scholarly journals Radiobiological evaluation considering setup error on single‐isocenter irradiation in stereotactic radiosurgery

2021 ◽  
Author(s):  
Hisashi Nakano ◽  
Satoshi Tanabe ◽  
Ryuta Sasamoto ◽  
Takeshi Takizawa ◽  
Satoru Utsunomiya ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Setup Error ◽  
Single Isocenter

scholarly journals Effect of setup error in the single‐isocenter technique on stereotactic radiosurgery for multiple brain metastases

2020 ◽  
Vol 21 (12) ◽  
pp. 155-165
Author(s):  
Hisashi Nakano ◽  
Satoshi Tanabe ◽  
Satoru Utsunomiya ◽  
Takumi Yamada ◽  
Ryuta Sasamoto ◽  
...  
Keyword(s):  
Brain Metastases ◽  
Stereotactic Radiosurgery ◽  
Setup Error ◽  
Multiple Brain Metastases ◽  
Single Isocenter

scholarly journals Quality of Automated Stereotactic Radiosurgery Plans in Patients with 4 to 10 Brain Metastases

Cancers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 3458
Author(s):  
Anna Petoukhova ◽  
Roland Snijder ◽  
Rudolf Wiggenraad ◽  
Linda de Boer-de Wit ◽  
Ivonne Mudde-van der Wouden ◽  
...  
Keyword(s):  
Brain Metastases ◽  
Stereotactic Radiosurgery ◽  
Irradiation Time ◽  
Intensity Modulated Radiotherapy ◽  
Pass Rate ◽  
Conformity Index ◽  
Index Gradient ◽  
Single Isocenter ◽  
Volumetric Modulated Arc Radiotherapy

The purpose was to compare linac-based stereotactic radiosurgery and hypofractionated radiotherapy plan quality of automated planning, intensity modulated radiotherapy (IMRT) and manual dynamic conformal arc (DCA) plans as well as single- and multiple-isocenter techniques for multiple brain metastases (BM). For twelve patients with four to ten BM, seven non-coplanar linac-based plans were created: a manually planned DCA plan with a separate isocenter for each metastasis, a single-isocenter dynamic IMRT plan, an automatically generated single-isocenter volumetric modulated arc radiotherapy (VMAT) plan, four automatically generated single-isocenter DCA plans with three or five couch angles, with high or low sparing of normal tissue. Paddick conformity index, gradient index (GI), mean dose, total V12Gy and V5Gy of uninvolved brain, number of monitor units (MUs), irradiation time and pass rate were compared. The GI was significantly higher for VMAT than for separate-isocenter, IMRT, and all automatically generated plans. The number of MUs was lowest for VMAT, followed by automatically generated DCA and IMRT plans and highest for manual DCA plans. Irradiation time was the shortest for automatically planned DCA plans. Automatically generated linac-based single-isocenter plans for multiple BM reduce the number of MUs and irradiation time with at least comparable GI and V5Gy relative to the reference separate-isocenter DCA plans.

scholarly journals RTRB-11MULTIPLE BRAIN METASTASES TREATED WITH SINGLE-ISOCENTER LINAC-BASED STEREOTACTIC RADIOSURGERY (SRS)

2015 ◽  
Vol 17 (suppl 5) ◽  
pp. v197.3-v197
Author(s):  
Benjamin W. Corn ◽  
Natan Shtraus ◽  
Yaron Meir ◽  
Nir Honig ◽  
Deborah T. Blumenthal ◽  
...  
Keyword(s):  
Brain Metastases ◽  
Stereotactic Radiosurgery ◽  
Single Isocenter
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