scholarly journals A preliminary study on a multiresolution‐level inverse planning approach for Gamma Knife radiosurgery

2020 ◽  
Vol 47 (4) ◽  
pp. 1523-1532 ◽  
Author(s):  
Zhen Tian ◽  
Xiaofeng Yang ◽  
Matt Giles ◽  
Tonghe Wang ◽  
Hao Gao ◽  
...  
Keyword(s):  
Gamma Knife ◽  
Gamma Knife Radiosurgery ◽  
Inverse Planning ◽  
Planning Approach ◽  
Preliminary Study

scholarly journals A real-time optimal inverse planning for Gamma Knife radiosurgery by convex optimization: description of the system and first dosimetry data

2018 ◽  
Vol 129 (Suppl1) ◽  
pp. 111-117 ◽  
Author(s):  
Marc Levivier ◽  
Rafael E. Carrillo ◽  
Rémi Charrier ◽  
André Martin ◽  
Jean-Philippe Thiran
Keyword(s):  
Convex Optimization ◽  
Real Time ◽  
Treatment Planning ◽  
Gamma Knife ◽  
Gamma Knife Radiosurgery ◽  
Planning System ◽  
Optimal Plan ◽  
Inverse Planning ◽  
Planning Approach ◽  
Dosimetry Data

OBJECTIVEThe authors developed a new, real-time interactive inverse planning approach, based on a fully convex framework, to be used for Gamma Knife radiosurgery.METHODSThe convex framework is based on the precomputation of a dictionary composed of the individual dose distributions of all possible shots, considering all their possible locations, sizes, and shapes inside the target volume. The convex problem is solved to determine the plan, i.e., which shots and with which weights, that will actually be used, considering a sparsity constraint on the shots to fulfill the constraints while minimizing the beam-on time. The system is called IntuitivePlan and allows data to be transferred from generated dose plans into the Gamma Knife treatment planning software for further dosimetry evaluation.RESULTSThe system has been very efficiently implemented, and an optimal plan is usually obtained in less than 1 to 2 minutes, depending on the complexity of the problem, on a desktop computer or in only a few minutes on a high-end laptop. Dosimetry data from 5 cases, 2 meningiomas and 3 vestibular schwannomas, were generated with IntuitivePlan. Results of evaluation of the dosimetry characteristics are very satisfactory and adequate in terms of conformity, selectivity, gradient, protection of organs at risk, and treatment time.CONCLUSIONSThe possibility of using optimal, interactive real-time inverse planning in conjunction with the Leksell Gamma Knife opens new perspectives in radiosurgery, especially considering the potential use of the full capabilities of the latest generations of the Leksell Gamma Knife. This approach gives new users the possibility of using the system for easier and quicker access to good-quality plans with a shorter technical training period and opens avenues for new planning strategies for expert users. The use of a convex optimization approach allows an optimal plan to be provided in a very short processing time. This way, innovative graphical user interfaces can be developed, allowing the user to interact directly with the planning system to graphically define the desired dose map and to modify on-the-fly the dose map by moving, in a very user-friendly manner, the isodose surfaces of an initial plan. Further independent quantitative prospective evaluation comparing inverse planned and forward planned cases is warranted to validate this novel and promising treatment planning approach.

SU-E-T-14: A Comparative Study Between Forward and Inverse Planning in Gamma Knife Radiosurgery for Acoustic Neuroma Tumours

2015 ◽  
Vol 42 (6Part11) ◽  
pp. 3333-3333
Author(s):  
N Gopishankar ◽  
Priyanka Agarwal ◽  
Raj Kishor Bisht ◽  
S S Kale ◽  
G K Rath ◽  
...  
Keyword(s):  
Comparative Study ◽  
Gamma Knife ◽  
Acoustic Neuroma ◽  
Gamma Knife Radiosurgery ◽  
Inverse Planning

scholarly journals Gamma knife radiosurgery for treatment of cavernous sinus meningioma patients in Tangerang, Indonesia: A preliminary study

2017 ◽  
Vol 28 ◽  
pp. x36-x37
Author(s):  
P. Wibisono ◽  
A.D. Vatvani ◽  
S.M. Evangelina ◽  
A.G. Widjaja ◽  
E. Soediatmoko ◽  
...  
Keyword(s):  
Gamma Knife ◽  
Cavernous Sinus ◽  
Gamma Knife Radiosurgery ◽  
Cavernous Sinus Meningioma ◽  
Preliminary Study

Real-time inverse planning for Gamma Knife radiosurgery

2003 ◽  
Vol 30 (11) ◽  
pp. 2988-2995 ◽  
Author(s):  
Q. Jackie Wu ◽  
Vira Chankong ◽  
Suradet Jitprapaikulsarn ◽  
Barry W. Wessels ◽  
Douglas B. Einstein ◽  
...  
Keyword(s):  
Real Time ◽  
Gamma Knife ◽  
Gamma Knife Radiosurgery ◽  
Inverse Planning
Sign in / Sign up

Export Citation Format

Share Document