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| 1 | Gastrointestinal imaging-practical magnetic resonance imaging approach显示文摘Over the past two decades, advances in cross-sectionalimaging such as computed tomography and magneticresonance imaging(MRI) have dramatically changed theconcept of gastrointestinal imaging. MR is playing anincreasing role in the evaluation of gastrointestinal disorders. MRI combines the advantages of excellent soft-tissue contrast, noninvasiveness, functional informationand lack of ionizing radiation. Furthermore, recent developments of MRI have led to improved spatial and temporal resolution as well as decreased motion artifacts. Inthis article we describe the technical aspects of gastroin-testinal MRI and present a practical approach for a well-known spectrum of gastrointestinal disease processes. | Baodong Liu Miguel Ramalho Mamdoh AlObaidy Kiran K Busireddy Ersan Altun Janaka Kalubowila Richard C Semelka | 2014 | World Journal of Radiology2014，6，8： | 11 |
| 2 | Precontoured buttress plate vs reconstruction plate for acetabulum posterior wall fractures: A biomechanical study显示文摘BACKGROUND The purpose of open reduction and internal fixation of acetabulum posterior wall fractures is to restore anatomical structure and stability of the hip joint, in order to start weight bearing as soon as possible and prevent hip arthrosis; restoration of the anatomy should preserve function of the joint as well. Although 'special shaped precontoured plates' have been developed in recent years for surgical treatment of this region, studies comparing the traditional plates with the newly designed precontoured plates are lacking.AIM To evaluate the biomechanical properties of precontoured anatomic buttress and conventional curved reconstruction plates(CCRPs) for posterior wall acetabulum fracture treatment.METHODS Twelve pelvis models were created for testing plate treatment of fracture in the posterior wall of the acetabulum. These 12 pelvis models were used to create 24 hemipelvis models(experimental) by cutting from the sagittal plane and passing over the center of gravity, after which the posterior wall acetabular fractures(of similar type and size) were created. In these experimental models, the right acetabulum was fixed with a 5-hole CCRP, while the left was fixed with a precontoured anatomic buttress plate(PABP). Samples were placed through thetest device and were subjected to static load testing, with a constant testing velocity of 2 mm/min until the load reached 2.3 kN or the acetabular fixation failed. Dynamic tests were also performed with sinusoidal wave load, with a maximal load of 2.3 kN and a load ratio of 0.1.RESULTS The average stiffness values were 460.83 ± 95.47 N/mm for the PABP and 291.99± 118.58 N/mm for the 5-hole CCRP. The precontoured anatomic acetabulum buttress plates had significantly higher rigidity than the CCRPs(P = 0.022). There was a statistically significant difference between the unloaded and 2.3 kN-loaded values of AL(posterosuperior fracture line vertical to the ground surface) and CL(posteroinferior fracture line vertical to the ground surface) parameters for both the PABPs and the 5-hole CCRPs(P = 0.036 and P = 0.045, respectively).According to the static tests, the amount of total displacement was significantly less in the PABPs than in the CCRPs. Comparative analysis of the displacement in the BL(posterior wall fracture line horizontal to the ground) parameter yielded no statistically significant differences between the PABP and the 5-hole CCRPs(P= 0.261).CONCLUSION PABP provides more stable fixation in acetabulum posterior wall fractures than5-hole CCRP, allowing for proximal or distal fracture line screw application without reshaping. | Güray Altun Gürsel Saka Teyfik Demir Fatma Kübra Erbay Elibol Mehmet Or?un Polat | 2019 | World Journal of Orthopedics2019，10，5： | 3 |
| 3 | Stable isotope analysis reveals relative influences of seasonal hydrologic variation and impoundment on assimilation of primary production sources by fish in the upper Yeslhrmask River, Turke 显示文摘 | Kaymak N Winemiller K O Akin S Altuner Z Pola F Dal T | 2015 | Hydrobiologia2015，753，1： | 1 |
| 4 | Comparison of induced polarization controlled source audio fre- quency magmetotelluric methods {or massive chalcopyrite ex- ploration in a volcano area显示文摘 | Basokur A T Rasmussen Kaya T M Altun Y and Aktas K | 1997 | Geophysics1997，62，4： | 1 |
| 5 | Anti - nociceptive, analgesic and pathohistological effects of intrathecal dexmedetomidine and bupivacaine in rats 显示文摘 | ERDIVANLI B ALTUN M SEZEN O K | 2013 | Rev Bras Anestesio12013，63，2： | 1 |
| 6 | Ubiquitin-spe-cific Protease 19 (USP19) Regulates Hypoxia-inducibleFactor la (HIF-la) during Hypoxia 显示文摘 | ALTUN M ZHAO B VELASCO K | 2012 | J Biol Chem2012，287，3： | 1 |
| 7 | The effect of fly ash and limestone fillers on the viscosity and compressive strength of self-compacting repair mortars 显示文摘 | FELEKOGLU B TOSUN K BARADAN B ALTUN A UYULGAN B | 2006 | Cement and Concrete Research2006，36，9： | 1 |
| 8 | Vibrational and thermal studies of ( M : Zn^2+ , Cd^2+ and Hg^2+ ) complexes显示文摘 | Golcuk K Altun A Somer M | 2005 | Vibrational Spectroscopy2005，39，1： | 1 |
| 9 | Thermal, vibrational and EPR studies of Cu(Ⅱ) bromide bis( p - methylaniline) and bis ( m - methylaniline) complexes 显示文摘 | Goleuk K Altun A Guner S | 2004 | Spectrochimica Aeta Part A2004，60，12： | 1 |
| 10 | Comparative Study on Classifying Human Activities with Miniature Inertial and Magnetic Sensors显示文摘 | Altun K Barshan B Tuncel O | 2010 | Journal of Pattern Recognition2010，43，10： | 1 |
| 11 | Corrigendum to 'Generalized contractions on partial metric spaces' 显示文摘 | Altun I Sadarangani K | 2011 | Topoi Appl2011，158，13： | 1 |
| 12 | Comparative study on classifying human activities with miniature inertial and magnetic sensors显示文摘 | Altun K Barshan B Tuncel O | 2010 | Pattern Recognition2010，43，10： | 1 |
| 13 | Comparison of induced-polarization and controlledsource audio-magneto tellurics methods for massive chalcopyrite exploration in a volcano area 显示文摘 | Basokur A T Rasmussen Kaya T M Altun Y and Aktas K | 1997 | Geophysics1997，62，4： | 1 |
| 14 | Effects of steel fiber addition on mechanical properties of concrete and RC beams 显示文摘 | ALTUN F HAKTANIR T ARI K | 2007 | Construction and Building Materials2007，21，： | 1 |
| 15 | Ubiquitin-specific protease 19(USP19) regulates hypoxia-inducible factor lalpha (HIF-lalpha) during hypoxia显示文摘 | Altun M Zhao B Velasco K | 2012 | J Biol Chem2012，287，3： | 1 |
| 16 | Comparison of induced-polarisation and controlled source audio-magnetotelluric methods for massive chalcopyrite exploration in a volcanic area显示文摘 | Basokur A T Rasmussen T M Kaya C Altun Y Aktas K | 1997 | Geophysics1997，62，6： | 1 |
| 17 | Corrigendum to 'Generalized contractions on partial metric spaces'显示文摘 | Altun I Sadarangani K | | 0，，： | 1 |
| 18 | Ubiquitin- specific protease 19 regulates hypoxia - inducible fac- tor 1alpha (HIF - lalpha) during hypoxia 显示文摘 | Altun M Zhao B Velasco K | 2012 | Biol Chem2012，287，： | 1 |
| 19 | Comparison of induced polarization and controlled source audio magneto telluric methods for massive chalcopyrite exploration in a volcano area 显示文摘 | Basokur A T Rasmussen Kaya T M Altun Yand Aktas K | 1997 | Geophysics1997，62，4： | 1 |
| 20 | Classifying human leg motions with uniaxial piezoelectric gyro- scopes显示文摘 | TUNCEL O ALTUN K BARSHAN B | 2009 | Sensors2009，9，11： | 1 |
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