PT  - JOURNAL ARTICLE
AU  - Elahe Mahmoudi
AU  - Elahe Pirayesh
AU  - Mohammad Reza Deevband
AU  - Mahasti Amoui
AU  - Mohammadali Ghodsi Rad
AU  - Mehrdad Ghorbani Rad
AU  - Mahdi Ghorbani
TI  - Radiation Dose to Medical Staff in <sup>177</sup>Lu-PSMA-DKFZ-617 therapy And Estimation of Annual Dose
AID  - 10.2967/jnmt.121.263135
DP  - 2021 Dec 01
TA  - Journal of Nuclear Medicine Technology
PG  - jnmt.121.263135
4099  - http://tech.snmjournals.org/content/early/2021/12/06/jnmt.121.263135.short
4100  - http://tech.snmjournals.org/content/early/2021/12/06/jnmt.121.263135.full
AB  - Radioligand therapy applications for metastatic castration-resistant prostate cancer have been continuously rising in most nuclear medicine departments in Iran, but to our knowledge, no one has studied the doses of staff who perform treatment procedures. The current study aimed to determine the external radiation dose received by the staff of patients treated with 177Lu- prostate-specific membrane antigen therapy with and without a lead shield. This study used a dose ionization chamber to measure dose rates to the staff at various distances from patients and determined the average time spent by staff at these distances using an ionization chamber. Deep-dose equivalent to staff was obtained. The measured deep-dose equivalent to staff per patient was whitening the range of 1.8 to 5.2 mSv using a lead shield and 3.3 to 8.1 mSv without a lead shield. This study showed that a 2-mm lead shield markedly reduced the external dose to staff.It was indicated that the skill, accuracy, and speed of action of staff can directly affect their received dose.