An assessment of finger doses received by staff while preparing and injecting radiopharmaceuticals

Hastings, D. L.; Hillel, P. G.; Jeans, Steve; Waller, Michael L.

doi:10.1097/00006231-199708000-00013

Cited by 12 publications

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“…[1819] Several groups have used syringe shield in order to minimize radiation doses to fingers. [2223] However, syringe shield is not mandatory in India. We didn’t use syringe shield in present study.…”

Section: Discussionmentioning

confidence: 99%

Radiation exposure to nuclear medicine personnel handling positron emitters from Ge-68/Ga-68 generator

et al. 2011

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Objective:To measure the radiation exposure to nuclear medicine personnel during synthesis and injection to the patients of Ga-68 1,4,7,10-tetraazacyclododecane-N,N′,N″,N″′-tetraacetic acid (DOTA)-1-Nal3-octreotide (NOC)- (DOTA-NOC) using ring thermoluminescence dosimeters (TLDs).Materials and Methods:Synthesis of Ga-68 DOTA-NOC was done on a semi-automated system. Finger doses were measured during synthesis and injection of Ga-68 DOTA-NOC. The occupational workers wore TLDs at the base of ring finger of both hands. The finger doses of two radio chemists were measured during synthesis of Ga-68 DOTA-NOC while that of a physician during its injection to the patients.Results:Duration of the study was eight months and a total of 20 samples were prepared. During synthesis, the mean dose to base of left ring finger was 3.02 ± 1.01 mSv and to base of right ring finger was 1.96 ± 0.86 mSv. Mean dose to base of left ring finger was 1.26 ± 0.35 mSv while that to base of right ring finger was 1.03 ± 0.13 mSv during injection. The mean dose was observed to be higher during synthesis than injection. However, the difference was not significant (P = 0.27 and P = 0.18, respectively). Overall mean finger dose of left hand was 2.43 ± 1.21 mSv, whereas for the right hand the same was 1.65± 0.82 mSv.Conclusion:Finger doses to radio chemists during semi-automated synthesis of Ga-68 DOTA-NOC and that to the physician involved in injection of Ga-68 DOTA-NOC were found to be within permissible limits. Ring dosimeters must be worn for the safety of the nuclear medicine personnel involved in synthesis and injection of Ga-68 DOTA-NOC.

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Section: Discussionmentioning

confidence: 99%

Radiation exposure to nuclear medicine personnel handling positron emitters from Ge-68/Ga-68 generator

et al. 2011

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“…Using a syringe shield device during measurements of the syringe with a calibrator and during injections can reduce finger doses by 75-85%, and doses received from individual injections vary from 1 to 150 mGy, depending on the degree of difficulty experienced during injection (17)(18)(19). Also, finger doses can be reduced by use of a short-tubing butterfly cannula inserted into the vein of patients before radiopharmaceutical administration (20).…”

Section: Discussionmentioning

confidence: 99%

Measurement of doses to the extremities of nuclear medicine staff

Shousha

Farag

Hassan

2010

Radiation Effects and Defects in Solids

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Medical uses of ionizing radiation now represent >95% of all man-made radiation exposure, and is the largest single radiation source after natural background radiation. Therefore, it is important to quantify the amount of radiation received by occupational individuals to optimize the working conditions for staff, and further, to compare doses in different departments to ensure compatibility with the recommended standards. For some groups working with unsealed sources in nuclear medicine units, the hands are more heavily exposed to ionizing radiation than the rest of the body. A personal dosimetry service runs extensively in Egypt. But doses to extremities have not been measured to a wide extent. The purpose of this study was to investigate the equivalent radiation doses to the fingers for five different nuclear medicine staff occupational groups for which heavy irradiation of the hands was suspected. Finger doses were measured for (1) nuclear medicine physicians, (2) technologists, (3) nurses and (4) physicists. The fifth group contains three technicians handling 131 I, while the others handled 99m Tc. Each staff member working with the radioactive material wore two thermoluminescent dosimeters (TLDs) during the whole testing period, which lasted from 1 to 4 weeks. Staff performed their work on a regular basis throughout the month, and mean annual doses were calculated for these groups. Results showed that the mean equivalent doses to the fingers of technologist, nurse and physicist groups were 30.24 ± 14.5, 30.37 ± 17.5 and 16.3 ± 7.7 μSv/GBq, respectively. Equivalent doses for the physicians could not be calculated per unit of activity because they did not handle the radiopharmaceuticals directly. Their doses were reported in millisieverts (mSv) that accumulated in one week. Similarly, the dose to the fingers of individuals in Group 5 was estimated to be 126.13 ± 38.2 μSv/GBq. The maximum average finger dose, in this study, was noted in the technologists who handled therapeutic 131 I (2.5 mSv). In conclusion, the maximum expected annual dose to extremities is less than the annual limit (500 mSv/y).

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“…This value is relatively high when compared to the data published in the literature. Some measurements performed using TLDs during the preparation of the 99mTc in human nuclear medicine refer to doses to the fingers skin on average about 70 pSv GBq-' (Williams et al, 1987;Harding et al, 1990;Hastings et al, 1997: Mackenzie, 1997. The dose to the fingers skin here is therefore twice higher than the usual doses in human medicine.…”

Section: Discussionmentioning

confidence: 99%

Equine scintigraphy: assessment of the dose received by the personnel

2003

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RÉSUMÉ (MuriLiscript recrivrd 12 July 2002, nccrptrd 14 Novemhrr 2002)Following a request from the Permanent Secretary of the French Commission for Artificial Radiodement3 (CIREA) engaged to investigate a request for a licence related to a new scintigraphy unit dedicated to equidae, a dosimetric assessment concerning the personnel attending the examination was carried out. This scintigraphy unit depends on the Goustranville Centre for lmaging and Research on the Locomotive Diseases of Equidae (CIRALE) in the Calvados region. The dosimetric assessment was carried out for the different operators during the successive stages of the scintigraphic examination. Assuming 150 examinations per year, the annual equivalent dose to the fingers skin is 150 mSv maximum for the technologist and 2 mSv for the veterinary surgeon; the annual effective dose ranges from 0.15 to 0.45 mSv, depending on the operators.Scintigraphie équine : estimation de la dose reçue par le personnel.Suite à une demande du Secrétariat permanent de la Commission interministérielle des radioéléments artificiels (CIREA) amené à instruire une demande d'autorisation relative a une nouvelle installation dédiée à la scintigraphie équine, une évalualion dosimétrique concernant le personnel présent lors de l'examen a été réalisée. Cette installation dépend du Centre d'imagerie et de recherche sur les affections locomotrices des équidés (CIRALE) situé à Goustranville dans le Calvados. L'évaluation dosimétrique a été réalisée pour les différents opérateurs au cours des étapes successives de l'examen scintigraphique. En prenant l'hypothèse de 150 examens par an, l'équivalent de dose annuel i la peau des doigts est au maximum de 150 mSv pour le manipulateur et de 2 mSv pour le vétérinaire ; la dose efficace annuelle est quant à elle comprise entre 0,15 et 0,45 mSv selon les opérateurs.

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An assessment of finger doses received by staff while preparing and injecting radiopharmaceuticals

Cited by 12 publications

References 0 publications

Radiation exposure to nuclear medicine personnel handling positron emitters from Ge-68/Ga-68 generator

Radiation exposure to nuclear medicine personnel handling positron emitters from Ge-68/Ga-68 generator

Measurement of doses to the extremities of nuclear medicine staff

Equine scintigraphy: assessment of the dose received by the personnel

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