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Optimization of image quality and radiation does using mammography

أمثلة جودة الصورة والجرعة الإشعاعية باستخدام جهاز تصوير الثدي

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 Publication date 2015
  fields Life Science
and research's language is العربية
 Created by Shamra Editor




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In this research, the factors affecting both the quality of the image resulting from mammograms and the radiation dose received by the breast were studied through the commercial procedures and measurements of the tests for quality control of the breast imaging process used periodically in radiological medical centers and hospitals equipped with breast imaging devices.

References used
الكتاب الطبي , اورام الثدي , دار الهلال , الطبعة الأولى , القاهرة , مصر
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Treatment plans were studied for patients with lung and esophageal tumors, patients were imaged using CT-Scan (PHILIP TYPE) and the images were sent to the Treatment Planning System-TPS (ECLIPS type), the system in which the doctor identified the tum or and at-risk organs. Conventional 3D-Conformal Radiotherapy (3DCRT) and Intensity-Modulated Radiotherapy (IMRT) plans were created for the same patients. Treatment plans were compared according to the Dose Volume Histogram (DVH).It was observed that the radiation dose distribution of radiotherapy plans using IMRT technique better suited to tumor size (CTV) and protecting more organs surrounding the tumor, but it takes longer than 3DCRT technology. Therefore it is necessary to determine which patients should be treated with one technique (3DCRT or IMRT) or another technique depending on the full dose given to CTV and the time it generally takes.
إن إحدى تصنيفات التفاعلات النووية هو بارامتر الصدم b بين القذيفة والنواة الهدف مما يسمح للدراسة النظرية بتصنيف التفاعلات وفق محورين , إما تفاعل سطحي ويوافق بارامتر صدم كبير أو تفاعل غير سطحي ويوافق بارامتر صدم صغير
دراسات كوانتية لخصائص الانتقالات النووية : قمنا في هذا البحث بتحديد متعددات أقطاب أشعة غاما المرافقة لتفاعل نيوترونات حرارية مع النوى
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