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| 1 | Single-center study comparing computed tomography colonography with conventional colonoscopy显示文摘AIM:To compare the results from computed tomography (CT) colonography with conventional colonoscopy in symptomatic patients referred for colonoscopy. METHODS: The study included 227 adult outpatients, mean age 60 years, with appropriate indications for colonoscopy. CT colonography and colonoscopy were performed on the same day in a metropolitan teaching hospital. Colonoscopists were initially blinded to the results of CT colonography but there was segmental unblinding during the procedure. The primary outcome measures were the sensitivity and specificity of CT colonography for the identification of polyps seen at colonoscopy (i.e. analysis by polyp). Secondary outcome measures included an analysis by patient, extracolonic findings at CT colonography, adverse events with both procedures and patient acceptance and preference. RESULTS: Twenty-five patients (11%) were excluded from the analysis because of incomplete colonoscopy or poor bowel preparation that affected either CT colonography, colonoscopy or both procedures. Polyps and masses (usually cancers) were detected at colonoscopy and CT colonography in 35% and 42% of patients, respectively. Of nine patients with a finaldiagnosis of cancer, eight (89%) were identified by CT colonography as masses (5) or polyps (3). For polyps analyzed according to polyp, the overall sensitivity of CT colonography was 50% (95% CI, 39%-61%) but this increased to 71% (95% CI, 52%-85%) for polyps ≥ 6 mm in size. Similarly, specificity for all polyps was 48% (95% CI, 39%-58%) increasing to 67% (95% CI, 56%-76%) for polyps ≥ 6 mm. Adverse events were uncommon but included one colonic perforation at colonoscopy. Patient acceptance was high for both procedures but preference favoured CT colonography. CONCLUSION: Although CT colonography was more sensitive in this study than in some previous studies, the procedure is not yet sensitive enough for widespread application in symptomatic patients. | Ian C Roberts-Thomson Graeme R Tucker Peter J Hewett Peter Cheung Ruben A Sebben EE Win Khoo Julie D Marker Wayne K Clapton | 2008 | World Journal of Gastroenterology2008，14，3： | 4 |
| 2 | Pollutants in Hong Kong soils: Potycyclic aromatic hydrocarbons显示文摘 | CHUNG M K HU R CHEUNG K C | 2007 | Chemosphere2007，67，3： | 1 |
| 3 | Ecotoxicological as-sessment of persistent organic and heavy metal contamination in HongKong coastal sediment显示文摘 | WONG C K C YEUNG H Y CHEUNG R Y H | 2000 | Archives of Environmental Contamination andToxicology2000，38，4： | 1 |
| 4 | A Two Stage Stochastic Network Model and Solution Methods for the Dynamic Empty Container Allocation Problem显示文摘 | Cheung R K and Chen C | 1998 | Transportation Science1998，32，2： | 1 |
| 5 | pH-sensitive polymers that enhance intracellular drug delivery in vivo显示文摘 | Kyriakides T R Cheung C Y Murthy N | 2002 | J Control Release2002，78，13： | 1 |
| 6 | What is the relationship between the Glasgov coma scale and airway protective reflexes in the Chinese population? 显示文摘 | Rotheray K R Cheung P S Cheung C S | 2012 | Resus- citation2012，83，1： | 1 |
| 7 | Reproducibility of lung tumor position and reduction of lung mass within the planning target volume using active breathing control(ABC)显示文摘 | Cheung P C Sixel K E Tirona R | 2003 | Int J Radiat Oncol Biol Phys2003，57，5： | 1 |
| 8 | Evolutionarily divergent herpesviruses modulate T cell activation by targeting the herpesvirus entry mediator cosignaling pathway显示文摘 | Cheung T C Humphreys I R Potter K G | 2005 | Proc Natl Acad Sci USA2005，102，13： | 1 |
| 9 | Energy-efficient envelopedesign for high-rise apartments显示文摘 | Cheung C K Fuller R J Luther M B | 2005 | Energy and Buildings2005，37，1： | 1 |
| 10 | Dissociation of G-protein alpha from rhabdomeric membranes decreases its interaction with rhodopsin and increases its degradation by calpain显示文摘 | BAMSEY C MAYEENUDDIN L H CHEUNG R | 2000 | Comp Biochem Physiol B Biochem Mol Biol2000，127，1： | 1 |
| 11 | Characterization of raw sludge,chemically modified sludge and anaerobcially digested sludge in HONG KONG显示文摘 | Chu C W Poon C S Cheung R Y H | 1998 | Wat Sci Tech1998，38，2： | 1 |
| 12 | The impact of electronic word-of-mouth communication: a literature analysis and integrative model 显示文摘 | Cheung C M K Thadani D R | 2012 | Decision Support Systems2012，54，1： | 1 |
| 13 | Polyphyllin D-a potential anticancer agent to kill hepatocarcinoma cells with multi-drug resistance显示文摘 | Lee R K Y Ong R C Y Cheung J Y N | 2009 | Current Opinion in Chemical Biology2009，，3： | 1 |
| 14 | A User-Oriented Software Reliability Model显示文摘 | R C Cheung | 1980 | IEEE Trans on Software Engineering1980，6，2： | 1 |
| 15 | Reversal of compromised bond- ing in bleached enamel 显示文摘 | Lai S C Tay F R Cheung G S | 2002 | J Dent Res2002，81，7： | 1 |
| 16 | The effectiveness of educational technology applications for enhancing mathematics achievement in K-12 classrooms: A meta-analysis显示文摘 | Cheung A C K Slavin R E | 2013 | Educational Research Review2013，9，： | 1 |
| 17 | Formatiom and intracellular localization of hepatitis C virus envelope glycoprotein complexes expressed by reeombinant vaccinia an aindbis viruses显示文摘 | DubissunJ Hsu H H Cheung R C | 1994 | Virol1994，68，10： | 1 |
| 18 | The impact of electronic word-of-mouth communication: a literature analysis and integrative model显示文摘 | Cheung C M K Thadani D R | 2012 | Decision Support Systems2012，54，1： | 1 |
| 19 | Immobilized metal ion affini- ty chromatography: a review on its applications 显示文摘 | Cheung R C F Wong J H Ng T B | 2012 | Applied Microbiology and Biotechnology2012，96，14： | 1 |
| 20 | Mechanical Behavior of CaCO3 Particulate-filled β-Crystalline Phase Polypropylene Composites显示文摘 | Tjong S C Li R K Y Cheung T | 1997 | Polym Eng Sci1997，37，1： | 1 |
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