نتایج جستجو برای: I-131 and Tc-99m Thyroid ORNL-MIRD phantom MCNPX

تعداد نتایج: 17085756  

Ali Rouhi sesari Alireza Sadremomtaz, Fatemeh Hasanpour

Introduction: Thyroid cancer is at the ninth from ten of common malignant cancer. A man has higher risk to get Thyroid cancer that a woman has. This organ is lain near human neck. The use of radioactive I-131, I-123 and Tc-99m for diagnosis of thyroid cancer has a risk where other organs around Thyroid will accept dose of radiation. One of the risks is large dose which is accep...

ژورنال: سنجش و ایمنی پرتو 2020

Thyroid scanning is performed to examine the thyroid gland disorders using 99mTc. Through the obtained images can evaluate the size of the thyroid gland, the amount of its removal compared with the salivary gland, examine the thyroid nodules and its performance impairments. According to the scan view, it is possible to differentiate between hot and cold thyroid nodules that need different thera...

Journal: :Annals of the Academy of Medicine, Singapore 2002
J Sriprapaporn C Toopmongkol B Satayaban N Chantamoon

OBJECTIVE To evaluate the potential of technetium-99m methoxyisobutylisonitrile (Tc-99m MIBI) imaging as an alternative to I-131 total-body scan (I-131 TBS) for the follow-up of patients with differentiated thyroid carcinoma (DTC). PATIENTS AND METHODS We performed 87 Tc-99m MIBI imaging studies in 76 DTC patients who had total or near-total thyroidectomy followed by a radioactive iodine abla...

2016
Xiaomei Pan Dong Duan Yuquan Zhu Hua Pang Lili Guan Zhixiang Lv

OBJECTIVE The aim of this study is to investigate the use of (99m)Tc-methoxyisobutylisonitrile (MIBI) imaging for evaluating the treatment response of differentiated thyroid cancer (DTC) after the first administration of a high dose of (131)I. METHODS Patients with DTC who received (131)I therapy underwent (99m)Tc-MIBI imaging after successive increases in the therapeutic dose of (131)I, and ...

D Shahbazi-Gahrouei P Shokrani S Nikzad Sh Monadi Z Shahi

  Introduction: In patients with thyroid carcinoma, radiation absorbed doses of the thyroid and surrounding tissues is important to weigh risk and benefit considerations. In nuclear medicine, the accuracy of absorbed dose of internally distributed radionuclides is estimated by different methods such as MIRD and direct method using TLD. The aim of this study is using T...

Journal: :Annals of nuclear medicine 1999
Y Yamamoto Y Nishiyama Y Ono K Satoh M Ohkawa Y Kawasaki M Tanabe

Accumulation of both Tc-99m pertechnetate and radioiodine upon scintigraphy in thyroid carcinoma and/or in its metastases is a rare occurrence. In this paper we describe a patient who was taken to surgery for left lobectomy of the thyroid with follicular adenocarcinoma and who had accumulation of both I-131 and Tc-99m pertechnetate in lung metastases. The accumulation of I-131 was less than tha...

Journal: :Acta medica Okayama 2005
Shunji Fujie Yoshihiro Okumura Shuhei Sato Shiro Akaki Kuniaki Katsui Kengo Himei Mitsuhiro Takemoto Susumu Kanazawa

We investigated the diagnostic capabilities of I-131, Tl-201, and Tc-99m-MIBI (hexakis-2-methoxyisobutyl- isonitrile) scintigraphy for thyroid cancer metastases after total thyroidectomy over the entire body and for every locus before and after thyroid bed ablation. After total thyroidectomy of thyroid cancer, 36 cases were subjected to I-131 treatment 64 times. They consisted of 17 men and 19 ...

2005
Shunji Fujie Yoshihiro Okumura Shuhei Sato Shiro Akaki Kuniaki Katsui Kengo Himei Mitsuhiro Takemoto Susumu Kanazawa

We investigated the diagnostic capabilities of I-131, Tl-201, and Tc-99m-MIBI (hexakis-2-methoxyisobutyl-isonitrile) scintigraphy for thyroid cancer metastases after total thyroidectomy over the entire body and for every locus before and after thyroid bed ablation. After total thyroidectomy of thyroid cancer, 36 cases were subjected to I-131 treatment 64 times. They consisted of 17 men and 19 w...

2014
Anders Josefsson Eva Forssell-Aronsson

BACKGROUND RADIOIODINE IS ROUTINELY USED OR PROPOSED FOR DIAGNOSTIC AND THERAPEUTIC PURPOSES: (123)I, (125)I and (131)I for diagnostics and (125)I and (131)I for therapy. When radioiodine-labelled pharmaceuticals are administered to the body, radioiodide might be released into the circulation and taken up by the thyroid gland, which may then be an organ at risk. The aim of this study was to com...

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
محسن ساغری m saghari حمیدرضا سلیمانی ابیانه h soleimani abyaneh

thyroid scintigraphy has been helpful in detecting and evaluation of thyroid nodules. sodium pertechnetate tc-99m is the most commonly used radionuclide for thyroid imaging because of its general availability, favorable dosimetric characteristics and low cost. but, there are reports of occasional disparity in isotope uptake in lesions compared with radioiodide. in order to determine percentage ...

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