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26篇 您的检索式:作者名="Beard Z"
    题名 作者 年代 出处 被引量
1Through-needle all-optical ultrasound imaging in vivo: a preclinical swine study显示文摘High-frequency ultrasound imaging can provide exquisite visualizations of tissue to guide minimally invasive procedures.Here,we demonstrate that an all-optical ultrasound transducer,through which light guided by optical fibers is used to generate and receive ultrasound,is suitable for real-time invasive medical imaging in vivo.Broad-bandwidth ultrasound generation was achieved through the photoacoustic excitation of a multiwalled carbon nanotube-polydimethylsiloxane composite coating on the distal end of a 300-μm multi-mode optical fiber by a pulsed laser.The interrogation of a high-finesse Fabry–Pérot cavity on a single-mode optical fiber by a wavelength-tunable continuous-wave laser was applied for ultrasound reception.This transducer was integrated within a custom inner transseptal needle(diameter 1.08 mm;length 78 cm)that included a metallic septum to acoustically isolate the two optical fibers.The use of this needle within the beating heart of a pig provided unprecedented realtime views(50 Hz scan rate)of cardiac tissue(depth:2.5 cm;axial resolution:64μm)and revealed the critical anatomical structures required to safely perform a transseptal crossing:the right and left atrial walls,the right atrial appendage,and the limbus fossae ovalis.This new paradigm will allow ultrasound imaging to be integrated into a broad range of minimally invasive devices in different clinical contexts.Malcolm C Finlay Charles A Mosse Richard J Colchester Sacha Noimark Edward Z Zhang Sebastien Ourselin Paul C Beard Richard J Schilling Ivan P Parkin Ioannis Papakonstantinou Adrien E Desjardins 2017Light(Science & Applications)2017,6,1:6
2Genesis of durable catalyst for selective hydrodechlorination of CCl4 to CHCl3显示文摘Zhang Z C Beard B C 1998Appl Catnl A1998,174,1:1
3Iron deficiency:differential effects on monoamine transporters显示文摘 Dailey C Beard Z 2005Nutr Neurosci2005,8,1:1
4Genesis of durable catalyst for selective hydrodechlorination of CC14 to CHC13 显示文摘Zhang Z C Beard B C 1998Appl Catal A1998,174,:1
5DNA hypomethylation leads to elevated mutation rates显示文摘Chen R Z Pettersson V Beard L 1998Nature1998,395,:1
6Competition, cooperation, and optimization in multi-hop CSMA networks with correlated traffic 显示文摘SHI Z BEARD C C MITCHELL K 2012International Journal of Next-Generation Computing2012,3,3:1
7Genesis of durable catalyst for selective hydrodehaloge-nation of CC14 to CHCl3 显示文摘Zhang Z C Beard B C 1998App Catalysis A: General1998,174,:1
8Abso- lute calibration of an Ashtech Z-12T GPS receiver 显示文摘G Petit Z liang J White R Beard and E Powers 2001GPS Solutions2001,,4:1
9DNA hypomethylation leads to elevated mutationrates 显示文摘CHEN R Z PETTERSSON V BEARD C 1998Nature1998,395,6697:1
10Iron deficiency:differential effects on monoamine transporters显示文摘Burhans MS Dailey C Beard Z 2005Nutr Neurosci2005,8,1:1
11Genesis of durable catalyst for selective hydrodechlorination ofCCl4 to CHCl3显示文摘ZHANG Z C BEARD B C 1998Appl Catal A1998,174,12:1
12Comparison of platelet activa- tion in platelet concentrates measured by flow cytometry or AD- VIA 2120显示文摘Beard MJ Jeewa Z Bashir S 2011Vox Sang2011,101,2:1
13Iron deficiency: differ- ential effects on monoamine transporters显示文摘Burhans MS Dailey C Beard Z 2005Nutr Neuros- ci2005,8,1:1
14Genesis of durable catalyst for selective hydrodechlorination of CCl4 to CHCl3 显示文摘Zhang Z C Beard B C 1998Appl Catal A: General1998,174,9:1
15Genesis of durable catalyst for selective hydrodechlorination of CCl-4 to CHCl-3显示文摘Zhang Z C Beard B C 1998Appl Catal1998,174,1:1
16Plasma biomarkers associated with ALS and their relationship to iron homeostasis显示文摘Mitchell RM Simmons Z Beard JL 0,,:1
17Agglomeration of Pt particles in the presence of chlorides显示文摘Zhang Z C Beard BC 1999 1999Appl Catal A1999,188,:1
18Comparison of platelet activation in platelet concentrates measured by flow cy- tometry or ADVIA 2120显示文摘Beard MJ Jeewa Z Bashir S etal 2011Vox Sang2011,101,2:1
19]DNA hypomethyla- tion leads to elevated mutation rates 显示文摘CHEN R Z PETI'ERSSON U BEARD C 1998Nature1998,395,6697:1
20Agglomeration of Pt particles in the presence of chlorides 显示文摘Zhang Z C Beard B C 1999Applied Catalysis A General1999,188,:1
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