公开(公告)号：US06631285B2

公开(公告)日：2003-10-07

申请号：US09808931

申请日：2001-03-15

申请人： Frank Natterer ,  Frank T. Wübbeling

发明人： Frank Natterer ,  Frank T. Wübbeling

IPC分类号： A61B600

CPC分类号： G06T17/20 ,  A61B6/037 ,  A61B6/4258 ,  Y10S378/901

摘要： A nuclear medical imaging apparatus receives an associated object (18). A radiation detector (12) is equipped with a slat collimator (14) including a plurality of spaced apart slats (114) separating individual detecting elements of an essentially linear array of detecting elements (116). The slat collimator produces planar collimation and results in projection data which is weighted inversely with distance in the projection direction. An image reconstruction processor (34) converts the projection data obtained by the detector (12) into an image, including correction for the inverse distance weighting. The image reconstruction processor (34) includes a memory, a preconditioning operator P (36), a projection operator S (38), and an iterative loop operator (40) which applies the preconditioning operator P (36) and the projection operator S (38) to the memory contents to calculate updated memory contents. The iterative loop operator (40) iteratively corrects for the inverse distance dependence of the projection data.

公开(公告)号：US20060293597A1

公开(公告)日：2006-12-28

申请号：US11437001

申请日：2006-05-17

申请人： Steven Johnson ,  David Borup ,  James Wiskin ,  Michael Berggren ,  Frank Natterer ,  F. Wubbeling ,  Yongzhi Zhang ,  Douglas Christensen ,  Frank Stenger

发明人： Steven Johnson ,  David Borup ,  James Wiskin ,  Michael Berggren ,  Frank Natterer ,  F. Wubbeling ,  Yongzhi Zhang ,  Douglas Christensen ,  Frank Stenger

IPC分类号： A61B8/00

CPC分类号： A61B5/4312 ,  A61B5/7257 ,  A61B8/0825 ,  A61B8/14 ,  A61B8/15 ,  A61B8/406 ,  A61B8/4209 ,  A61B8/4281 ,  A61B8/4483 ,  A61B8/485 ,  G01S13/89 ,  G01S15/895 ,  G01S15/8977 ,  G06T11/001

摘要： A transmission wave field imaging method, comprising the transmission of an incident wave field into an object, the incident wave field propagating into the object and, at least, partially scattering. Also includes the measuring of a wave field transmitted, at least in part, through an object to obtain a measured wave field, the measured wave field based, in part, on the incident wave field and the object. Additionally, the processing of the measured wave field utilizing a parabolic approximation reconstruction algorithm to generate an image data set representing at least one image of the object.

公开(公告)号：US06984210B2

公开(公告)日：2006-01-10

申请号：US10323467

申请日：2002-12-18

申请人： David H. Chambers ,  Jeffrey Mast ,  Stephen G. Azevedo ,  Frank Wuebbeling ,  Frank Natterer ,  Neb Duric ,  Peter J. Littrup ,  Earle Holsapple

发明人： David H. Chambers ,  Jeffrey Mast ,  Stephen G. Azevedo ,  Frank Wuebbeling ,  Frank Natterer ,  Neb Duric ,  Peter J. Littrup ,  Earle Holsapple

IPC分类号： A61B8/00

CPC分类号： A61B8/0825 ,  A61B8/13

摘要： A method and apparatus are provided for investigating tissue in which acoustic data are derived from scattering a plurality of pulsed spherical or cylindrical acoustic waves from a plurality of transmission elements through the tissue to a plurality of receiving elements. The acoustic data, which include a mix of reflected and transmitted acoustic waves, are received and digitized, and a representation of a portion of the tissue is generated from the digitized acoustic data.

摘要翻译： 提供了一种用于调查其中导出声学数据的组织的方法和装置，其将多个脉冲的球形或圆柱形声波从多个传输元件通过组织散布到多个接收元件。 包括反射和传播的声波的混合的声学数据被接收和数字化，并且从数字化声学数据生成组织的一部分的表示。

公开(公告)号：US6005916A

公开(公告)日：1999-12-21

申请号：US972101

申请日：1997-11-17

申请人： Steven A. Johnson ,  David T. Borup ,  James W. Wiskin ,  Frank Natterer ,  F. Wubeling ,  Yongzhi Zhang ,  Scott Charles Olsen

发明人： Steven A. Johnson ,  David T. Borup ,  James W. Wiskin ,  Frank Natterer ,  F. Wubeling ,  Yongzhi Zhang ,  Scott Charles Olsen

IPC分类号： A61B8/08 ,  A61B8/14 ,  A61B8/15 ,  G01H3/12 ,  G01N22/00 ,  G01N23/205 ,  G01S7/285 ,  G01S13/10 ,  G01S13/89 ,  G01S15/04 ,  G01S15/88 ,  G01S15/89 ,  G01S15/96 ,  G01V1/00 ,  G06T11/00 ,  G01N23/201

CPC分类号： G06T11/006 ,  A61B5/05 ,  A61B5/0507 ,  A61B5/4312 ,  A61B5/7257 ,  A61B8/0825 ,  A61B8/14 ,  A61B8/15 ,  A61B8/406 ,  A61B8/4483 ,  G01H3/125 ,  G01N22/00 ,  G01N23/2055 ,  G01S13/89 ,  G01S15/8909 ,  G01S15/8913 ,  G01S15/8929 ,  G01S15/8938 ,  G01S15/895 ,  G01S15/8977 ,  G01V1/003 ,  A61B8/4209 ,  A61B8/485 ,  G01S13/103 ,  G01S15/04 ,  G01S15/88 ,  G01S15/89 ,  G01S15/96 ,  G06T2211/408 ,  G06T2211/424 ,  Y10S378/901

摘要： An apparatus and method for rapid real time imaging with wavefield energy using a C.P.U. programmed to process data derived from wavefield energy that has been transmitted and scattered by an object so as to reconstruct a wavefield image of the object. Electronic signals are propagated and are transduced into wavefield energy waves which in turn are propagated toward the object. Detectors detect the wavefield energy waves scattered by the object. The detected wavefield energy waves are then electronically processed and input into a high-speed digital computer which may comprise a C.P.U. and/or a C.P.U. in combination with an array or parallel processor. Data is also prepared and input to the computer representing the incident field and the computer then reconstructs a high-quality image of the object having high spacial resolution and including actual properties of the object. The media in which the object is embedded may be fluid or solid, homogeneous, or layered (such as stratigraphic layering, or ocean velocity layers, or layering of composites in nondestructive imaging applications), or may consist of porous material (either sedimentary deposits or composites in nondestructive testing).

摘要翻译： 一种使用C.P.U.用波场能快速实时成像的装置和方法。 被编程为处理由物体发射和散射的波场能量导出的数据，以便重建物体的波场图像。 电子信号被传播并被转导成波场能量波，其又向着物体传播。 探测器检测物体散射的波场能量波。 然后将检测到的波场能量波电子处理并输入到可包括C.P.U.的高速数字计算机中。 和/或C.P.U. 与阵列或并行处理器组合。 还准备数据并将其输入到表示事件场的计算机，然后计算机重建具有高空间分辨率并包括对象的实际属性的对象的高质量图像。 物体被嵌入的介质可能是流体或固体，均匀或分层的（例如地层分层或海洋速度层，或非破坏性成像应用中复合材料的分层），或可由多孔材料（沉积沉积物或 复合材料在非破坏性测试中）。