Comparison of CT and MRI-Based Gross Tumor Volume and Organ at Risk Delineation for Pancreatic Cancer Patients Undergoing Neoadjuvant Stereotactic Body Radiation Therapy

2014 ◽  
Vol 90 (1) ◽  
pp. S356 ◽  
Author(s):  
J. Li ◽  
K.A. Denniston ◽  
S.M. Hussain ◽  
H. Gan ◽  
C. Lin
Keyword(s):  
Pancreatic Cancer ◽  
At Risk ◽  
Radiation Therapy ◽  
Cancer Patients ◽  
Gross Tumor Volume ◽  
Tumor Volume ◽  
Stereotactic Body Radiation Therapy ◽  
Stereotactic Body Radiation ◽  
Organ At Risk ◽  
Ct And Mri

Impact of lung tumor motion on dose delivered to organ at risk in lung stereotactic body radiation therapy

2020 ◽  
Vol 9 (3-4) ◽  
pp. 191-198
Author(s):  
Milovan Savanovic ◽  
Bojan Strbac ◽  
Drazan Jaros ◽  
Dejan Cazic ◽  
Jean Noel Foulquier
Keyword(s):  
At Risk ◽  
Radiation Therapy ◽  
Stereotactic Body Radiation Therapy ◽  
Lung Tumor ◽  
Tumor Motion ◽  
Stereotactic Body Radiation ◽  
Organ At Risk

scholarly journals Adrenal Stereotactic Body Radiation Therapy: The Effects of a Full and Empty Stomach on Radiation Dose to Organs at Risk

2021 ◽  
Author(s):  
Osamu Tanaka ◽  
Takuya Taniguchi ◽  
Kousei Ono ◽  
Shuto Nakaya ◽  
Takuji Kiryu ◽  
...  
Keyword(s):  
At Risk ◽  
Radiation Therapy ◽  
Stereotactic Body Radiation Therapy ◽  
Organs At Risk ◽  
Left Kidney ◽  
Empty Stomach ◽  
Full Group ◽  
Left Adrenal Gland ◽  
Stereotactic Body Radiation ◽  
Organ At Risk

Abstract BackgroundStereotactic Body Radiation Therapy (SBRT) has been reported to be curative in the treatment of oligometastases to the adrenal glands. However, the adrenals are surrounded by radiation-sensitive organs. We performed an Organ at Risk (OAR) analysis for SBRT to the left adrenal gland based on gastric state.Patients and MethodsTwenty random stomachs were divided into “empty” or “full” groups of 10 each based on size. The PTV dose was 54 Gy/6 fx and D 95 coverage of PTV(CTV) (the dose to 95% of the PTV volume). ResultsThe gastric OAR dose in the empty group was significantly lower than the full group. The OAR dose to the left kidney in the empty group was significantly higher than in the full group.ConclusionThe smaller the stomach size, the lower the dose to the stomach. It is therefore better to perform SBRT on patients with an empty stomach.

The Dosimetric Impact of Interfractional Organ-at-Risk Movement During Liver Stereotactic Body Radiation Therapy

2019 ◽  
Vol 9 (6) ◽  
pp. e549-e558 ◽  
Author(s):  
Ryan K. Schmid ◽  
An Tai ◽  
Slade Klawikowski ◽  
Michael Straza ◽  
Khalid Ramahi ◽  
...  
Keyword(s):  
At Risk ◽  
Radiation Therapy ◽  
Stereotactic Body Radiation Therapy ◽  
Stereotactic Body Radiation ◽  
Organ At Risk
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