• 제목/요약/키워드: Radioactive iodine

검색결과 188건 처리시간 0.03초

갑상선(甲狀線) 분화암(分化癌)의 방사성 요드-131 치료(治療)에 대한 임상적(臨庶的) 고찰(考察) (A Clinical Review of Radioactive Iodine-131 Therapy in Differentiated Thyroid Carcinoma)

  • 박운규;이대영;전성은;오성수;정을삼
    • 대한두경부종양학회지
    • /
    • 제12권1호
    • /
    • pp.32-42
    • /
    • 1996
  • This study was desinged to evaluate the effect of radioactive iodine-131 therapy in differentiated thyroid carcinoma treated at the Presbyterian Medical Center, Chonju during the 20-year period from 1975 to 1994. The authors reviewed 246 patients who received radioactive iodine-131. An analysis of the therapeutic response and survival rates of the 246 patients has been carried out. The male to female ratio was 1 : 3.6. The peak incidence was in the 4th and 6th decades. The histologic findings in the 246 patients were papillary adenocarcinoma in 200 cases, follicular adenocarcinoma in 29 cases, mixed type in 14 cases, and others in 3 cases. Combined treatment modalities of 246 patients consisted of sugery and radioiodine in 222 cases, surgery with radioiodine and external irradiation in 11 cases, and surgery with radioiodine, external irradiation and chemotherapy in 5 cases. 42 of the 246 cases showed recurrence and the commonest type of combined treatment for recurrent case was surgery followed by radioiodine-131. The highest accumulated total dosage of radioiodine-131 was 480mCi in that case femoral metastasis was noticed. The most common locoregional metastatic site was ipsilateral cervical node, and neighbouring muscle, vessel, trachea, recurrent layngeal nerve, in order of frequency. The determinate 10-year survival rate was 91.8% in the group receiving surgery followed by radioiodine-13l and 71.4% in patients receiving surgery, radioiodine-13l with XRT. The determinate 10-year survival rate was better for patients under 40 years of age who received radioiodine as compared to patients over 40 year of age(85.7% vs. 33.3%). The most usual primary therapeutic dosage in the group of cervical lesion was 90$\sim$120mCi after surgery.

  • PDF

적갑상선 전절제술 환자의 방사성 동위원소치료 전.후 음성의 변화에 대한 연구 (Voice Analysis before and after Radioactive Iodine Ablation in Patients with Total Thyroidectomy)

  • 홍기환;서은지;이현두;윤연섭;임석태
    • 대한후두음성언어의학회지
    • /
    • 제24권1호
    • /
    • pp.33-40
    • /
    • 2013
  • Background and Objectives:This study is to objectively compare and analyze the acoustic changes in the patients with total thyroidectomy before and after RI therapy. Subjects and Methods:For this study, a total of 50 patients with total thyroidectomy were participated as subjects. Voice samples were obtained at the time of post-operation (Post-OP), before high-dose radioactive iodine therapy (Pre-RIT), and after high-dose radioactive iodine therapy (Post-RIT). Acoustic analysis, the maximum phonation time and K-VHI (Korea-Voice handicap index) were used for subjective evaluation. Results:According to the comparison analysis of the three periods, mFo (Hz) was significantly reduced in all of the vowels /a/ and /i/ as the hormone was discontinued. This can be related to the reduction in vocal range. As thyroid hormone was discontinued, Shim (%) and APQ (%) values, which are the parameters related to the degree of aggressiveness, showed a significant increase in the middle vowel /a/. As thyroid hormone was discontinued, emotional index was significantly decreased in VHI (voice handicap index). Conclusion:These results can be assumed that thyroid hormone suspension is related to the increased changes in the vocal intensity, the increase in noise and the reduction in vocal range. Emotionally, these data can be assumed that the responsive factors of one's own voice disorders were significantly decreased in the patients with vocal handicap.

  • PDF

방사선 동위원소 I-131을 이용한 요드의 IN VIVO 대사 연구 (The Study of Iodine Metabolism IN VIVO Utilizing I-131)

  • 변시명
    • Applied Biological Chemistry
    • /
    • 제19권2호
    • /
    • pp.70-74
    • /
    • 1976
  • Thyroid hormone의 생합성반응기작을 알아보기 위하여 방사선 I-131을 쥐에 주사한 후 thyroid gland을 분리하여 분석하였다. Pancreatin viokase를 처리하여 분리한 요드화합물을 여지 크로마토그라피로 분리 동정하고 이를 radioautography로 분석한 결과 I-131은 주사후 바로 쥐의 체내에서 흡수되어 monoiodotyrosine이 되고 이것은 diiodotyrosine으로 전환됨을 관찰하였다. 실험결과는 diiodotyrosine은 thyroxine 생합성에 있어서 중간생성물이나 반면 triiodothyronine은 오히려 분해산물임을 보여 주었다. 또한 환원제인 propylthiouracil을 투여한 쥐에서 iodine의 체내집적현상(Iodine Pump)은 현저히 증가하였으나 유기 요도화합물을 전환되는 것을 저하였다.

  • PDF

Controversies about Radioactive Iodine-131 Remnant Ablation in Low Risk Thyroid Cancers: Are We Near A Consensus?

  • Zaman, Maseeh Uz;Fatima, Nosheen;Padhy, Ajit Kumar;Zaman, Unaiza
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제14권11호
    • /
    • pp.6209-6213
    • /
    • 2013
  • Well differentiated thyroid cancers (WDTC), including papillary (80%) and follicular (10%) types, are the most common endocrine cancers globally. Over the last few decades most the diagnosed cases have fallen into low risk categories. Radioactive iodine-131 (RAI) has an established role in reducing recurrence and improving the survival in high risk patients. In patients with primary tumor size <1 cm, RAI is not recommended by many thyroid societies. However, low risk WDTC has been an arena of major controversies, most importantly the role and dose of adjuvant RAI for remnant ablation to minimize chances of recurrence and improving survival. This review is an attempt to update readers about the previous and existing practice based on results of non-randomized trials and evolving trends fueled by recently published randomized studies.

분화된 갑상선암의 치료 (Treatment of Differentiated Thyroid Cancer)

  • 송영기
    • 대한핵의학회:학술대회논문집
    • /
    • 대한핵의학회 2002년도 제23차 연수교육
    • /
    • pp.77-95
    • /
    • 2002
  • During the last several decades, prognosis of differentiated thvroid cancers improved markedly, mainly due to refinement of surgical techniques and routine use of radioactive iodine. Total or neat-total thyroidectomy is to be performed as the first line of treatment. Routine remnant ablation just after surgery decreases recurrence and increases survival. After then patients are maintained on suppressive dose of thyroid hormone to keep endogenous TSH below normal. Regular follow-up of the patients with serum thyroglobulin measurement and iodine whole body scan after thyroid hormone withdrawal or under recombinant human thyrotropin stimulation select high risk patients with recurrence or metastatic disease and treatment with therapeutic dose of radioactive iodine prolongs survival and sometimes leads cure. Currently recommended diagnostic and therapeutic strategies, present controversies and future directions are discussed.

  • PDF

방사성요오드 치료를 받는 갑상선암 환자의 삶의 질 변화와 영향요인 (Changes in Quality of Life and Related Factors in Thyroid Cancer Patients with Radioactive Iodine Remnant Ablation)

  • 유선희;최스미
    • 대한간호학회지
    • /
    • 제43권6호
    • /
    • pp.801-811
    • /
    • 2013
  • Purpose: To investigate changes in Quality of life (QOL) and related factors in patients with thyroid cancer undergoing Radioactive Iodine remnant ablation (RAI). Methods: Data were collected longitudinally 3 times for 6 months (2 weeks post-surgery, post RAI, 3 months post RAI) in a hospital located in Seoul. Questionnaires were used to measure levels of physical symptoms, anxiety, depression, and QOL. Ninety-eight patients with thyroid cancer who had RAI were included in the analysis. Data were analyzed using SPSS (18.0). Results: Findings for the three data collection times respectfully were: mean scores for physical symptoms, 0.53, 1.21 and 0.62, patients with depression, 47%, 36.7% and 37.7%, patients with anxiety, 18.4 %, 19.4% and 20.4%, mean scores for QOL, 7.06, 7.01 and 7.28. QOL score was highest 3 months post RAI (p=.031). In the stepwise multiple regression analysis, depression and fatigue were predicting factors for low QOL at all data collection times. Dysponia was a predicting factor for low QOL post RAI and 3 months post RAI. Conclusion: To increase QOL, it is necessary to provide information in advance regarding physical & psychological symptoms and to develop nursing intervention programs to decrease depression and fatigue.

KSNP의 보조건물 설계특성을 반영한 옥소방사능 예상배출량 평가방법의 개선 (Improvement of Evaluation Method for Anticipated Radio-Iodine Release Considering Design Characteristics of KSNP's Auxiliary Building)

  • 이관희;정재학;박원재
    • 한국방사성폐기물학회:학술대회논문집
    • /
    • 한국방사성폐기물학회 2003년도 가을 학술논문집
    • /
    • pp.463-469
    • /
    • 2003
  • 2개의 보조건물(PAB와 SAB)이 있는 KSNP의 경우, 단일 보조건물만을 고려하고 있는 PWR-GALE 코드를 이용하여 기체배출량을 평가하기에는 한계가 있다. 본 논문에서는 기존 PWR-GALE 코드는 그대로 이용하면서 KSNP의 설계특성을 반영하기 위하여 일부 입력변수를 수정해서 보조건물 옥소방사능 배출량을 사실적으로 평가할 수 있는 방법론을 개발했다. 울진 5,6 호기의 설계자료를 이용하여 기존 평가방법론과 개선된 평가방법론을 적용해 사례연구를 실시하였다. 기존 평가방법으로 보조건물 옥소의 유효제거효율을 산출한 결과 42%가 나왔으나 PAB와 SAB의 옥소핵종 농도가 동일하다고 가정을 만족하지 못하는 단점이 있다. 개선된 평가방법으로 옥소의 유효제거효율을 산출한 결과 88%가 나왔다.

  • PDF