Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userDosimetry calculations in brachy therapy treatment of cervix cancer using MCNP code
حساب الجرعة في المعالجة الإشعاعية بالتماس لسرطان عنق الرحم باستخدام طريقة مونت كارلو
812
0 22
0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
جرى استخدام الكود الحاسوبي مونت كارلو (MCNP4C2) لحساب الجرعة الإشعاعية في أعضاء مهمة مثل الأمعاء، و المثانة، و المستقيم، و المهبل، و الرحم، و البنكرياس، و الطحـال، و الكبـد، و النخـاع الشوكي و الكليتين و ذلك في أثناء خضوع مريضة مصابة بسرطان عنق الرحم لجلسات معالجة إشـعاعية بالتماس (Brachytherapy) بمعدل جرعة منخفض (Rate Dose Low: LDR) بواسـطة مـصدر سيزيوم 137Cs.
Using the Mont Carlo code (MCNP4C2), doses were calculated for organs of interest such as intestine, urinary bladder, rectum, vagina uterus, pancreas, spleen, liver, spinal cord and kidneys while patient was undergoing cervix brachytherapy by LDR instrument (Cs-137).
References used
Aird, E. and Williams, J. 1993. Brachytherapy. In: Williams J; Thwaites D. Radiotherapy physics. Oxford: Oxford University Press, pp. 187-227
Benjamin, E. Nadeem, R. sachin, M. et al., 2011. Clinical Practice Guidelines in Oncology (NCCN GuidelinesTM) Cervical cancer, V1
Chiavassa, S., Aubineau-Laniece, I., Bitar, A., Lisbona, A., Barbet, J., Franck, D., Jourdain, J. R. and Bardies, M. 2006. Validation of a personalized dosimetric evaluation tool (Oedipe) for targeted radiotherapy based on the Monte Carlo MCNPX code. Phys. Med. Biol. 51, 601–616
rate research
Read More
Cervix cancer is one of the most important gynecological
cancers ,which is possible to be reduced by using early precancerous
detecting technics .
Objective : The aim of the study is to highlighten the colposcopy as a device
for early detection o
f precancerous lesions in the cervix , and compare the
results with histopathology .
As the prevalence of obesity has been increasing rapidly worldwide in recent times where
became of the most important diseases of age and the most influential public health, where a
second reason stainless prevention after smoking and leading to de
adly diseases, where it proved its
relationship with many cancers, especially cancers women such as cancer of the endometrine of the
uterus and breast cancer, where one study showed that obesity increases the progression of a range
of cancers also increase the proportion of morbidity and mortality resulting scientifically it is useful
to highlight the impact of obesity on the cellular changes and cervical colposcopy.
Research aim and justifications:To draw attention to the importance of obesity as a potential
factor to cause cellular alterations in the cervix due to it being a factor can be prevented and thus
emphasize the need to include obese within the league scanning programs.
The absence of a similar earlier study in Assad University Hospital.
Research methods and materials:Study 100 included sick of reviews the department of obstetrics
and gynecology at the Assad University Hospital in Lattakia during the period between 01/01/2012
and 01/01/2014, where they were questioning the patients and record information on Bmhar body
mass (weight, height) and did not study included patients smokers or users of oral contraceptives or
devices within the uterus (IUDs) or pregnant women or women with frequent infections.
Results :
- The existence of consensus between the results of endoscopic magnifier of the cervix and
cytological tests observed any that theory has not ignored any abnormal condition, with some cases
of false positive and this goes back to that colposcopy is a diagnostic test depends on the evaluation
of endoscopy specialist and his expertise in the interpretation of laparoscopic assets.
- Also found consensus among the results of smear and cellular screening with the presence
also some cases of false positive and this is due to not taking the biopsy directed properly, as is the
smear relatively test depends on the estimation of anatomy specialist patients and the presence of
abnormalities cell or to the extent this anomaly or for the possibility of error contained in the way
sampling or sample installed.
Conclusion:It turns out the study and depending on the value of the P value of a relationship
between obesity and assets laparoscopic and cellular cervix and thus conclude that all of Stain and
theorizing magnifier of the cervix and Sillete survey competently and are necessary can rely on
them in the initial survey for cancerous lesions and pre-cancer of the cervix in women obese.
To calculate the dose distributions of 6 MeV photon beam at variable depth
in 3D water phantom the MCNP4C2 code was used, and the simulated dose
profile was compared with that of the treatment planning computer system
(TPS), and a good agreement w
as found between them.
In conclusion, the MCNP4C2 code package presents a good tool adaptable
to get dose distributions for the 6MeV photon beam and it can be considered as
confirmed method for patient dose calculations.
The aim of the study is repairing some partially damaged
archeological wood and restoration it before being completely
damaged. For achieving this aim, the radiation technology was used in preparing some polymer blends such as Poly (vinyl alcohol)
(PVA), Poly ethylene glycol (PEG), acrylic acid (AAC), and Acryl amid (AAm) to improving adhesion forces of polymer with wood and protecting it. The results show that the best mechanical
properties was achieved by using Poly(vinyl) alcohol (PVA), acrylic
acid (AAC), and acryl amid (AAm). Also, results show that by
increasing the ratio of acrylic acid (AAC), the tensile strength,
adhesion force, hardness, transparency, are increasing. The best
tensile strength obtained was 4.79 MPa for polymer blends contains 18/% acrylic acid, 6% acryl amid, 12% poly (vinyl alcohol) when exposing to Ultra-Violet ray dose of 210 . Results, also showed that the exposing of wood to Ultra-Violet ray dose of 250 [Gry] was enough for doing sterilization, purification.
Mankind is still suffering from many diseases , and with the
development of civilization there are many diseases that appear with
different clinical types , but tumors, especially malignant , are still very
important.
Cervical cancer is the secon
d common cancer in women , as it is the cause of
more than 200.000 deaths annually. Hence the importance of early detection
of cervical cancer and of decreasing mortality.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
