محمدی, یونس
استادیار، گروه اپیدمیولوژی، مرکز تحقیقات مدلسازی بیماریهای غیرواگیر، دانشگاه علوم پزشکی همدان، همدان، ایران
[ 1 ] - تأثیر مشاورۀ خانوادهمحور بر تهوع و استفراغ دوران بارداری: یک مطالعۀ کارآزمایی بالینی
Introduction: Nausea and vomiting is the prevalent complications of early pregnancy; the severity of its symptoms can decrease with different protections. This study was conducted to determine the effect of family-oriented consultation on nausea and vomiting in pregnant women. Methods: In this quasi-experimental study 90 pregnant women referring to Famenin health care centers in 2017 wer...
[ 2 ] - Some steps towards establishing a tertiary standard dosimetry laboratory at a radiotherapy department
Background: In order to deliver the precise dose to the target in radiotherapy, absorbed dose to water at the reference point should be assessed. When the calibration procedure is performed for a reference dosimeter in the 60Co beam of a Secondary Standard Dosimetry Laboratory (SSDL), the total uncertainty in absorbed dose to water (Dw) is estimated to be approximately 1.5%. This study attempts...
[ 3 ] - Standard edge detection algorithms versus conventional auto-contouring used for a three-dimensional rigid CT-CT matching
Background: To reduce uncertainties of patient positioning, the Computerized Tomography (CT) images acquired at the treatment planning time can be compared with those images obtained during radiation dose delivery. This can be followed during dose delivery procedure as Image Guided radiotherapy (IGRT) to verify the prescribed radiation dose delivery to the target as well as to monitor ...
[ 4 ] - Evaluation of the physical characteristic of Cerrobend blocks used for radiation therapy
Background: In Radiation Therapy, the sparing of normal tissues can be performed using either multi-leaf collimators or Cerrobend blocks. The current work focuses on the physical characteristics of Cerrobend blocks including attenuation coefficient, effective penumbra width and isodose curves undulation in penumbral regions. Materials and Methods: All measurements were performed using ...
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