公开(公告)号：US4495636A

公开(公告)日：1985-01-22

申请号：US222133

申请日：1981-01-02

申请人： Alan M. Jacobs ,  Edward S. Kenney ,  Joseph J. McInerney

发明人： Alan M. Jacobs ,  Edward S. Kenney ,  Joseph J. McInerney

IPC分类号： A61B6/02 ,  G01N23/04 ,  G01N23/20 ,  G01N23/201

CPC分类号： A61B6/483 ,  G01N23/04 ,  G01N23/20008 ,  G01N23/201 ,  G01N2223/40 ,  G01N2223/612

摘要： A diagnostic imaging system and process permits construction of an image of an area of an interfacial surface within the body of a subject, such as the heart-lung interface. The imaging system includes radiation source means for generating a shaped beam of penetrating radiation for illuminating the interfacial surface. Radiation scattered from tissue at the interface is detected by a plurality of directional radiation detectors which can be automatically positioned and oriented so that their fields of view intersect the beam of radiation and the interfacial surface.

摘要翻译： 诊断成像系统和过程允许构建受试者体内例如心 - 肺界面的界面的区域的图像。 成像系统包括用于产生用于照射界面的穿透辐射的成形光束的辐射源装置。 通过多个定向辐射检测器检测在界面处从组织散射的辐射，其可以被自动定位和定向，使得它们的视野与辐射束和界面表面相交。

公开(公告)号：US5105452A

公开(公告)日：1992-04-14

申请号：US674913

申请日：1991-03-26

申请人： Joseph J. McInerney

发明人： Joseph J. McInerney

IPC分类号： A61B6/02 ,  A61B6/03

CPC分类号： A61B6/483 ,  A61B6/032 ,  A61B6/4291 ,  A61B6/507

摘要： A narrow x-ray beam is scanned through the chest cavity of a subject to create a scattered radiation signal. The scattered radiation signal is used to construct a tomographic image of the contents of the subject's chest cavity on a display screen. A crosshair on the display screen is used to mark the location of a bypass graft in the image. A computer senses the position of the crosshair and subsequently positions a fluorescence detector over the subject to interrogate the location of the bypass graft within the chest cavity. A tracer material injected into the subject fluoresces as it passes through the irradiated bypass graft. The resulting fluorescence transient is recorded and provides a measure of graft patency and flow characteristics.

摘要翻译： 扫描狭窄的X射线束通过受试者的胸腔产生散射辐射信号。 散射辐射信号用于在显示屏上构建被检者胸腔内容物的断层图像。 显示屏上的十字准线用于标记图像中旁路移植物的位置。 计算机感测十字准线的位置，随后将荧光检测器放置在对象上以询问旁路移植物在胸腔内的位置。 注射到受试者中的示踪剂材料在通过照射的旁路移植物时发荧光。 记录所得到的荧光瞬变，并提供移植物通畅性和流动特性的量度。