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    • 2. 发明授权
    • Radiographic test phantom for computed tomographic lung nodule analysis
    • 用于计算机断层扫描肺结节分析的射线照相测试体模
    • US4646334A
    • 1987-02-24
    • US818804
    • 1986-01-14
    • Elias A. Zerhouni
    • Elias A. Zerhouni
    • A61B6/00G09B23/28G03B42/02
    • A61B6/583A61B6/508G09B23/286
    • Disclosed is a test phantom for evaluating a computed tomographic scan of nodules in a lung of a human or non-human animal comprising a device which simulates a 15 to 40 mm thick transverse section of said animal the tissue simulating portions of said device are constructed of materials having radiographic densities substantially identical to those of the corresponding tissue in said simulated transverse section of said animal and contain voids therein which simulate, in size and shape, the lung cavities in said transverse section. At least one of the voids has positioned therein a test reference device constructed of a material of predetermined radiographic density which simulates a lung nodule.
    • 公开了一种用于评估人或非人动物的肺中的结节的计算机断层扫描的测试体模,包括模拟所述动物的15至40mm厚的横截面的装置,所述装置的组织模拟部分由 具有与所述动物的所述模拟横截面中的相应组织基本相同的射线照相密度的材料,并且在其中包含在其中模拟所述横截面中的肺腔的尺寸和形状的空隙。 至少一个空隙已经在其中定位了由模拟肺结节的预定放射照相密度的材料构成的测试参考装置。
    • 5. 发明授权
    • Method of internal magnetic resonance imaging and spectroscopic analysis
and associated apparatus
    • 内部磁共振成像和光谱分析方法及相关设备
    • US5699801A
    • 1997-12-23
    • US457833
    • 1995-06-01
    • Ergin AtalarPaul A. BottomleyElias A. Zerhouni
    • Ergin AtalarPaul A. BottomleyElias A. Zerhouni
    • A61B10/00A61B5/055A61B10/02A61B19/00G01R33/34
    • G01R33/34084A61B5/055G01R33/341G01R33/3657G01R33/3678G01R33/34007
    • The invention provides a method for magnetic resonance imaging and spectroscopic analysis of the interior of a specimen which includes positioning the specimen within a main magnetic field, introducing an invasive probe having an elongated receiver coil into or adjacent to the specimen with the coil having at least one pair of elongated electrical conductors, preferably, generally parallel to each other disposed within a dielectric material and having a pair of ends electrically connected to each other. RF pulses are provided to the region of interest to excite magnetic resonance signals, gradient magnetic pulses are applied to the region of interest with the receiver coil receiving magnetic resonance signals and emitting responsive output signals which may be processed by a computer to provide image information for display in a desired manner. The method in a preferred form involves employing a flexible receiver coil which has uniform sensitivity along the coil and may be operated even when the magnetic resonance signal is in an oblique position. Tuning capacitance may be distributed along the length of the coil and/or a Faraday screen provided to minimize dielectric losses between the coil and the surrounding material of the specimen. The method may be used on a wide variety of specimens and in a preferred use is introduced into small blood vessels of a patient to facilitate determination of atherosclerotic plaque. Medical intervention procedures, such as plaque removal, may be employed generally simultaneously with the imaging of the present invention. Corresponding apparatus is provided.
    • 本发明提供了一种用于磁共振成像和样品内部光谱分析的方法,其包括将样品定位在主磁场内,将具有细长的接收器线圈的侵入性探针引入到试样中或与样品相邻,线圈至少具有 一对细长的电导体,优选地大致彼此平行地设置在电介质材料内并且具有彼此电连接的一对端部。 将RF脉冲提供给感兴趣的区域以激励磁共振信号,梯度磁脉冲被施加到感兴趣的区域,接收器线圈接收磁共振信号并且发出可由计算机处理的响应输出信号,以提供图像信息 以期望的方式显示。 优选形式的方法涉及使用具有沿线圈的均匀灵敏度的柔性接收器线圈,并且即使当磁共振信号处于倾斜位置时也可以进行操作。 调谐电容可以沿着线圈的长度和/或法拉第屏幕分布,以最小化线圈和样品的周围材料之间的介电损耗。 该方法可以用于各种各样的样品,并且优选的用途被引入到患者的小血管中以便于确定动脉粥样硬化斑块。 医疗干预程序,例如除斑,可以与本发明的成像通常同时使用。 提供相应的设备。