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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 | A new wavelength-routed photonic packet buffer combining traveling delay lines with delay-line loops显示文摘 | W D Zhong R S Tucker | 2001 | IEEE Journal of Lightwave Technology2001，19，8： | 2 |
| 3 | Ages of ultrahigh pressure metamorphism and protolith orthogneisses from the eastern Dabie Shan: U/Pb zircon geochronology显示文摘 | Xue F Tucker R D | 1997 | Earth Planetary Science Letters1997，151，： | 1 |
| 4 | Post-collisional magmatism in the central East African orogen: The Maevarano suite of north Madagascm显示文摘 | Goodenough K M Thomas R J De Waele B Key R M Schofield D I Bauer W Tucker R D Kafahatelo J M Rabrimanana M Ralison A V Randriamananjma T | 2010 | Lithos2010，116，12： | 1 |
| 5 | increased plant growth in the northern high latitudes from 1981 to 1991显示文摘 | R B Myneni C D Keeling C J Tucker G Asrar and R R Nemani | 1997 | Nature1997，386，： | 1 |
| 6 | Increased plant growth in the northern high latitudes from 1981to 1991 显示文摘 | Myneni R B Keeling C D Tucker C J | 1997 | Nature1997，386，： | 1 |
| 7 | Tin-free radical cyclization reactions initiated by visible light photoredox catalysis 显示文摘 | TUCKER J W NGUYEN J D NARAYANAM J M R | 2010 | Chemical Communications2010，46，： | 1 |
| 8 | The physiological regulation of pacing strategy during exercise: a critical review显示文摘 | Tucker R Noakes T D | 2009 | Br d Sports Med2009，43，6： | 1 |
| 9 | Photonic Packet Switching:an Overview显示文摘 | Tucker R S Wen Z D | 1999 | IEICE Trons on Commun1999，32，： | 1 |
| 10 | Increased plant growth in the northern high latitudes from 1981 to i991 显示文摘 | MYNENI R B KEELING C D TUCKER C J etal | 1997 | Nature1997，386，： | 1 |
| 11 | The interaction between electrosurgical generators, endoscopic electrodes,and-tissue 显示文摘 | TUCKER R D SIEVERT C E KRAMOLOWSKY E V | 1992 | J Gastrointest Endosc1992，38，2： | 1 |
| 12 | Increased activity on northern vegetation inferred from satellite-based vegetation index, atmospheric carbon dioxide, and temperature data显示文摘 | Myneni R R Keeling C D Tucker C J Asrar G Nemani R R | 1997 | Nature1997，386，： | 1 |
| 13 | Organizational le- gitimacy and the liability of newness显示文摘 | Singh J V Tucker D J House R J | 1986 | Administrative Science Quarterly1986，31，2： | 1 |
| 14 | Itraconazote therapy for nonmeningeal coccidioidomycosis: clinical and lahoratory observations 显示文摘 | Tucker R M Denning D W Arathoon E G | 1990 | J Am Acad Dermatol1990，23，32： | 1 |
| 15 | Human papillomavirus(HPV) DNA copy number is dependent on grade of cervical disease and HPV type显示文摘 | Swan D C Tucker R A Tortolero-Luna G | 1999 | J Clin Microbiol1999，37，： | 1 |
| 16 | A quality map of transfer printing显示文摘 | TUCKER M B HINES D R LI Teng | 2009 | Journal of Applied Physics2009，106，10： | 1 |
| 17 | A study of the effect of PP- g-MA and SEBS-g-MA on the mechanical and morphological properties of polypropylene/nylon 6 blends显示文摘 | Tucker J D Lee S Einspom R L | 2000 | Polym Eng Sci2000，40，12： | 1 |
| 18 | Effect of multiple transverse modes in self-mixing sensors based on vertical-cavity surface-emitting lasers 显示文摘 | Tucker John R Rakic Aleksandra D O'Brien Christopher J | 2007 | Applied Optics(S0003-6935)2007，46，4： | 1 |
| 19 | Long-term morbidity after fetal endoscopic surgery for severe twin-to-twin transfusion syndrome显示文摘 | Kowitt B Tucker R Watson-Smith D | 2012 | J Pediatr Surg2012，47，1： | 1 |
| 20 | New U/Pb zircon dates for Neoproterozoic Ghubrah glaciation and for the top of the Huqf Supergroup, Oman 显示文摘 | BRASIER M D MCCARRON G TUCKER R E | | Geology0，28，2： | 1 |
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