Assessment of Day’s Methods for Critical Organs Doses Calculation of Breast Cancer Irradiation Compared with TLD
Journal of medical physics and applied sciences is an international peer reviwed journal aiming to publish the most relevant and recent research works across the world. Medical Physicists will contribute to maintaining and improving the quality, safety and cost-effectiveness of healthcare services through patient-oriented activities requiring expert action, involvement or advice regarding the specification, selection, acceptance testing, commissioning, quality assurance/control and optimised clinical use of medical devices and regarding patient risks and protection from associated physical agents (e.g. x-rays, electromagnetic fields, laser light, radionuclides) including the prevention of unintended or accidental exposures; all activities will be based on current best evidence or own scientific research when the available evidence is not sufficient. Medical physics is also called biomedical physics, medical biophysics or applied physics in medicine is, generally speaking, the application of physics concepts, theories and methods to medicine or healthcare.
We are sharing one of the most cited article from our journal. Article entitled “Assessment of Day’s Methods for Critical Organs Doses Calculation of Breast Cancer Irradiation Compared with TLD” was well written by Dr. Mohammed A. Ali Omer.
The aim of this study was to assess the dose received by critical organs (eye, thyroid gland and the shoulder joint) in breast cancer irradiated patients using Day’s method technique and thermo-luminescence dosimeter TLD in addition to involved age group and cancer histological types. The study designed as experimental and retrospective study implies the location of critical organs, back scattered factor, source surface distance, patient’s ages and the histological cancer types. Excel data analysis revealed that: breast cancer has been observed among age groups of 18-23 and 24-29 years old and peaking at 30% among the age groups of 42-47 years old; the common histological types were ductal (57%), lobular (18%) and medullary (10%). The dose% received by critical organs decreased linearly and significantly (R2=0.6) by 5% cm-1, 1.3% cm-1 and 9.7% cm-1 (from supraclavicular) and 1.44% cm-1, 9.86% cm-1 and 1.83% cm-1 (from tangential field) respectively as the distance increase from the field boarder. Out of applied tumor dose (TD=4500 cGy); the critical organs received: 36, 319.5 and 382.5 cGy (Day’s method-anterior supraclavicular) respectively and 58.5, 355.5 and 436.5 cGy (TLD method). And from tangential field they received 13.5, 58.5 and 103 cGy (Day’s method) and 27, 99 and 135 cGy (TLD method). Day’s method generally showed only 0.6% less differs compared to TLD measurement.
Here is the link to view complete article: https://medicalphysics.imedpub.com/assessment-of-days-methods-for-criticalorgans-doses-calculation-of-breast-cancerirradiation-compared-with-tld.php?aid=20708
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Journal of Medical Physics and Applied Sciences