Comparison of Dose Distribution of Three-Dimensional Conformal Treatment Planning and Stereotactic Radiotherapy for Large Intracranial Lesions

Radiosurgery ◽  
2002 ◽  
pp. 245-250
Author(s):  
P. Yongvithisatid ◽  
R. Pirabul ◽  
C. Tannanonta ◽  
S. Ua-apisitwong ◽  
M. Dhanachai ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Stereotactic Radiotherapy ◽  
Dose Distribution ◽  
Three Dimensional ◽  
Intracranial Lesions ◽  
Conformal Treatment

Automatic treatment planning based on three-dimensional dose distribution predicted from deep learning technique

2018 ◽  
Vol 46 (1) ◽  
pp. 370-381 ◽  
Author(s):  
Jiawei Fan ◽  
Jiazhou Wang ◽  
Zhi Chen ◽  
Chaosu Hu ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Deep Learning ◽  
Treatment Planning ◽  
Dose Distribution ◽  
Three Dimensional ◽  
Learning Technique ◽  
Automatic Treatment

Three-Dimensional and Conformal Treatment Planning

2002 ◽  
pp. 81-91
Author(s):  
Chandra M. Burman ◽  
Margie A. Hunt ◽  
Chen-Shou Chui ◽  
Thomas J. Losasso ◽  
Gikas S. Mageras ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Three Dimensional ◽  
Conformal Treatment

scholarly journals A Feasibility Study of IMRT of Lung Cancer Using Gafchromic EBT3 Film

2018 ◽  
Author(s):  
F Falahati ◽  
A Nickfarjam ◽  
M Shabani
Keyword(s):  
Treatment Planning ◽  
Dose Distribution ◽  
Organs At Risk ◽  
Three Dimensional ◽  
Optimal Dose ◽  
Good Method ◽  
Planning System ◽  
Treatment Quality ◽  
Treatment Planning System ◽  
Background Intensity

Background: Intensity modulated radiation therapy (IMRT) is an advanced method for delivery of three dimensional therapies, which provides optimal dose distribution with giving multiple nonuniform fluency to the patient. The complex dose distribution of IMRT should be checked to ensure that the accurate dose is delivered. Today, film dosimetry is a powerful tool for radiotherapy treatment Quality Assurance (QA) and a good method to verify dose distribution in phantoms. Objective: This study aimed to evaluate the accuracy of IMRT treatment planning system, Prowess Panther® software, with Gafchromic EBT3 films in a inhomogeneity phantomMethod: The IMRT plan was generated by Prowess Panther® treatment planning system (TPS) version 5.2 on a inhomogeneity phantom, then it was irradiated by ONCOR linear accelerator (Linac) with 6 (MV) photon beam energy. The Gafchromic EBT3 film located between the phantom has measured the dose distribution.­ To compare between TPS calculated doses and film measured doses, Gamma criteria 3%/3 mm, 4%/4 mm, 5%/5 mm, 6%/6 mm and 7%/7 mm Dose Difference (DD) and Distance to Agreement (DTA), respectively were used.Results: Gammas passing rates for PTV are obtained 67.5% for 3%/3mm, 78.8% for 4%/4mm, 86.3% for 5%/5mm, 91.2% for 6%/6mm and 94.3% for 7%/7mm and for organs at risk is 72.4% for 3%/3mm, 82.8% for 4%/4mm, 89.8% for 5%/5mm, 93.3% for 6%/6mm and 95.4% for 7%/7mm (respectively DD/DTA). By increasing the range of criteria the capability increased.Conclusion: The results show that the use of EBT3 film in a inhomogeneity phantoms allows us to evaluate the dose differences between the EBT3 measured dose distribution and TPS calculated dose distribution .Hence, a result Prowess Panther® TPS can be used for IMRT technique treatment.

Three dimensional conformal treatment planning with multileaf collimators

1995 ◽  
Vol 33 (5) ◽  
pp. 1081-1089 ◽  
Author(s):  
Linda Brewster ◽  
Radhe Mohan ◽  
Gig Mageras ◽  
Chandra Burman ◽  
Steven Leibel ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Three Dimensional ◽  
Multileaf Collimators ◽  
Conformal Treatment

Variation in prostate position quantitation and implications for three-dimensional conformal treatment planning

1997 ◽  
Vol 38 (1) ◽  
pp. 73-81 ◽  
Author(s):  
Edward Melian ◽  
Gig S. Mageras ◽  
Zvi Fuks ◽  
Steven A. Leibel ◽  
Anita Niehaus ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Three Dimensional ◽  
Conformal Treatment

scholarly journals Fractionated stereotactic radiotherapy for the treatment of optic nerve sheath meningiomas

2018 ◽  
Vol 20 (2) ◽  
pp. 119-125
Author(s):  
David W. Andrews
Keyword(s):  
Treatment Planning ◽  
Stereotactic Radiotherapy ◽  
New Technologies ◽  
Cranial Nerves ◽  
Fractionated Stereotactic Radiotherapy ◽  
Linear Accelerators ◽  
Stereotactic Techniques ◽  
Efficient Treatment ◽  
Stereotactic Radiation ◽  
Intracranial Lesions

Radiosurgery has become an important treatment alternative to surgery for a variety of intracranial lesions. As currently practiced, it has in fact replaced surgery as a standard of care in some instances, compliments surgery as a post-operative adjunct in others, and most commonly represents an alternative to surgery or the only treatment option. Radiosurgery techniques have evolved quickly with the development of new technologies enabling more complex yet more efficient treatment plans. As a consequence, these technologies have broadened radiosurgery applications and improved radiosurgery outcomes. Among these newer techniques, treatments involving fractionated stereotactic radiation referred to as fractionated stereotactic radiotherapy, or FSR, have emerged as a consequence of linear accelerators designed for and dedicated to stereotactic techniques. Without the logistical constraints of retrofitted general purpose linear accelerators used in radiation oncology, often available only once or twice a week, dedicated units have enabled the design of treatment paradigms that strive for an ideal treatment based on the radiobiology of the target and dose-limiting contiguous tissues.This chapter will summarize our fifteen year experience with the Varian 600SR, initially with the Radionics software more recently modified to a Novalis shaped beam radiosurgery unit, and our practice of FSR for a variety of intracranial lesions. Special attention will be devoted to tumors involving or near the special sensory cranial nerves. Given the versatility of the Novalis treatment planning platform, one has the option of comparing different treatment planning solutions at once, including stereotactic intensity-modulated radiation therapy (IMRT). For selected skull base lesions, we have found that stereotactic IMRT yields greater conformality than FSR and we will therefore include its application among fractionation strategies. 

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