نتایج جستجو برای: mird

تعداد نتایج: 217  

2015
Mohammad Ali Tajik-Mansoury Hossein Rajabi Hossein Mozdarani

Introduction: Spatial dose distribution around the radionuclides sources is required for optimized treatment planning in radioimmunotherapy. At present, the main source of data for cellular dosimetry is the s-values provided by MIRD. However, the MIRD s-values have been calculated based on analytical formula in which no electrons straggling is taken to account. In this study, we used Geant4-DNA...

2000
M. Zankl

For the scope of risk assessment in protection against ionising radiation (occupational, environmental and medical) it is necessary to determine the radiation dose to specific body organs and tissues. For this purpose, a series of models of the human body were designed in the past, together with computer codes simulating the radiation transport and energy deposition in the body. Most of the com...

Journal: :Bioinformatics 2011
Yuanwei Zhang Yifan Yang Huan Zhang Xiaohua Jiang Bo Xu Yu Xue Yunxia Cao Qian Zhai Yong Zhai Mingqing Xu Howard J. Cooke Qinghua Shi

UNLABELLED High-throughput deep-sequencing technology has generated an unprecedented number of expressed short sequence reads, presenting not only an opportunity but also a challenge for prediction of novel microRNAs. To verify the existence of candidate microRNAs, we have to show that these short sequences can be processed from candidate pre-microRNAs. However, it is laborious and time consumi...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2009
Wesley E Bolch Keith F Eckerman George Sgouros Stephen R Thomas

The internal dosimetry schema of the Medical Internal Radiation Dose (MIRD) Committee of the Society of Nuclear Medicine has provided a broad framework for assessment of the absorbed dose to whole organs, tissue subregions, voxelized tissue structures, and individual cellular compartments for use in both diagnostic and therapeutic nuclear medicine. The schema was originally published in 1968, r...

Journal: :iranian journal of radiation research 0
d. shahbazi-gahrouei department of medical physics and medical engineering, school of medicine, isfahan university of medical sciences, isfahan, iran s. nikzad

background: radioiodine therapy has proven to be an effective method in the treatment of patients with differentiated thyroid carcinoma after thyroidectomy. the scope of this study is to describe a method to obtain the dose of organs using medical internal radiation dosimetry (mird) method. at the end, the results of mird calculations were compared with thermoluminescent dosimeter (tld-100). ma...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2007
George Sgouros

Dosimetry for targeted radionuclide therapy is a relatively young field. Although initial work can be traced back to the late 1940s (1), the MIRD Committee formalism that forms the foundation for most current approaches was published in the mid 1970s (2), and the drive for improved dosimetry to meet the requirements of targeted radionuclide therapy did not begin until the 1980s. During this per...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2013
Yuni K Dewaraja Michael Ljungberg Alan J Green Pat B Zanzonico Eric C Frey Wesley E Bolch A Bertrand Brill Mark Dunphy Darrell R Fisher Roger W Howell Ruby F Meredith George Sgouros Barry W Wessels

The reliability of radiation dose estimates in internal radionuclide therapy is directly related to the accuracy of activity estimates obtained at each imaging time point. The recently published MIRD pamphlet no. 23 provided a general overview of quantitative SPECT imaging for dosimetry. The present document is the first in a series of isotope-specific guidelines that will follow MIRD 23 and fo...

Journal: :Journal of Nuclear Medicine 2009

2011
D. Shahbazi-Gahrouei S. Nikzad Daryoush Shahbazi-Gahrouei

*Corresponding author: Dr. Daryoush Shahbazi-Gahrouei, Dept. of Medical Physics and Medical Engineering, Isfahan University of Medical Sciences, Isfahan, Iran. Fax: +98 311 6688597 E-mail: [email protected] carcinoma after thyroidectomy (1-6). In this therapy method, the prescription of sodium iodine is done orally (7). Radioiodine is a beta emitting radionuclide with a physical half life ...

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