Ultrasensitive serum thyroglobulin the usefulness of evaluation

Ultrasensitive serum thyroglobulin의 유용성 평가

  • Lee, Sun Ho (Department of Nuclear Medicine, Asan Medical Center) ;
  • Cho, Eun Bit (Department of Nuclear Medicine, Asan Medical Center) ;
  • Shin, Young Kyun (Department of Nuclear Medicine, Asan Medical Center) ;
  • Lee, Young Ji (Department of Nuclear Medicine, Asan Medical Center) ;
  • Yoo, Seun Hee (Department of Nuclear Medicine, Asan Medical Center) ;
  • Kim, Nyun Ok (Department of Nuclear Medicine, Asan Medical Center)
  • 이선호 (서울아산병원 핵의학과) ;
  • 조은빛 (서울아산병원 핵의학과) ;
  • 신영균 (서울아산병원 핵의학과) ;
  • 이영지 (서울아산병원 핵의학과) ;
  • 유선희 (서울아산병원 핵의학과) ;
  • 김년옥 (서울아산병원 핵의학과)
  • Received : 2015.10.02
  • Accepted : 2015.10.13
  • Published : 2015.10.31

Abstract

Purpose Serum Thyroglobulin measurement is a major tool for the follow-up of differentiated thyroid cancer (DTC) patients. Thyroglobulin is Normal thyroid tissue, or thyroid cancer tissue produced only. Thyroid hormone to a halt without Tg differentiation of thyroid cancer recurrence just by measuring how to decide whether there was increasing expectations if I can do it instead. Therefore, in excellent sensitivity Tg new inspection of the functional sensitivity by measuring the looked to evaluate the usefulness of reagents. Thyroidectomy is measuring the numbers Tg (total thyroidectomy) remaining thyroid ablation and radioactive iodine (radioactive iodine remnant ablation, RRA) DTC in patients being diagnosed with or help predict the remaining early detection of thyroid cancer recurrence. Materials and Methods Agent that I'm currently using Tg of the measurements of low clinical specimen for a second drainage of the three (0.08 0.17, 0.98, ng/mL) within the scope of the dilute magnification (2, 4, 8, 16, 32 times) by dilute Intraassy (n=10) and Interassay (n=10) out in no time. Concentration value according to the coefficient of variation and the mean and standard deviation of each measurement (Coefficient of variation, CV) the absolute value of the measured values that corresponds to 20 percent target a coefficient of variation of CV Find the value of the concentration of the functional sensitivity measurement did. Also, analytical sensitivity with recovery rates, Dilution test inspections, and interrelationship, compared. Results Sensitivity is an excellent analytical sensitivity within the prosecutor kit Tg 0.006 ng/mL, and core analytical sensitivity, conducted by the 0.006 ng/mL to same conclusion. Be rather high to 142 percent recovery rate was 60 to measurement and functional sensitivity, 0.01766 ng/mL(Intraassay n=10) was measured at. CBC is relatively good correlation as ($R^2=0.949$) the correlation. Conclusion Recently ultrasensitive thyroglobulin this clinically important indicators of the previous kit and demands are lower than sensitivity to the measurement results. Therefore, ultrasensitive thyroglobulin test is correlated that there would be useful in value in nuclear medicine the thyroid gland.

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