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76篇 您的检索式:作者名="Lewandowski A J"
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1Radioembolization for the treatment of unresectable hepatocellular carcinoma:A clinical review显示文摘Hepatocellular carcinoma(HCC)is the sixth most common cancer in the world.The majority of patients with HCC present with unresectable disease.These patients have historically had limited treatment options secondary to HCC demonstrating chemoresistance to the currently available systemic therapies.Additionally, normal liver parenchyma has shown intolerance to tumoricidal radiation doses,limiting the use of external beam radiation.Because of these limitations,novel percutaneous liver-directed therapies have emerged. The targeted infusion of radioactive microspheres (radioembolization)represents one such therapy. Radioembolization is a minimally invasive transcatheter therapy through which radioactive microspheres are infused into the hepatic arteries that supply tumor. Once infused,these microspheres traverse the hepatic vascular plexus and selectively implant within the tumor arterioles.Embedded within the arterioles, the 90Y impregnated microspheres emit high energy and low penetrating radiation doses selectively to the tumor.Radioembolization has recently shown promise for the treatment of patients with unresectable HCC. The objective of this review article is to highlight twocurrently available radioembolic devices(90Y,188Rh)and provide the reader with a recent review of the literature.Saad M Ibrahim Robert J Lewandowski Kent T Sato Vanessa L Gates Laura Kulik Mary F Mulcahy Robert K Ryu Reed A Omary Riad Salem 2008World Journal of Gastroenterology2008,14,11:14
2Diffusion-weighted magnetic resonance imaging to predict response of hepatocellular carcinoma to chemoembolization显示文摘AIM: To investigate whether intra-procedural diffusion- weighted magnetic resonance imaging can predict response of hepatocellular carcinoma (HCC) during trans- catheter arterial chemoembolization (TACE). METHODS: Sixteen patients (15 male), aged 59 ±11 years (range: 42-81 years) underwent a total of 21 separate treatments for unresectable HCC in a hybrid magnetic resonance/interventional radiology suite. Ana- tomical imaging and diffusion-weighted imaging (b = 0, 500 s/mm2) were performed on a 1.5-T unit. Tumor enhancement and apparent diffusion coefficient (ADC, mm2/s) values were assessed immediately before and at 1 and 3 mo after TACE. We calculated the percent change (PC) in ADC values at all time points. We compared follow-up ADC values to baseline values using a paired t test (α = 0.05). RESULTS: The intra-procedural sensitivity, specificity, and positive and negative predictive values (%) for detecting a complete or partial 1-mo tumor response using ADC PC thresholds of ±5%, ±10%, and ±15% were 77, 67, 91, and 40; 54, 67, 88, and 25; and 46, 100, 100, and 30, respectively. There was no clear predictive value for the 3-mo follow-up. Compared to baseline, the immediate post-procedure and 1-mo mean ADC values both increased; the latter obtaining statistical significance (1.48 ± 0.29 mm2/s vs 1.65 ± 0.35 × 10-3 mm2/s, P < 0.014). CONCLUSION: Intra-procedural ADC changes of > 15% predicted 1-mo anatomical HCC response with the greatest accuracy, and can provide valuable feedback at the time of TACE.Johnathan C Chung Neel K Naik Robert J Lewandowski Mary F Mulcahy Laura M Kulik Kent T Sato Robert K Ryu Riad Salem Andrew C Larson Reed A Omary 2010World Journal of Gastroenterology2010,16,25:13
3Fatigue behavior of high-entropy alloys: A review显示文摘Fatigue failures cost approximately 4% of the United States' gross domestic product(GDP). The design of highly fatigue-resistant materials is always in demand. Different from conventional strategies of alloy design, high-entropy alloys(HEAs) are defined as materials with five or more principal elements, which could be solid solutions. This locally-disordered structure is expected to lead to unique fatigue-resistant properties. In this review, the studies of the fatigue behavior of HEAs during the last five years are summarized. The four-point-bending high-cycle fatigue coupled with statistical modelling, and the fatigue-crack-growth behavior of HEAs, are reviewed. The effects of sample defects and nanotwins-deformation mechanisms on four-point-bending high-cycle fatigue of HEAs are discussed in detail. The influence of stress ratio and temperature on fatigue-crack-growth characteristics of HEAs is also discussed. HEAs could exhibit comparable or greater fatigue properties, relative to conventional materials. Finally,the possible future work regarding the fatigue behavior of HEAs is suggested.CHEN PeiYong LEE Chanho WANG Shao-Yu SEIFI Mohsen LEWANDOWSKI John J DAHMEN Karin A JIA HaoLing XIE Xie CHEN BiLin YEH Jien-Wei TSAI Che-Wei YUAN Tao LIAW Peter K 2018Science China(Technological Sciences)2018,61,2:3
4Mechanical properties of bulk metallic glasses显示文摘YAVARI A R LEWANDOWSKI J J ECKERT J 0,,8:1
5Laminated Nanostrueture Composites with Improved Bend Ductility and Toughness显示文摘Hassan H A Lewandowski J J 2009Scripta Materialia2009,61,:1
6Biomass production potentials in Central and Eastern Europe under different scenarios显示文摘Van DAM J FAAIJ A P C LEWANDOWSKI L FISCHER G 2007Biomass Bioenergy2007,31,6:1
7Microstructural effects on the cleavage fracture stress of fully pearlitic eutectoid steel显示文摘Lewandowski J J Thompson A W 1986Metallurgical Transaction1986,17,8:1
8Genotypic variation in cold tolerance influences the yield of Miscanthus 显示文摘Farrell A D Clifton-Brown J C Lewandowski I 2006Annals of applied biology2006,149,3:1
9Temperature Rise at Shear Bands in Metallic Glasses显示文摘Lewandowski J J Greer A L 2006Nature Materials2006,,5:1
10Intrinsic plasticity or brittleness of metallic glasses显示文摘Lewandowski J J Wang W H Greer A L 2005Philosophical Magazine Letters2005,85,2:1
11Understanding the glass-forming ability Cu50Zr50 alloys in terms of a metastable euteetic显示文摘WANG W H LEWANDOWSKI J J GREER A L 2005Journal of Materials Research2005,20,9:1
12The Effect of the Prior Austenite Grain Size on the Ductility of Fully Pearlitic Eutectoid Steel显示文摘LEWANDOWSKI J J THOMPSON A W 1986Metallurgical and Materials Transactions A1986,17,3:1
13Microstructural Effects on the Cleavage Fracture Stress of Fully Pearlitic Eutectoid Steels显示文摘LEWANDOWSKI J J THOMPSON A W 1986Metallurgical and Materials Transactions A1986,17,10:1
14Tobacco mosaic virus inoculation inhibits wound-induced Jasmonic acid-mediated responses within but not between plants显示文摘Preston C A Lewandowski C Enyedi A J 1999Planta1999,209,:1
15Fate of organic micropollutants in the hyporheic zone of a eutrophic lowland stream: results of a preliminary field study 显示文摘Lewandowski J Putschew A Schwesig D 2011Science of the Total Environment2011,409,0:1
16Segregation to SiC/Al interfaces in Al based metal matrix composites 显示文摘 Hippsely C A Lewandowski J J 1990Scripta Metall Mater1990,25,:1
17Onset of variable-range hopping at ferromagnetic phase nucleation in amorphous paramagnetic LaSrMnO films显示文摘OKUNEV V D SAMOILENKO Z A PAFOMOV N N D'YACHENKO T A PLEHOV A L SZYMCZAK R BARAN M SZYMCZAK H LEWANDOWSKI S J 2005Phys Lett A2005,346,:1
18Intrinsic and extrinsic toughening of metallic glasses显示文摘LEWANDOWSKI J J SHAZLY M SHAMIMI N A 2006Scripta Materialia2006,54,:1
19The Role of Biomineralization in microbiologically influenced corrosion显示文摘Little B J Wagner P A Lewandowski Z 1998Corrosion1998,294,:1
20Microstructural effects on the cleavage fracture stress of fully pearlitic eutectoid steel 显示文摘 Thompson A W 1986Metall Trans1986,17,8:1
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