Öz
In nuclear medicine, the dose received by the critical organs becomes important due to the radioisotopes placed inside the body. Medical applications are among the main causes of radiation exposure to the general population. In these applications, Computed Tomography (CT) scans are the primary source, while nuclear medicine is the second largest. The informed decisions that must be made regarding the use of nuclear medicine procedures require a better understanding of the absorbed radiation dose and the associated risks. In this study, when iodine radioisotope I-131 inserted into the thyroid gland of boys aged 0, 1, 5, 10 and 15, change of the absorbed dose of the thyroid gland, thymus and lymph nodes was investigated by the Monte Carlo based NCINM (National Cancer Institute Dosimetry System for Nuclear Medicine) code.
Anahtar Kelimeler
Kaynakça
- Andreo, P., 1991. Monte Carlo techniques in medical radiation physics, Phys Med Biol, 36, 861-920.
- Eckerman, K.F., Cristy, E. and Ryman, J.C., 1996. The ORNL Mathematical Phantom Series (Oak Ridge National Laboratory).
- ICRP, 1987. Data for use in protection against external radiation Ann. ICRP 17, 1–132.
- ICRP, 1991. 1990 recommendations of the international commission on radiological protection ICRP publication 60, Ann. ICRP 21, 1–201.
- ICRP, 2008. ICRP Publication 107: Nuclear Decay Cata for Dosimetric Calculations, ICRP Publ. 107 Ann. ICRP 38-3,1-123.
- ICRP, 1996. Conversion coefficients for use in radiological protection against external radiation Ann. ICRP 26, 1–205.
- ICRP, 2010. Conversion coefficients for radiological protection quantities for external radiation exposures Ann. ICRP 40, 1–258.
- Loevinger, R., Budinger, T.F., Thomas, F. and Watson, E.E., 1991. MIRD Primer for Absorbed Dose Calculations revised edition (New York: Society of Nuclear Medicine)
- Smith, T., 1984. Internal Exposure of Patients and Staff in Diagnostic Nuclear Medicine Procedures, J Soc Radiol Prot, 4(2), 45-57
- Toohey, R.E., Stabin, M.G. and Watson, E.E., 2000. Internal Radiation Dosimetry: Principles and Applications. The AAPM/RSNA Physics Tutorial for Residents, 20, 533-546.
- Xu, X.G., 2014. An exponential growth of computational phantom research in radiation protection, imaging, and radiotherapy: a review of the fifty-year history, Phys Med Biol, 59, R233–302.
Öz
Nükleer tıpta kritik organların aldığı doz, vücut içine yerleştirilen radyoizotoplar nedeniyle önem kazanmaktadır. Tıbbi uygulamalar, genel popülasyonun radyasyona maruz kalmasının ana nedenleri arasındadır. Bu uygulamalarda, Bilgisayarlı Tomografi (BT) taramaları birincil kaynak olurken, nükleer tıp ise ikinci en büyük kaynaktır. Nükleer tıp prosedürlerinin kullanımına ilişkin olarak verilmesi gereken bilinçli kararlar, soğurulan radyasyon dozunun ve ilişkili risklerin daha iyi anlaşılmasını gerektirir. Bu çalışmada Monte Carlo merkezli NCINM (Nükleer Tıp için Ulusal Kanser Enstitüsü Dozimetri Sistemi) kodu yardımıyla 0, 1, 5, 10 ve 15 yaşındaki erkek çocukların tiroit bezine iyot radyoizotopu, I-131 yerleştirildiğinde tiroit bezi, timüs ve lenf bezlerinin absorbe edilen dozunun değişimi araştırılmıştır.
Anahtar Kelimeler
Kaynakça
- Andreo, P., 1991. Monte Carlo techniques in medical radiation physics, Phys Med Biol, 36, 861-920.
- Eckerman, K.F., Cristy, E. and Ryman, J.C., 1996. The ORNL Mathematical Phantom Series (Oak Ridge National Laboratory).
- ICRP, 1987. Data for use in protection against external radiation Ann. ICRP 17, 1–132.
- ICRP, 1991. 1990 recommendations of the international commission on radiological protection ICRP publication 60, Ann. ICRP 21, 1–201.
- ICRP, 2008. ICRP Publication 107: Nuclear Decay Cata for Dosimetric Calculations, ICRP Publ. 107 Ann. ICRP 38-3,1-123.
- ICRP, 1996. Conversion coefficients for use in radiological protection against external radiation Ann. ICRP 26, 1–205.
- ICRP, 2010. Conversion coefficients for radiological protection quantities for external radiation exposures Ann. ICRP 40, 1–258.
- Loevinger, R., Budinger, T.F., Thomas, F. and Watson, E.E., 1991. MIRD Primer for Absorbed Dose Calculations revised edition (New York: Society of Nuclear Medicine)
- Smith, T., 1984. Internal Exposure of Patients and Staff in Diagnostic Nuclear Medicine Procedures, J Soc Radiol Prot, 4(2), 45-57
- Toohey, R.E., Stabin, M.G. and Watson, E.E., 2000. Internal Radiation Dosimetry: Principles and Applications. The AAPM/RSNA Physics Tutorial for Residents, 20, 533-546.
- Xu, X.G., 2014. An exponential growth of computational phantom research in radiation protection, imaging, and radiotherapy: a review of the fifty-year history, Phys Med Biol, 59, R233–302.
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Klasik Fizik (Diğer) |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 15 Aralık 2021 |
| Gönderilme Tarihi | 23 Ağustos 2021 |
| Yayımlandığı Sayı | Yıl 2021 |