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21篇 您的检索式:作者名="MARCAL P"
    题名 作者 年代 出处 被引量
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
2Intraoperative abdominal ultrasound in oncologic imaging显示文摘Significant advances in ultrasound technology have created new opportunities for its use in oncologic imaging. The advent of new transducers with focal beam technology and higher frequency has solidified the role of intraoperative sonography (IOUS) as an invaluable imaging modality in oncologic surgery of the liver, kidneys and pancreas. The ability to detect and characterize small lesions and the precise intraoperative localization of such tumors is essential for adequate surgical planning in segmental or lobar hepatic resections, metastasectomy, nephron-sparing surgery, and partial pancreatectomy. Also, diagnostic characterization of small equivocal lesions deemed indeterminate by conventional preoperative imaging such as multidetector computed tomography or magnetic resonance imaging, has become an important application of IOUS. This article will review the current applications of IOUS in the liver, kidneys and pancreas.Leonardo P Marcal Madhavi Patnana Priya Bhosale Deepak G Bedi 2013World Journal of Radiology2013,5,3:3
3Obesity inducedby high-fat diet promotes insulin resistance in the ovary 显示文摘Akamine E H Marcal A C Camporez J P 2010JEndocrinol2010,206,1:1
4Elastic-plastic analysis of two dimensional stress systems by the finite element method 显示文摘Marcal P V King I P 1967Int J Mech Sci1967,19,9:1
5A finite element formula- tion for problems of large strain and large displacement显示文摘Hibbitt H D Marcal P V Rice J R 1970In- ternational Journal of Solids and Structure1970,,6:1
6A finite element formulation for problems of large strain and large displacement显示文摘Hibbit H D Marcal P V Rice J R 1970Int J Solids Strut1970,6,:1
7Numberical thermo-mechanical model for the welding and subsequent loading of a fabricated structure显示文摘Hibbit H D Marcal P V A 1973Comput Struct1973,13,9:1
8A finite element formulation for problems of large strain and large displacement显示文摘Hitbitt H D Marcal P V and Rice J R 1970International Journal of Solids and Structures1970,,6:1
9Elastic-plastic analysis of two- dimensional stress systems by the finite element method显示文摘Marcal P V King I P 1967International Journal of Mechanical Sciences1967,9,3:1
10A comparative study of numerical methods of elastic-plastic analysis显示文摘Marcal P V 1968AIAA Journal1968,6,1:1
11Elastic-plastic Analysis of Two Dimensional Stress Systems by the Finite Element Method显示文摘MARCAL P V KING I P 1967Mech Sci1967,9,:1
12Study of the profile of polycyclic aromatic hydrocarbons in atmospheric particles(PM10)using multivariate methods显示文摘JULIANA B D ELBAC T MARCAL P 2005Atmospheric Environmental2005,39,35:1
13Finite element analysis of nonlinear structures显示文摘MALLETT R H MARCAL P V 1968Journal of Structural Division ASCE1968,94,:1
14Elastic-plastic analysis of two-dimensional stress systems by the finite element meth- od 显示文摘MARCAL P V KING I P 1967International Journal of Mechanical Sciences1967,9,3:1
15CYP86A33-targeted gene silencing in potato tuber alters suberin composition, distorts suberin lamellae, and impairs the periderm' s water barrier function 显示文摘Olga S Marcal S Carolin H Vincent S Franck P Rchus F Lukas S Salome' P Marisa M Merce' F 2009Plant Physiology2009,149,2:1
16Finite element analysis of the steel rolling process 显示文摘Kanzawa M Marcal P V 1978Application of numerical methods to forming processes1978,28,:1
17A method of optimal plastic design 显示文摘 Prager W 1964J De Mechanique1964,3,4:1
18A finite element formulation for problems of large strain and large displacement显示文摘Hibbit H D marcal P V riceJ R 0,,06:1
19A finite element formulation for problems of large strain and large displacement显示文摘HibbittHD Marcal P V Rice J R 1970International Journal of Solids and Structures1970,6,8:1
20Small scale yielding near a crack in plane strain: A finite element analysis 显示文摘Levy N Marcal P : Ostergren W J Rice J R 1971International Journal of Fracture1971,7,2:1
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