Clinical Assessment of Prostate Displacement and Planning Target Volume Margins for Stereotactic Body Radiotherapy of Prostate Cancer
نویسندگان
چکیده
منابع مشابه
Prostate-specific antigen kinetics after hypofractionated stereotactic body radiotherapy for localized prostate cancer
Background: stereotactic body radiotherapy (SBRT) has emerged as an effective treatment for localized prostate cancer. However, prostate-specific antigen (PSA) kinetics after SBRT has not been well characterized. The objective of the current study is to analyze the rate of PSA decline and PSA nadir following hypofractonated SBRT in localized prostate cancer. Materials and Methods: From 2008...
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Purpose. High-risk prostate cancer patients often receive radiotherapy (RT) to pelvic lymphatics (PLs). The aim of this study was to determine the safety margin around clinical target volume for PL (PL-CTV) to construct planning target volume for PL (PL-PTV) and for planning elective PL irradiation. Methods and Materials. Six patients who received RT to PL as part of prostate cancer treatment w...
متن کاملprostate-specific antigen kinetics after hypofractionated stereotactic body radiotherapy for localized prostate cancer
background: stereotactic body radiotherapy (sbrt) has emerged as an effective treatment for localized prostate cancer. however, prostate-specific antigen (psa) kinetics after sbrt has not been well characterized. the objective of the current study is to analyze the rate of psa decline and psa nadir following hypofractonated sbrt in localized prostate cancer. materials and methods: from 2008 to ...
متن کاملOptimization of clinical target volume delineation using magnetic resonance spectroscopic imaging (MRSI) in 3D conformal radiotherapy of prostate cancer
Background: For the purpose of individual clinical target volume assessment in radiotherapy of prostate cancer, MRSI was used as a molecular imaging modality with MRI and CT images. Materials and Methods: The images of 20 prostate cancer patients were used in this study. The MR and MRSI images were registered with CT ones using non-rigid registration technique. The CT based planning (BP), CT/MR...
متن کاملPlanning target volume margins for prostate radiotherapy using daily electronic portal imaging and implanted fiducial markers
BACKGROUND Fiducial markers and daily electronic portal imaging (EPI) can reduce the risk of geographic miss in prostate cancer radiotherapy. The purpose of this study was to estimate CTV to PTV margin requirements, without and with the use of this image guidance strategy. METHODS 46 patients underwent placement of 3 radio-opaque fiducial markers prior to prostate RT. Daily pre-treatment EPIs...
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ژورنال
عنوان ژورنال: Frontiers in Oncology
سال: 2020
ISSN: 2234-943X
DOI: 10.3389/fonc.2020.00539