Features of radionuclide imaging for suspected postoperative thyroid cancer recurrence

«Radiation and Risk», 2013, vol. 22, No. 2, pp.52-60

Authors

Gorobets V.F. – Lead. Res., C. Sc., Med., Medical Radiological Research Center of the Russian Ministry of Health, Obninsk. Contacts: 4 Korolyov str., Obninsk, Kaluga Region, Russia, 249036. Tel.: (48439) 9-30-11; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. .
Davydov G.A. – Head of Dep., C. Sc., Med., Medical Radiological Research Center of the Russian Ministry of Health, Obninsk.
Oleinik N.A. – Physician-Radiologist, Medical Radiological Research Center of the Russian Ministry of Health, Obninsk.
Gorobets N.Ya. – Lead. Programmist, Medical Radiological Research Center of the Russian Ministry of Health, Obninsk.
Davydova E.V. – Researcher, Medical Radiological Research Center of the Russian Ministry of Health, Obninsk.

Abstract

Postoperative ^99mTc-pertechnetate and ^99mTc-MIBI scintigraphy for suspected thyroid cancer recur-rence was performed in 34 patients underwent radical surgery. The recurrence was detected in 24 patients, no recurrence was found in 10 patients. Efficacy of radionuclide imaging for suspected thyroid cancer recurrence was estimated by sensitivity – 62.5 %, specificity – 80.0 % and total accuracy – 67.6 %. The technique was found to be less effective if a size of a recurrent tumor is less than 1 centimeter.

Key  words: postoperative relapse of thyroid cancer, radionuclide diagnostics, ^99mTc-pertechnetate, ^99mTc-MIBI, size of relapsed cancer nodules.

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