3 research outputs found
Synthesis of Enantiopure Fluorohydrins Using Alcohol Dehydrogenases at High Substrate Concentrations
Execution of mantle field with multileaf collimator: A simple approach
Background: Until very recently mantle field radiotherapy remained the
gold standard for the treatment of favorable early-stage
Hodgkin\u2032s lymphoma. The classic mantle includes all the major
lymph nodes above the diaphragm and extends from the inferior portion
of the mandible to the level of the insertion of the diaphragm. Aims:
To describe a simple technique that has been devised to treat the
mantle field with the help of multileaf collimator and using computed
tomography (CT)-based treatment planning. Materials and Methods: CT
scan was performed with the patient in the supine position and the
datasets were transferred to the Eclipse\u2122 treatment planning
system. Elekta Precise\u2122 linear accelerator equipped with 40 pairs
of multileaf collimator (MLC) was used for the execution of the mantle
field. The MLC\u2032s shapes were designed to take the shape of the
conventional customized blocks used for treatment of mantle field. The
anterior mantle field was divided into three separate MLC segments with
the collimator kept at 0\ub0. The first MLC segment was shaped to
cover the neck, clavicular regions, and mediastinum. The second and the
third MLC segments covered the right and left axilla, respectively. The
posterior fields were opposed to the anterior subfields in a similar
fashion. The dose was prescribed at the midplane, using reference
points. Results and Conclusion: The technique described in this study
is very simple, easy to implement, and avoids unnecessary delay in the
execution of the mantle field. The mantle field can be easily shaped
with the multileaf collimators, without any collimator rotation