Decreased Expression of Hsa_circ_0112879 in Oral Squamous Cell Carcinoma and Its Clinical Significance by Hongyu Yang* in Novel Approaches in Cancer Study_ Journal of Cancer Research
Abstract
Background:
The objective of this study was to estimate the dose received by the spinal cord and the
esophagus by the use of TLD in a Plexiglas phantom.
Methods:
The study was carried out with a Plexiglas phantom that was specifically
designed for this purpose. Three Plexiglas phantoms of the neck and upper mid
thoracic area were built based on the specifications of “reference man” and
Body Mass Index (B.M.I) by the use of Corel Draw 8 software. The phantoms were
heavy, medium and light built in size. The dose was determined by placing TLD
cheaps at each marked location inside each phantom and exposing them to
radiation for ten different set-ups.
Results:
Based on different measurements it was concluded that using a gantry angle of
57o, a 30o wedge and a 15o rotation of the head of the table toward the gantry
head will result in esophagus and spinal cord
receiving the maximum and minimum dose respectively.
Conclusion:
Based on our results a better dose homogeneity is achieved for dose delivered
to esophagus than corresponding values for spinal cord
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