The use of image synthesis techniques in target and roi delineation in the upright position.
The use of image synthesis techniques in target and roi delineation in the upright position.
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DOI：
10.1002/acm2.14079
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发表时间：
2023-08
影响因子：
2.1
通讯作者：
Mackie, Rockwell
中科院分区：
文献类型：
--
作者：
Schreuder, Andries Niek;Paragios, Nikos;Kissick, Michael;Lis, Michelle;Underwood, Tracy S. A.;Mackie, Rockwell
使用多模态成像技术（如CT、MRI和PET成像）是放射治疗计划的最新技术。除了有限数量的低磁场MR扫描器之外，大多数这样的成像技术只能对处于横卧位置的患者进行成像。在患者处于直立取向的情况下递送放射治疗具有许多益处，并且几家公司现在正在开发与直立诊断螺旋CT扫描仪组合的直立患者定位器以促进直立放射治疗。由于患者身体上的重力的方向变化，大多数结构和器官将在横卧和直立位置之间改变位置和形状。因此，有关这些结构和器官的详细知识通常只能在卧位中获得。因此，问题陈述被很好地定义，即，如果仅使用直立诊断质量CT图像不能足够准确地识别和/或描绘这些结构和器官，即，处于风险体积的目标或区域，我们如何知道这些结构和器官在直立位置中的位置？本文概述了两种方法的基础上合成CT或MR图像，以克服这个问题。
The use of multi‐modality imaging technologies such as CT, MRI, and PET imaging is state of the art for radiation therapy treatment planning. Except for a limited number of low magnetic field MR scanners the majority of such imaging technologies can only image the patient in a recumbent position. Delivering radiation therapy treatments with the patient in an upright orientation has many benefits and several companies are now developing upright patient positioners combined with upright diagnostic helical CT scanners to facilitate upright radiation therapy treatments. Due to the directional changes in the gravitational forces on the patient's body, most structures and organs will change position and shape between the recumbent and upright positions. Detailed knowledge about such structures and organs are therefore often only available in the recumbent position. The problem statement is therefore well defined, that is, how do we know where such structures and organs, that is, the target or region at risk volumes, are in the upright position if those cannot be identified and or delineated accurately enough using the upright diagnostic quality CT images only? This paper outlines two methods based on synthetic CT or MR images to overcome this problem.
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影响因子：
10.9
作者：
Maintz, J B;Viergever, M A
通讯作者：
Viergever, M A
影响因子：
3.3
作者：
Yang, Jinzhong;Chu, David;Court, Laurence E.
通讯作者：
Court, Laurence E.
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作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
2.1
作者：
McCarroll, Rachel E.;Beadle, Beth M.;Court, Laurence E.
通讯作者：
Court, Laurence E.