Design and Test of Automatic Dispensing and Injecting System for Positron Radiopharmaceuticals.
10.3881/j.issn.1000-503X.13840
- Author:
Ning GUO
1
;
Tong WANG
1
;
Li HUO
1
;
Fang LI
1
;
Li-Jie LIU
2
;
Yi LI
1
;
Jian-Tao BA
1
Author Information
1. Department of Nuclear Medicine,PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
2. Department of Nuclear Medicine,Beijing Tongren Hospital,Capital Medical University,Beijing 100730,China.
- Publication Type:Journal Article
- Keywords:
automatic dispensing;
automatic injection;
positron radiopharmaceutical;
reciprocating actuator;
steeper motor
- MeSH:
Electrons;
Occupational Exposure/analysis*;
Radiation Dosage;
Radiation Protection;
Radiopharmaceuticals
- From:
Acta Academiae Medicinae Sinicae
2021;43(3):429-434
- CountryChina
- Language:Chinese
-
Abstract:
Objective To design a novel automatic dispensing and injecting system of positron radiopharmaceuticals,for precise dose dispensing,simplified operation,and reduction of occupational radiation exposure. Methods The automatic dispensing and injecting system was fabricated with tungsten alloy as the shielding material.The performance and radiation protection of the device were assessed. Results The total time of injection using the automatic dispensing and injecting system was about 60 s.The ratio of successful injection in stability test was 100%.The deviation of the dispensing dose with the system was ≤3%.With the tungsten alloy shield(40 mmPb of the cabinet,60 mmPb of the countertop,15 mmPb of the protective shield,and 50 mmPb of the inbuilt jar for radiopharmaceuticals),the average dose rate at 30 cm from the device was 1.44 μSv/h,and the radiation dose at the operator's extremity was reduced by 99%. Conclusions This automatic dispensing and injecting system of positron radiopharmaceuticals is easy to operate with precise dispensing dose.It is safe and meets the requirements of radiation protection.
