18F-FBB 검사에서 카테터를 이용한 잔류 방사능 개선 효과
Improvement Effect of Residual Radioactivity using Catheter in 18F-FBB Examination
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In order to improve the residual radioactivity in the examination using 18F-Florbetaben (FBB) inthe nuclear medicine department, a catheter was used. The residual radioactivity from the FBB injection and theradioactivity actually administered to the patients were measured using a dose detector in 100 patients who visited thehospital. In 50 patients, the radioactivity was measured and compared after FBB injection using the butterfly needleand 3-way method, and in the remaining 50 patients, the catheter and 3-way method. The radioactivity remaining inthe syringe, butterfly needle, and catheter and the radioactivity of the actual dose administered to the patient weremeasured. The average radioactivity in the butterfly needle was 33.36 MBq, and the average dose administered tothe actual patient was 303.28 MBq. In addition, the radioactivity of the catheter was measured to be 14.07 MBq onaverage, and the actual dose administered to the patient was measured to be 305.51 MBq on average. In conclusion,the residual radioactivity was measured to be approximately 57.8% lower when injected using a catheter than wheninjected using a butterfly needle. Therefore, if a catheter is used instead of a butterfly needle when injecting FBB, theresidual amount of radiopharmaceutical is less, which can prevent unnecessary exposure of patients and radiologicaltechnologists.
Abstract
In order to improve the residual radioactivity in the examination using 18F-Florbetaben (FBB) inthe nuclear medicine department, a catheter was used. The residual radioactivity from the FBB injection and theradioactivity actually administered to the patients were measured using a dose detector in 100 patients who visited thehospital. In 50 patients, the radioactivity was measured and compared after FBB injection using the butterfly needleand 3-way method, and in the remaining 50 patients, the catheter and 3-way method. The radioactivity remaining inthe syringe, butterfly needle, and catheter and the radioactivity of the actual dose administered to the patient weremeasured. The average radioactivity in the butterfly needle was 33.36 MBq, and the average dose administered tothe actual patient was 303.28 MBq. In addition, the radioactivity of the catheter was measured to be 14.07 MBq onaverage, and the actual dose administered to the patient was measured to be 305.51 MBq on average. In conclusion,the residual radioactivity was measured to be approximately 57.8% lower when injected using a catheter than wheninjected using a butterfly needle. Therefore, if a catheter is used instead of a butterfly needle when injecting FBB, theresidual amount of radiopharmaceutical is less, which can prevent unnecessary exposure of patients and radiologicaltechnologists.