公开(公告)号：US20070081704A1

公开(公告)日：2007-04-12

申请号：US11384029

申请日：2006-03-17

申请人： Tinsu Pan ,  Osama Mawlawi ,  Dershan Luo ,  Steven Kohlmyer ,  Dennis Hurley

发明人： Tinsu Pan ,  Osama Mawlawi ,  Dershan Luo ,  Steven Kohlmyer ,  Dennis Hurley

IPC分类号： G06K9/00

CPC分类号： G06T5/50

摘要： Embodiments of the present invention provide the use of average CT (ACT) to match the temporal resolution of CT and PET to enhance PET imaging and evaluated tumor quantification with HCT and ACT. For example, an embodiment of a method of enhanced PET imaging on a PET/CT scanner includes generating an average CT scan responsive to 4D CT emission image data to thereby correct attenuation in PET emission image data. Another embodiment of a method of attenuation correction in a PET/CT scan includes averaging a plurality of consecutive low dose CT images of approximately one breathing cycle to thereby obtain an average CT.

摘要翻译： 本发明的实施例提供使用平均CT（ACT）来匹配CT和PET的时间分辨率以增强PET成像并用HCT和ACT评价肿瘤定量。 例如，在PET / CT扫描仪上增强PET成像的方法的实施例包括响应于4DCT发射图像数据产生平均CT扫描，从而校正PET发射图像数据中的衰减。 PET / CT扫描中的衰减校正方法的另一实施例包括对大约一个呼吸周期的多个连续的低剂量CT图像进行平均，从而获得平均CT。

公开(公告)号：US20060178575A1

公开(公告)日：2006-08-10

申请号：US11053793

申请日：2005-02-08

申请人： Kelly Piacsek ,  Janice Chu ,  Steven Kohlmyer ,  Michael Cook ,  Michael Bonner ,  Patrick O'Day

发明人： Kelly Piacsek ,  Janice Chu ,  Steven Kohlmyer ,  Michael Cook ,  Michael Bonner ,  Patrick O'Day

IPC分类号： A61B5/05

CPC分类号： A61B5/113 ,  A61B6/032 ,  A61B6/037 ,  A61B6/5235

摘要： A method of imaging an object using a medical imaging system is provided. The imaging method acquires a stream of sinogram data. Changes in the stream of sinogram data corresponding to movement of the object are detected. The method selects portions of the stream of sinogram data. An image of the object based on the selected portions of the sinogram data is generated.

公开(公告)号：US20070237289A1

公开(公告)日：2007-10-11

申请号：US11401087

申请日：2006-04-10

申请人： Timothy Deller ,  Kelly Piacsek ,  Steven Kohlmyer

发明人： Timothy Deller ,  Kelly Piacsek ,  Steven Kohlmyer

IPC分类号： A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  H05G1/60

CPC分类号： A61B6/541

摘要： A method includes receiving cine scan data, receiving a plurality of target phases of a periodic waveform, and generating a plurality of images, each image centered at one of the received target phases. A phase shall represent a percentage of a period of a repeating cycle.

摘要翻译： 一种方法包括接收电影扫描数据，接收周期性波形的多个目标相位，以及生成多个图像，每个图像以所接收的目标相位之一为中心。 相位应表示重复循环周期的百分比。