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1707篇 您的检索式:作者名="Stafford"
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1Free-breathing radial volumetric interpolated breathhold examination vs breath-hold cartesian volumetric interpolated breath-hold examination magnetic resonance imaging of the liver at 1.5T显示文摘AIM: To compare breath-hold cartesian volumetric interpolated breath-hold examination(cVIBE) and freebreathing radial VIBE(rVIBE) and determine whether rVIBE could replace cVIBE in routine liver magnetic resonance imaging(MRI).METHODS: In this prospective study, 15 consecutive patients scheduled for routine MRI of the abdomen underwent pre- and post-contrast breath-hold cVIBE imaging(19 s acquisition time) and free-breathing rVIBE imaging(111 s acquisition time) on a 1.5T Siemens scanner. Three radiologists with 2, 4, and 8 years post-fellowship experience in abdominal imaging evaluated all images. The radiologists were blinded to the sequence types, which were presented in a random order for each patient. For each sequence, the radiologists scored the cVIBE and rVIBE images for liver edge sharpness, hepatic vessel clarity, presence of artifacts, lesion conspicuity, fat saturation, and overall image quality using a five-point scale. RESULTS: Compared to rVIBE, cVIBE yielded significantly(P < 0.001) higher scores for liver edge sharpness(mean score, 3.87 vs 3.37), hepatic-vessel clarity(3.71 vs 3.18), artifacts(3.74 vs 3.06), lesion conspicuity(3.81 vs 3.2), and overall image quality(3.91 vs 3.24). cVIBE and rVIBE did not significantly differ in quality of fat saturation(4.12 vs 4.03, P = 0.17). The inter-observer variability with respect to differences between rVIBE and cVIBE scores was close to zero compared to random error and inter-patient variation. Quality of rVIBE images was rated as acceptable for all parameters. CONCLUSION: rVIBE cannot replace cVIBE in routine liver MRI. At 1.5T, free-breathing rVIBE yields acceptable, although slightly inferior image quality compared to breath-hold cVIBE.Sireesha Yedururi HyunSeon C Kang Wei Wei Nicolaus A Wagner-Bartak Leonardo P Marcal R Jason Stafford Brandy J Willis Janio Szklaruk 2016World Journal of Radiology2016,8,7:9
2太阳能发电面临的挑战与机遇(英文)显示文摘在所有可再生能源中,光伏太阳能只占一小部分,然而在早期采用它的国家中,如日本和德国,却对全球工业体系起到了促进作用,对未来能源需求产生了意义深远的影响。讨论了光伏模块的当前成本和计划中的成本以及为了拓宽光伏太阳能的应用,材料科学能够为降低此成本壁垒而作出贡献的途径。文章对当前统辖市场的相对成熟的单晶硅光伏电池和有可能降低光伏模块成本的薄膜光伏电池进行了比较,指出薄膜光伏电池的转换效率需要提高而且应该能够进行大规模生产。文中给出了当前碲化镉光伏电池材料研究的一些实例,并对它们应如何在将来进行改进提出了建议。Stuart James Curzon Irvine Anne Stafford 2007电网技术2007,31,20:6
3Tackling China's Noncommunicable Diseases: Shared Origins, Costly Consequences and the Need for Actior显示文摘Noncommunicable diseases (NCDs) have become the leading causes of death worldwide. As a concerning example, China's NCD prevalence is accelerating. As elsewhere, hypertension, diabetes, heart diseases, stroke, and obesity are the major contributors to this increasing trend. A common set of preceding risk factors is responsible for these different conditions, including physical inactivity, unhealthy eating habits, altered patterns of sleep, environmental pollution, and tobacco and alcohol abuse.Yan Min Li-Xin Jiang Li-Jing L Yan Lin-Hong Wang Sanjay Basu Yang-Feng Wu Randall S Stafford 2015Chinese Medical Journal2015,,6:2
4The Systemic Inflammatory Response to Cardiopulmonary Bypass: Pathophysiological, Therapeutic, and Pharmacological Considerations显示文摘Richard I. Hall Mark Stafford Smith Graeme Rocker 1997Anesthesia & Analgesia1997,,4:2
5MRI in stress fracture显示文摘 Rosenthal DI Gebhardt MC 1986AJR1986,147,3:1
6Results of repeated gamma knife radio-surgery for medically unresponsive trigeminal neuralgia 显示文摘 Foote RL Stafford SL 2000J Neurosurg2000,93,:1
7The rationale and technique of stagedvolume arteriovenous malformation radiosurgery显示文摘 Kline RW Stafford SL 2000Int J Radiat Oncol Biol Phys2000,48,3:1
8Parameter study of outrigger-braced tall building structures 显示文摘Smith Bryan Stafford Irawan Salim 1981Journal of the Structural Division1981,107,10:1
9Identification and characteriza- tion of mouse metastasis-suppressor KISS1 and its G-protein- coupled receptor显示文摘Stafford L J Xia C Ma W 2002Cancer Res2002,62,9:1
10Ion Trap Mass Spectrometry: A Personal Perspective显示文摘Stafford G 2002J Am Soc Mass spectrom2002,13,:1
113% follow-up of 1 022 valve replacement显示文摘O'Brien MF Harrocks S Stafford EG The homograft aortic valve:A 29-year 99 2001J Heart Valve Dis2001,10,3:1
12Rapid screening for 100 basic drugs and metabolites in urine using cation exchange solid-phase extraction and high-performance liquid chromatography with diode array detection显示文摘Logan BK Stafford DT Tebbett IR 1990J Anal Toxicol1990,14,3:1
13The rationale and t echnique of staged-volume arteriovenous malformation radiosurgery显示文摘POLLOCK BE KLINE RW STAFFORD SL 2000Int J R adiat Oncol Biol Phys2000,48,3:1
14Pharmacokinetics and tolerability of the orally active selective epidermal growth factor receptor tyrosine kinase inhibitor ZD1839in healthy volunteers显示文摘Swaisland H Laight A Stafford L 2001Clin Pharmacokinet2001,40,2:1
15Long-term treatment with the dipeptidyl peptidase IV Inhibitor P32/98 causes sustained improvements in glucose tolerance, insulin sensitivity, hypefinsulinemia, and β-cell glucose responsiveness in VDF (fa/fa) Zucker rats 显示文摘Pospisilik JA Stafford SG 2002Diabetes2002,51,:1
16Reamer irrigator aspirator bone graft and bimasquelet technique for segmental bone defect nonunions:a review of 25 cases显示文摘Stafford PR Norris BL 2010Injury2010,2,:1
17Update on coxsack- ievirus B3 myocarditis 显示文摘Fairweather D Stafford KA Sung YK 2012Curr Opin Rheumatol2012,24,:1
18Electrophysiological indi- ces of emotion processing during retrieval of autobiographical mem- ories by school-age children显示文摘Bauer P J Stafford Stevens J Jackson FL 2012Cogn Affect Behav Neurosci2012,12,1:1
19Use of beta-blockers in patients with an implantable cardioverter defibrillator显示文摘LaPointe NM Stafford JA Pappas PA 0,,07:1
20Intrapulmo- nary arteries respond to serotonin and adenosine triphos- phate in broiler chickens susceptible to idiopathic pulmo- nary arterial hypertension显示文摘Kluess HA Stafford J Evanson KW 2012Poult Sci2012,91,6:1
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