Dosimetric Study on Treatment Planning of the Whole Central Nervous System (CNS) by Different Radiotherapy

Li, Jun; Zhang, Xizhi; Gui, Long-Gang; Ge, Yun; Chen, Ying; Tang, Xiaobin; Chen, Da; Chai, Linjiang

doi:10.1166/jmihi.2015.1459

Cited by 1 publication

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“…It is easy to cause the target area to miss the target, but these studies have not verified the pros and cons of each method from the influence of dosimetric distribution. Landry et al (Landry & Dedes, 2014;Li et al, 2015) used the difference in dose distribution to verify the pros and cons of the three registration methods. The experiment concluded that the soft tissue registration method has less influence on the dose distribution than the bone marker registration method and the skin marker registration method.…”

Section: Discussionmentioning

confidence: 99%

Cone beam computed tomography and image registration based on target area for stereotactic body radiation therapy of lung cancer

Gui

Miao

2021

Journal of Radiation Research and Applied Sciences

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This paper aims to compare the dosimetric parameters of the original plan and the simulated plan to explore the clinical value of cone beam CT and planned CT image registration based on the target area. The results showed that Dmax, Dmin, dmean and V60 of PTV in the original plan were (108.3 ± 1.1)%, (97.2 ± 0.3)%, (102.6 ± 0.6)% and (95.2 ± 0.6)% respectively. The Dmax of spinal cord was (9.6 ± 1.8) gy, the V20 of lung was (5.2 ± 1.9)%, and the dmean of lung was (− 3.7 ± 1.5) gy; however, when the target area was translated in the three directions of the patient's back, right side and foot, the dosimetric parameters of the target area (Dmax, Dmin and V60), dmean and V20 of lung and Dmax of spinal cord showed slight differences, which all met the limit requirements of target area and dangerous organs (OARs) (RTOG) 0915 report. Therefore, target based image registration is feasible. If the registration translation error is less than or equal to 1 cm, there is no need to re move the treatment bed according to the registration error.

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Section: Discussionmentioning

confidence: 99%