公开(公告)号：US20110075906A1

公开(公告)日：2011-03-31

申请号：US12892011

申请日：2010-09-28

申请人： Thomas ALLMENDINGER ,  Jörg Hausleiter ,  Heiko Mehldau ,  Carsten Thierfelder

发明人： Thomas ALLMENDINGER ,  Jörg Hausleiter ,  Heiko Mehldau ,  Carsten Thierfelder

IPC分类号： G06K9/00

CPC分类号： A61B6/481 ,  A61B5/0456 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4266 ,  A61B6/466 ,  A61B6/482 ,  A61B6/503 ,  A61B6/504 ,  A61B6/507 ,  A61B6/5288 ,  A61B6/541

摘要： A method is disclosed for scanning a cyclically moved examination object using a contrast agent within the scope of a preliminary examination by way of a CT scanner, in which measurement data is recorded at a sequence of recording times, and in which a first image is reconstructed at every recording time from the measurement data, from which a time profile of a concentration of the contrast agent is established. In at least one embodiment, the recording times for respectively recording a certain phase of the motion are synchronized with a motion signal from the examination object, wherein a second image with a small time offset with respect to the first image is reconstructed from the measurement data at each recording time, and wherein a motion curve representing a time profile of an intensity of the cyclical motion is established by comparing the first image and the second image at each recording time. As such, motion information can also be obtained from the mandatory preliminary examination with a minimally increased dose. A corresponding CT scanner and a computer program are also disclosed.

摘要翻译： 公开了一种用于在CT扫描仪的初步检查范围内使用造影剂扫描循环移动的检查对象的方法，其中测量数据以记录时间序列记录，并且其中重建第一图像 在测量数据的每个记录时间，建立造影剂浓度的时间曲线。 在至少一个实施例中，用于分别记录运动的某一相位的记录时间与来自检查对象的运动信号同步，其中相对于第一图像具有小时间偏移的第二图像从测量数据重建 并且其中通过在每个记录时间比较第一图像和第二图像来建立表示循环运动的强度的时间曲线的运动曲线。 因此，运动信息也可以从强制性初步检查中以最小增加的剂量获得。 还公开了相应的CT扫描器和计算机程序。

公开(公告)号：US20100324434A1

公开(公告)日：2010-12-23

申请号：US12818587

申请日：2010-06-18

申请人： Thomas ALLMENDINGER ,  Heiko Mehldau ,  Thomas Seiler ,  Carsten Thierfelder

发明人： Thomas ALLMENDINGER ,  Heiko Mehldau ,  Thomas Seiler ,  Carsten Thierfelder

IPC分类号： A61B5/0402 ,  A61B6/03

CPC分类号： A61B5/0456 ,  A61B6/503 ,  A61B6/541

摘要： A method is disclosed for assisting in determination of the suitability of a patient for a scan of the heart of the patient using an X-ray computer tomograph. In at least one embodiment of the method, a) an electrocardiogram of the patient is recorded; b) the electrocardiogram is evaluated by predicting the occurrence time of at least the immediately following R wave on the basis of at least four immediately consecutive R waves of the electrocardiogram which were measured last, and comparing this with the actual measured occurrence time of the next R wave; and c) wherein the quality of the prediction is visualized qualitatively. Further, in at least one embodiment, a device is disclosed including an ECG instrument and a computation device for carrying out the method. At least one embodiment of the invention furthermore relates to a method and a device for scanning the heart of a patient on the basis of a prediction of R waves.

摘要翻译： 公开了一种用于帮助确定患者对于使用X射线计算机断层摄影术对患者心脏进行扫描的适合性的方法。 在该方法的至少一个实施例中，a）记录患者的心电图; b）通过基于最后测量的至少四个紧邻的心电图的R波来预测至少紧随其后的R波的发生时间来评估心电图，并将其与下一次的实际测量的发生时间进行比较 R波; 和c）其中预测的质量被定性可视化。 此外，在至少一个实施例中，公开了一种包括用于执行该方法的ECG仪器和计算装置的装置。 本发明的至少一个实施例还涉及一种用于基于R波的预测来扫描患者的心脏的方法和装置。