公开(公告)号：US20030213913A1

公开(公告)日：2003-11-20

申请号：US10058568

申请日：2002-01-28

申请人： CTI PET Systems, Inc.

发明人： J. Clifton Moyers ,  John W. Young ,  Mark Musrock

IPC分类号： G01T001/00

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： An apparatus and method for determining the total energy of a continuously under-sampled energy signal resulting from an annihilation event detected by a positron emission tomograph (PET) scanner. An annihilation event is detected by a scintillator crystal and photomultiplier tube, which produces an energy signal that is continuously under-sampled by an analog-to-digital converter. The start time of the energy signal is determined by a constant fraction discriminator and time-to-digital converter. The start time is used to calculate a new amplitude for each sample, from which the total energy can be calculated.

摘要翻译： 一种用于确定由正电子发射断层扫描仪（PET）扫描仪检测的湮灭事件产生的连续欠采样能量信号的总能量的装置和方法。 湮灭事件由闪烁体晶体和光电倍增管检测，其产生由模数转换器连续欠采样的能量信号。 能量信号的开始时间由恒定分数鉴别器和时间 - 数字转换器确定。 开始时间用于计算每个样本的新幅度，从中可以计算总能量。

公开(公告)号：US20040217292A1

公开(公告)日：2004-11-04

申请号：US10836755

申请日：2004-04-30

申请人： CTI PET Systems, Inc.

发明人： J. Clifton Moyers ,  Michael E. Casey ,  Ronald Nutt

IPC分类号： G01T001/164 ,  G01T001/166

CPC分类号： A61B6/037 ,  A61B6/4488 ,  G01T1/1648 ,  G01T1/2985

摘要： A Positron Emission Tomography (PET) tomograph having continuously rotating panel detectors. The PET tomograph includes two or more panel detector heads removably mounted on a rotating carriage system with a coincidence point source transmission system. Each panel detector head includes an array of scintillators, a light guide disposed behind the scintillators, and an array of detectors disposed behind the light guide. Each panel detector head further includes dedicated detector electronics for processing data collected from the detectors in that panel. Each detector block is comprised of an array of Lutetium Oxyorthosilicate (LSO) crystals. A rotational drive system is provided for continuously rotating the panel detector heads about the gantry frame. A data commutator is provided for communicating data from each detector panel head to a data processor. In order to remove heat generated by the panel detector heads, a chilled water cooling system is employed.

公开(公告)号：US20040031925A1

公开(公告)日：2004-02-19

申请号：US10222091

申请日：2002-08-16

申请人： CTI PET Systems, Inc.

发明人： J. Clifton Moyers ,  John G. Hoffman

IPC分类号： G01T001/164 ,  G21G004/00

CPC分类号： G01T1/2985 ,  A61B6/037 ,  G01T1/1648

摘要： An apparatus for providing source information to a positron emission tomography (PET) scanner upon demand, and a method for using same. An intelligent coincidence transmission source with multiple point sources includes data in a storage device. The data includes the date of manufacture, the activity level at that date, and other information. The data is provided to the scanner's computer system upon demand. The apparatus includes flexible means for maintaining electrical communication between the data storage device and the scanner.

摘要翻译： 一种根据需要向正电子发射断层摄影（PET）扫描仪提供源信息的装置及其使用方法。 具有多个点源的智能符合传输源包括存储设备中的数据。 数据包括制造日期，该日期的活动级别和其他信息。 根据需要将数据提供给扫描仪的计算机系统。 该装置包括用于维持数据存储装置和扫描仪之间的电通信的灵活装置。