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International Journal of Radiation Research، جلد ۷، شماره ۴، صفحات ۲۰۱-۲۰۶
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عنوان انگلیسی Individual virtual phantom reconstruction for organ dosimetry based on standard available phantoms
چکیده انگلیسی مقاله Background: In nuclear medicine application often it is required to use computational methods for evaluation of organ absorbed dose. Monte Carlo simulation and phantoms have been used in many works before. The shape, size and volume in organs are varied, and this variation will produce error in dose calculation if no correction is applied. Materials and Methods: A computational framework for constructing individual phantom for dosimetry was performed on five liver CT scan data sets of Japanese normal individuals. The Zubal phantom was used as an original phantom to be adjusted by each individual data set. This registration was done by Spherical Harmonics (SH) and Thin-Plate Spline methods. Hausdorff distance was calculated for each case. Results: Result of Hausdorff distance for five individual phantoms showed that before registration ranged from 140.9 to 192.1, and after registration it changed to 52.5 to 76.7. This was caused by index similarity ranged from %56.4 to %70.3. Conclusion: A new and automatic three-dimensional (3D) phantom construction approach was suggested for individual internal dosimetry simulation via Spherical Harmonics (SH) and Thin-Plate Spline methods. The results showed that the individual comparable phantom can be calculated with acceptable accuracy using geometric registration. This method could be used for race-specific statistical phantom modeling with major application in nuclear medicine for absorbed dose calculation. Iran. J. Radiat. Res., 2010 7 (4): 201-206
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله f باباپور مفرد | f babapour mofrad
faculty of engineering, science and research branch, islamic azad university, tehran, iran

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

r آقایی زاده ظروفی | r aghaeizadeh zoroofi
control and intelligent processing center of excellence, school of electrical and computer engineering, college of engineering, university of tehran, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

a عباسپور طهرانی فرد | a abbaspour tehrani fard
electrical and electronic engineering school, sharif university of technology, tehran, iran

سازمان اصلی تایید شده: دانشگاه صنعتی شریف (Sharif university of technology)

sh شهرام | sh. akhlaghpoor
department of interventional radiology, sina hospital, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

y w chen | y w chen
college of information and science, ristumeikan university, shiga, japan


y sato | y. sato
division of image analysis, graduate school of medicine, osaka university, osaka, japan
نشانی اینترنتی http://www.ijrr.com/browse.php?a_code=A-10-1-337&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده تحقیق بدیع
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