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公开(公告)号：US20110293161A1
公开(公告)日：2011-12-01
申请号：US13149171
申请日：2011-05-31
申请人： Byong Yong Yi , X. Cedric Yu , Jin Zhang , Giovanni Lasio
发明人： Byong Yong Yi , X. Cedric Yu , Jin Zhang , Giovanni Lasio
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/4085 , A61B6/4233 , A61B6/4291 , A61B6/487 , A61B6/5258 , A61B6/583 , G06T2211/412
摘要： Techniques for background subtraction in computed tomography include determining voxels in a slice of interest in a three dimensional computed tomography scan of the interior of a body based on a first set of measurements of radiation transmitted through the body. Based on the first set of measurements, a first background image for radiation transmitted through the body in a first direction is determined without the effects of the voxels in the slice of interest. A current image is determined based on a different current measurement of radiation transmitted through the body in the first direction. A first difference is determined between the current image and the first background image. The result is a high contrast image in the slice of interest even from a single current projection image.
摘要翻译： 用于计算机断层摄影术中背景减影的技术包括：基于通过身体传播的辐射的第一组测量，在身体内部的三维计算机断层摄影扫描中确定感兴趣切片中的体素。 基于第一组测量，确定用于在第一方向上透射穿过身体的辐射的第一背景图像，而不受感兴趣切片中的体素的影响。 基于在第一方向上透过身体的辐射的不同电流测量来确定当前图像。 在当前图像和第一背景图像之间确定第一个差异。 结果是即使从单个当前投影图像也感兴趣的切片中的高对比度图像。
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公开(公告)号：US08042209B2
公开(公告)日：2011-10-25
申请号：US11911514
申请日：2006-04-12
IPC分类号： A47B85/00
CPC分类号： A61N5/1049 , A61B5/1127 , A61B6/0457 , A61N5/1037 , A61N5/107 , A61N2005/1055 , A61N2005/1059 , A61N2005/1061
摘要： Techniques for improving treatment delivered to a target site in a patient include delivering a treatment from a treatment delivery device to a target site in a patient supported by a patient support structure. During the delivery of treatment, a state of the patient is measured to produce real-time measurement data. Measuring the state is non-invasive; and the measured state is a correlated surrogate for position of the target site. Compensating movement data is determined based on the real-time measurement data to cause the target site to maintain a particular spatial relationship with the treatment delivery device. Either the treatment delivery device, or the support structure, or both, are moved based on the compensating movement data. When the delivery device alone is moved, the correlation between measured state and target site is based on partial least squares applied to pre-treatment measurements of both.
摘要翻译： 用于改善递送到患者的目标部位的治疗的技术包括将治疗从治疗递送装置递送到由患者支撑结构支撑的患者中的目标部位。 在治疗期间，测量患者的状态以产生实时测量数据。 测量状态是非侵入性的; 测量状态是目标位置位置的相关替代。 基于实时测量数据确定补偿运动数据，以使目标站点与治疗传送装置保持特定的空间关系。 基于补偿运动数据来移动治疗递送装置或支撑结构，或两者。 当单独的输送装置移动时，测量状态和目标部位之间的相关性基于应用于两者的预处理测量的偏最小二乘法。
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公开(公告)号：US20080212737A1
公开(公告)日：2008-09-04
申请号：US11911514
申请日：2006-04-12
IPC分类号： A61N5/01
CPC分类号： A61N5/1049 , A61B5/1127 , A61B6/0457 , A61N5/1037 , A61N5/107 , A61N2005/1055 , A61N2005/1059 , A61N2005/1061
摘要： Techniques for improving treatment delivered to a target site in a patient include delivering a treatment from a treatment delivery device to a target site in a patient supported by a patient support structure. During the delivery of treatment, a state of the patient is measured to produce real-time measurement data. Measuring the state is non-invasive; and the measured state is a correlated surrogate for position of the target site. Compensating movement data is determined based on the real-time measurement data to cause the target site to maintain a particular spatial relationship with the treatment delivery device. Either the treatment delivery device, or the support structure, or both, are moved based on the compensating movement data. When the delivery device alone is moved, the correlation between measured state and target site is based on partial least squares applied to pre-treatment measurements of both.
摘要翻译： 用于改善递送到患者的目标部位的治疗的技术包括将治疗从治疗递送装置递送到由患者支撑结构支撑的患者中的目标部位。 在治疗期间，测量患者的状态以产生实时测量数据。 测量状态是非侵入性的; 测量状态是目标位置位置的相关替代。 基于实时测量数据确定补偿运动数据，以使目标站点与治疗传送装置保持特定的空间关系。 基于补偿运动数据来移动治疗递送装置或支撑结构，或两者。 当单独的输送装置移动时，测量状态和目标部位之间的相关性基于应用于两者的预处理测量的偏最小二乘法。
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