scholarly journals Field-in-Field Technique With Intrafractionally Modulated Junction Shifts for Craniospinal Irradiation Planning With Three-Dimensional Conformal Radiation Therapy

Cureus ◽  
2021 ◽  
Author(s):  
Shabbir Hussain ◽  
Abdul Hafeez ◽  
Hira Nazim ◽  
Rahim Gohar ◽  
Muhammad Jawaid Mallick
Keyword(s):  
Radiation Therapy ◽  
Three Dimensional ◽  
Craniospinal Irradiation ◽  
Conformal Radiation Therapy ◽  
Field Technique ◽  
Irradiation Planning

Dosimetric comparison of integral dose for different techniques of craniospinal irradiation

2020 ◽  
pp. 1-6
Author(s):  
Brijesh Goswami ◽  
Rakesh Kumar Jain ◽  
Suresh Yadav ◽  
Sunil Kumar ◽  
Saji Oommen ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Linear Accelerator ◽  
Organs At Risk ◽  
Three Dimensional ◽  
Intensity Modulated Radiation Therapy ◽  
Target Volume ◽  
Craniospinal Irradiation ◽  
Conformal Radiation Therapy ◽  
Integral Dose ◽  
Treatment Techniques

Abstract Aim: Comparison of the integral dose (ID) delivered to organs at risk (OAR), non-target body and target body by using different techniques of craniospinal irradiation (CSI). Materials and methods: Ten CSI patients (medulloblastoma) already planned and treated either with linear accelerator three-dimensional conformal radiation therapy (Linac-3DCRT) technique or with linear accelerator RapidArc (Linac-RapidArc) technique by Novalis-Tx Linac machine have been analysed. Retrospectively, these patients are again planned on Radixact-X9 Linac with Helical, Direct-3DCRT and Direct-intensity-modulated radiation therapy (Direct-IMRT) techniques. The dose prescription to planning target volume brain (PTV-Brain) and PTV-Spine is 36 Gy in 20 fractions and is kept the same for all techniques. The target body, non-target body, OARs and total body dose are compared. Results: ID is lowest in the RapidArc plan for every patient in comparison to Helical and Direct-IMRT. The ID for Body-PTV was found slightly higher in the RapidArc plan in comparison to 3DCRT plans. But there is better normal tissue sparing for most of the OARs in RapidArc plans if it compares with 3DCRT plans. Findings: RapidArc is a better alternative for the treatment of CSI. It provides better target coverage and better OARs sparing from any other treatment techniques.

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