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| 1 | Evaluation of Doppler-ultrasonography in the diagnosis of transjugular intrahepatic portosystemic shunt dysfunction: A prospective study显示文摘AIM To prospectively evaluate the performance of Dopplerultrasonography(US) for the detection of transjugular intrahepatic portosystemic shunt(TIPS) dysfunction within a multicenter cohort of cirrhotic patients.METHODS This study was conducted in 10 french teaching hospitals. After TIPS insertion, angiography and liver Doppler-US were carried out every six months to detect dysfunction(defined by a portosystemic gradient ≥ 12 mm Hg and/or a stent stenosis ≥ 50%). The association between ultrasonographic signs and dysfunction was studied by logistic random-effects models, and the diagnostic performance of each Doppler criterion was estimated by the bootstrap method. This study was approved by the ethics committee of Tours.RESULTS Two hundred and eighteen pairs of examinations performed on 87 cirrhotic patients were analyzed. Variables significantly associated with dysfunction were: The speed of flow in the portal vein(P = 0.008), the reversal of flow in the right(P = 0.038) and left(P = 0.049) portal branch, the loss of modulation of portal flow by the right atrium(P = 0.0005), ascites(P = 0.001) and the overall impression of the operator(P = 0.0001). The diagnostic performances of these variables were low; sensitivity was < 58% and negative predictive value was < 73%. Therefore, dysfunction cannot be ruled out from Doppler-US. CONCLUSION The performance of Doppler-US for the detection of TIPS dysfunction is poor compared to angiography. New tools are needed to improve diagnosis of TIPS dysfunction. | Charlotte Nicolas Amelie Le Gouge Louis d’Alteroche Jean Ayoub Monica Georgescu Vincent Vidal Denis Castaing Jean-Pierre Cercueil Patrick Chevallier Jerome Roumy Herve Trillaud Louis Boyer Vincent Le Pennec Christophe Perret Bruno Giraudeau Jean-Marc Perarnau STIC-TIPS group | 2017 | World Journal of Hepatology2017，9，27： | 6 |
| 2 | 2060年中国实现碳中和所面临的挑战:现状与展望显示文摘China’s high ambitions to reach peak CO_(2) emissions by 2030 and carbon neutrality by 2060 make carbon mitigation an urgent issue with widespread societal consequences.To develop an achievable roadmap and an effective portfolio of climate policies,it is essential that a clear picture of the magnitude and uncertainty of China’s current carbon balance is available,at both national and regional levels. | 陈报章 陈发虎 Philippe Ciais 张慧芳 吕洪刚 汪涛 Frédéric Chevallier 刘竹 袁文平 Wouter Peters | 2022 | Science Bulletin2022，67，20： | 3 |
| 3 | Developing a draft schedule using templates and rules 显示文摘 | Nicola J Chevallier Alan D Russell | 2001 | Journal of Construction Engineer- ing and Management2001，127，5： | 1 |
| 4 | Automated schedule gen- eration 显示文摘 | Chevallier N Russell A D | 1998 | Canadian Journal of Civil Engineering1998，25，6： | 1 |
| 5 | Accelerating Universes with Scaling Dark Matter 显示文摘 | CHEVALLIER M POLARSKI D | 2001 | Int J Mod Phys D2001，10，： | 1 |
| 6 | Plasma funetionalization of poly(vinyl alcohol) hydrogel for cell adhesion enhancement 显示文摘 | IN() J M CHEVALLIER P LETOURNEUR D | 2013 | Biomatter2013，3，25： | 1 |
| 7 | Accelerating universes with scaling dark matter显示文摘 | Chevallier M Polarski D | 2001 | International Journal of Modern Physics D2001，10，： | 1 |
| 8 | Invitro biological performances of phosphorylcholine-grafted ePTFE prostheses through RFGD plasma tech-niques显示文摘 | Chevallier P Janvier R Mantovani D Laroche G | 2005 | Macromol Biosci2005，5，： | 1 |
| 9 | Nonlinear stochastic drill-string vibrations显示文摘 | Spanos P D Chevallier A M Politis N P | 2002 | Journal of Vibration and Acoustics2002，124，4： | 1 |
| 10 | Development of a rapid assimilable organic carbon method for water 显示文摘 | Le chevallier MW et d | 1993 | Appl Envir Micro1993，59，5： | 1 |
| 11 | Analysis of composite struct-ure and primordial wood remains in petrified wood显示文摘 | Nowak J Nowak D Chevallier P | 2007 | Applied Spectroscopy2007，61，8： | 1 |
| 12 | Complication of Gynecologic laparoscopic surgery - a French multicenter collaborative study ( letter) 显示文摘 | Querleu D Chaprouc Chevallier L | 1993 | N Engl J Med1993，328，： | 1 |
| 13 | Varicocele repair: does it still have a role in infertility treatment? 显示文摘 | Nevoux P Mitchell V Chevallier D | 2011 | Curt Opin Obstet Gynecol2011，23，3： | 1 |
| 14 | Analysis of composite structure and primordial wood remains in petrified wood 显示文摘 | Nowak J Nowak D Chevallier P | 2007 | Applied Spectroscopy2007，61，8： | 1 |
| 15 | Isolated granulocyticsarcoma of the pancreas:A tricky diagnostic for primary pancreatic extramedullary acute myeloid leukemia显示文摘 | Messager M Amielh D Chevallier C | | 0，，10： | 1 |
| 16 | al Update on cryptorchid ism: endocrine, environmental and therapeutic aspects显示文摘 | Brueker F Pointis G Chevallier D et | 2003 | Jour nal of Endocrinol Investigation2003，26，6： | 1 |
| 17 | MR monitoring of tumor thermal therapy显示文摘 | Germain D Chevallier P Laureent A | 2001 | Magn Reson Mater Phy2001，13，1： | 1 |
| 18 | A new cytotoxic and tubulin-interactive milnamide derivative from a marine sponge Cymbastela sp显示文摘 | Chevallier C Richardson A D Edler M C | 2003 | Org Lett2003，5，20： | 1 |
| 19 | Update on cryptorchidism: endocrine, environmental and therapeutic aspects显示文摘 | Brucker-Davis F Pointis G Chevallier D | 2003 | J Endocrinol Invest2003，26，6： | 1 |
| 20 | MR monitoring of laser-induced lesions of the liver in vivo in a low-field open magnet: temperature mapping and lesion size prediction显示文摘 | Germain D Chevallier P Laurent A | 2001 | J Magn Reson Imaging2001，13，1： | 1 |
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