectal Dis     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883611     Medline TA:  Colorectal Dis     Country:  England    
Other Details:
Languages:  eng     Pagination:  420-5     Citation Subset:  IM    
Copyright Information:
© 2011 The Authors. Colorectal Disease © 2011 The Association of Coloproctology of Great Britain and Ireland.
Affiliation:
Departments of Radiology Oncology, Danish Colorectal Cancer Group South, University of Southern Denmark and Vejle Hospital, Vejle, Denmark.
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