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公开(公告)号：US5327884A
公开(公告)日：1994-07-12
申请号：US162921
申请日：1993-12-08
IPC分类号： G01R33/20 , A61B5/055 , A61B18/00 , A61B18/20 , A61B18/24 , A61B19/00 , A61N7/00 , A61N7/02 , G01R33/48 , G01R33/561
CPC分类号： A61N7/02 , A61B18/24 , G01R33/4804 , G01R33/561 , A61B2090/374 , G01R33/56308
摘要： Surgery is performed with a pulsed heat-producing device that selectively heats a region in a specific tissue within a patient destroying the tissue. The pulsed heat-producing device may be a coherent optical source that is guided by laser fiber to the tissue to be destroyed. In another embodiment, the pulsed heat-producing device is a focussed ultrasound transducer which concentrates ultrasonic energy at a focal point within the specific tissue. A magnetic resonance imaging system employing a real-time temperature-sensitive pulse sequence monitors the heated region of the tissue to provide temperature profiles allowing an operator to alter the position and size of the heated region.
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52.发明授权
公开(公告)号：US5204625A
公开(公告)日：1993-04-20
申请号：US631121
申请日：1990-12-20
CPC分类号： G01R33/56 , G01R33/5608
摘要： A three dimensional image of a human brain or other body structure is constructed using a single flow sensitive data array and a flow insensitive data array to generate the contrasts necessary to differentiate among stationary tissues and also between stationary tissues and flowing blood. A plurality of data points from this combined image data are identified to tissue types and used to segregate the remaining data by using a nearest neighbor process in which each data value takes the tissue type of its nearest neighbor data point.
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53.发明授权System and method for detecting internal structures contained within the interior region of a solid object 失效用于检测包含在固体物体的内部区域内的内部结构的系统和方法
公开(公告)号：US5166876A
公开(公告)日：1992-11-24
申请号：US641615
申请日：1991-01-16
IPC分类号： G06T17/00
CPC分类号： G06T17/00
摘要： In a method and apparatus for detecting and displaying arbitrary interior surfaces of a three-dimensional body from a regular array of values of at least one physical property in the interior of the body, the physical property measurements are made with systems such as computerized tomographic x-ray imaging, or magnetic resonance imaging. A recursive algorithm starts with a seed voxel in the surface of interest and continues to all adjacent voxels having a common face which is penetrated by the surface of interest. The common surface penetrations are derived from a look-up table which lists the adjacent voxels having a common penetrated face for each voxel index. The voxel index, in turn, is the string of binary digits representing the voxel vertices whose vertex values exceed the surface value of the surface of interest. The resulting list of voxels can be processed by conventional processors to display the surface of interest with greatly reduced interference from nearby, closely intermingled surfaces with the same or similar surface values.
摘要翻译： 在用于从身体内部的至少一种物理特性的规则数组的数组中检测和显示三维体的任意内表面的方法和装置中，物理特性测量是用诸如计算机断层X 射线成像或磁共振成像。 递归算法从感兴趣的表面中的种子体素开始，并且继续到具有由感兴趣的表面渗透的共同的面的所有相邻体素。 共同的表面穿透是从查找表中得出的，其列出了对于每个体素索引具有公共穿透面的相邻体素。 体素索引又是表示顶点值超过感兴趣表面的表面值的体素顶点的二进制数字串。 所得到的体素列表可以由常规处理器处理，以便以相同或相似的表面值从附近紧密混合的表面大大降低干扰来显示感兴趣的表面。
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54.发明授权
公开(公告)号：US4849697A
公开(公告)日：1989-07-18
申请号：US211612
申请日：1988-06-27
IPC分类号： A61B5/055 , G01R33/48 , G01R33/563
CPC分类号： G01R33/563
摘要： A metod for providing a three-dimensional nuclear magnetic resonance (NMR) flow-contrast angiograph of fluid flowing substantially only in a predetermined direction, with suppression of stationary material surrounding the fluid, uses the steps of: acquiring a first set of image data from NMR responses generated from a volume-to-be-imaged by a three-dimensional volume imaging sequence preceded by a saturation portion saturing nuclear spins in a volume adjacent to, and in the direction from which the desired flow will enter, the volume-to-be-imaged; acquiring a second set of image data from other NMR responses generated by the same volume imaging sequence, but devoid of any preceding saturating portion; and subtracting one of the first and second data sets from the other to generate a difference data set from which a final image is displayed. Advantageously, a 3DET volume imaging sequence is used, with bipolar flow-compensation used along both axes of flow encodation. The total first moment of all magnetic field gradient pulses, from volume selection tie to echo time, on each of the separate three Cartesian gradient axes, is nulled, with the total area (the amplitude-time integrated product) of the pulses being set substantially equal to zero alaong two of the three axes. The non-zero pulse area difference along the one selected non-readout axis is balanced by a rewind gardient pulse after completion of the response signal readout.
摘要翻译： 用于提供基本上仅在预定方向上流动的流体的三维核磁共振（NMR）流动对比度血管造影仪的组合，其中抑制流体周围的固定材料，采用以下步骤：从第一组图像数据 由通过三维体积成像序列产生的体积成像的NMR响应之前，饱和部分使饱和部分饱和在与期望流动进入的体积相邻的体积中，并且在期望流动进入的方向上的体积 - 成像; 从由相同体积成像序列产生但没有任何先前饱和部分的其他NMR响应获取第二组图像数据; 并且从另一个中减去第一和第二数据集中的一个，以产生显示最终图像的差分数据集。 有利地，使用3DET体积成像序列，双向流动补偿沿着两个流编码的轴使用。 在每个分离的三个笛卡尔梯度轴上，从体积选择连接到回波时间的所有磁场梯度脉冲的总第一时刻被置零，脉冲的总面积（振幅 - 时间积分乘积）被设定为大致 等于零alaong三轴中的两个。 沿着一个选择的非读出轴的非零脉冲区域差在完成响应信号读出之后通过回绕前进脉冲平衡。
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55.发明授权
公开(公告)号：US4729098A
公开(公告)日：1988-03-01
申请号：US741391
申请日：1985-06-05
CPC分类号： G06T19/003 , G06T2210/41
摘要： A method and apparatus for displaying three dimensional surface images includes the utilization of a case table for rapid retrieval of surface approximation information. Eight cubically adjacent data points associated with a given voxel element are compared with a predetermined threshold value or range to generate an eight bit vector. This eight bit vector is employed to rapidly produce vector lists of approximating surfaces. A non-linear interpolation operation is performed so as to more closely approximate the desired surface and to provide more accurate representations of vectors normal to the desired surface. The accurate representation of these normal directions provides means for accurately representing shading information on a display screen. The method and apparatus of the present invention are particularly useful for the display of medical images both from X-ray generated data and from data generated from various other sources including magnetic resonance imaging and positron emission tomography. The present invention provides a means for rapid generation of three dimensional images so as to enable interactive use by medical practitioners.
摘要翻译： 用于显示三维表面图像的方法和装置包括使用用于快速检索表面近似信息的案例表。 将与给定体素元素相关联的八个立方相邻数据点与预定阈值或范围进行比较，以生成八位向量。 该八比特向量用于快速产生近似表面的向量列表。 执行非线性内插操作以更接近近似所需表面并且提供与所需表面垂直的向量的更准确的表示。 这些正常方向的准确表示提供了用于在显示屏上准确地表示阴影信息的手段。 本发明的方法和装置对于从X射线产生的数据和从包括磁共振成像和正电子发射断层摄影的各种其他来源产生的数据中显示医学图像特别有用。 本发明提供了一种用于快速生成三维图像以便能够由医疗人员进行交互使用的手段。
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公开(公告)号：US4527082A
公开(公告)日：1985-07-02
申请号：US531514
申请日：1983-09-12
申请人： Harvey E. Cline
发明人： Harvey E. Cline
CPC分类号： H03H3/08 , Y10S430/146
摘要： A method for the fabrication of surface acoustic wave devices by the selective removal of one of the phases of a metallic eutectic, solidified as a thin film having a lamellar morphology, forms a first spaced array of metallic elements. Removal is by line-heater or laser beam. This then provides a self-aligned structure for the formation of a second array of metallic elements interdigitated with the elements of the first array.
摘要翻译： 通过选择性去除金属共晶体的相中的一个相，固化为具有层状形态的薄膜来制造表面声波器件的方法形成第一间隔开的金属元件阵列。 通过线路加热器或激光束去除。 这然后提供自对准结构，用于形成与第一阵列的元件相互指向的第二金属元件阵列。
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公开(公告)号：US4492739A
公开(公告)日：1985-01-08
申请号：US558125
申请日：1983-12-05
申请人： Harvey E. Cline
发明人： Harvey E. Cline
IPC分类号： C25F3/02 , C30B21/02 , C30B33/00 , H01L21/768 , H01L23/532 , H01S5/12 , H05K3/10 , C22B9/00 , C22B61/00
CPC分类号： H05K3/10 , C25F3/02 , C30B21/02 , C30B29/52 , C30B33/00 , H01L21/76888 , H01L21/76894 , H01L23/53219 , H01S5/12 , H01L2924/0002 , Y10T428/12465
摘要： Arrays of substantially parallel metallic wires of micron and sub-micron dimensions are made by directionally solidifying the components of a eutectic alloy system as a thin film and subsequently removing at least one of the phases. The arrays are useful, for example, as conductors in microelectronic devices and as diffraction gratings for electromagnetic and ultrasonic waves.
摘要翻译： 基本平行的微米和亚微米尺寸的金属线的阵列通过将共晶合金系统的组分定向凝固为薄膜并随后除去至少一个相来制备。 该阵列例如作为微电子器件中的导体和用于电磁和超声波的衍射光栅是有用的。
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58.发明授权Zirconium alloys having an integral .beta.-quenched corrosion-resistant surface region 失效锆合金具有整体的β淬火耐腐蚀表面区域
公开(公告)号：US4279667A
公开(公告)日：1981-07-21
申请号：US972388
申请日：1978-12-22
申请人： Thomas R. Anthony , Harvey E. Cline
发明人： Thomas R. Anthony , Harvey E. Cline
CPC分类号： C22F1/186 , C22F3/00 , Y10S148/903
摘要： A body composed of a zirconium alloy is afforded enhanced corrosion resistance to a high pressure and high temperature steam environment by an integral surface region of .beta.-quenched zirconium formed in situ by laser beam scanning and afforded good mechanical and structural properties by the underlying bulk region whose metallurgical structure is selected to optimize these mechanical properties.
摘要翻译： 由锆合金构成的主体通过激光束扫描在原位形成的β-淬火锆的整体表面区域提供对高压和高温蒸汽环境的增强的耐腐蚀性，并通过下面的体积区域提供良好的机械和结构性能 其冶金结构被选择以优化这些机械性能。
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公开(公告)号：US4233934A
公开(公告)日：1980-11-18
申请号：US967285
申请日：1978-12-07
摘要： A guard ring for processing a wafer of semiconductor material by thermal gradient zone melting has a beveled internal wall surface for supporting the wafer therein. The thickness of the guard ring is about twice the thickness of the wafer.
摘要翻译： 用于通过热梯度区熔化处理半导体材料晶片的保护环具有用于在其中支撑晶片的斜面内壁表面。 保护环的厚度约为晶片厚度的两倍。
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公开(公告)号：US4224594A
公开(公告)日：1980-09-23
申请号：US972387
申请日：1978-12-22
申请人： Thomas R. Anthony , Harvey E. Cline
发明人： Thomas R. Anthony , Harvey E. Cline
CPC分类号： H01L43/08 , Y10S438/929
摘要： A semiconductor magnetoresistor device embodies a plurality of spaced highly conductive planar metallic-like electrodes formed in situ by thermal gradient zone melting to maximize the increase in the current path in a magnetic field established in the device.
摘要翻译： 半导体磁阻电阻器件包含通过热梯度区熔化原位形成的多个间隔开的高度导电的平面金属状电极，以最大限度地增加在器件中建立的磁场中的电流路径。
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