• 제목/요약/키워드: Re-188

검색결과 110건 처리시간 0.029초

혈관성형술 후 재협착 방지 치료에 사용하기 위한 원통형 풍선 Re-188-DTPA의 선량 분포와 내부피폭 선량 (Dosimetry and Medical Internal Radiation Dose of Re-188-DTPA for Endovascular Balloon Brachytherapy Against Restenosis after Coronary Angioplasty)

  • 이진;이동수;신승애;정재민;정준기;이명철
    • 대한핵의학회지
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    • 제33권2호
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    • pp.163-171
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    • 1999

  • 목적 : 혈관 재협착을 막기 위하여 풍선에 용액 형태의 베타 방출 핵종을 넣어 사용하는 방법이 연구되고 있다. 이 연구에서는 Re-188-DTPA를 풍선에 넣어 사용하는 경우 주위 혈관에 대한 에너지 분포와 용액이 풍선에서 누출되는 경우 주요 장기와 전신에의 흡수 선량을 계산하였다. 대상 및 방법: 전자와 광자의 물에서의 운반은 몬테카를로 EGS4 코드를 사용하였으며 풍선은 직경 3 mm, 길이 20 mm의 원기둥으로 대체하였다. 개에게 Re-188-DTPA 370MBq를 주사하여 감마카메라로 영상을 얻어 주요장기의 잔류 시간을 구하였고 전신과 주요 장기에의 흡수 선량은 MIRDOSE3와 ICRP Dynamic Bladder모델을 사용하여 계산하였다. 결과: 3,700 MBq/1ml을 100초 동안 조사하였을 때 풍선 표면에 전달된 에너지는 17.6 Gy, 표면으로부터 0.5 mm 떨어진 곳에서 9.5 Gy이었다. 풍선에서 용액이 누출되었을 경우 전신에 0.005 mGy/MBq, 방광에 2.39 mGy/MBq의 흡수 선량이 전달되었다. 결론: 관상동맥 풍선 성형술용 풍선에 Re-188-DTPA를 주입하여 사용하는 방법이 목표선량을 조사하는 데 적절하고 방사선 안전의 관점에서 사용 가능한 방법이라고 생각한다.

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Initial experience with intra-articular 188Re-tin colloid as a "radiation synovectomy" agent in various joints

  • Shinto, Ajit S;Indira, VU;Kamaleshwaran, KK;Banka, Vinay Kumar;Aswathy, KK;Thirumalaisamy, SG;Rajamani, V;Mallia, Madhav;Banerjee, Sharmila
    • 대한방사성의약품학회지
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    • 제1권2호
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    • pp.109-117
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    • 2015

  • Radiation synovectomy has been proposed as a promising palliative therapy for recurrent joint effusions for the last two or three decades. Ionizing radiations emitted by intrarticularly administered radiolabelled colloids. The aim of this study was to assess the effectiveness of radiation synovectomy (RSV) using $^{188}Re$-tin colloid in the treatment of recurrent joint effusions and chronic synovitis of knee joints. Three phase bone scan was acquired for the concerned joint prior to radiosynovectomy. $^{188}Re$-tin colloid was prepared as per the reported protocol. 9 patients, diagnosed with rheumatoid arthritis and suffering from chronic resistant synovitis of the knee, ankle or elbow joints were administered the radiopharmaceuticals, checked for radiochemical purity >95% by intraarticular route. A whole body scan was acquired 2 h post-radiosynovectomy. In all the 9 treatments, no leakage to non-target organs was visible in the whole body scan. Static scans of the joint revealed complete retention of $^{188}Re$-tin colloid in the joints post administration of the agent. Clinically all patients exhibited a complete or partial response. RSV with $^{188}Re$-tin colloid was safe and effective in patients with chronic synovitis of rheumatoid origin.

  • https://doi.org/10.22643/JRMP.2015.1.2.109 인용 PDF

DA-7911, rhenium-188 ($Re^{188}$) tin colloid. as a strong candidate agent for radiation synovectomy

  • Shin, Chang-Yell;Jung, Mi-Young;Lee, In-Ki;Son, Mi-Won;Kim, Soon-Hoe;Kim, Won-Bae
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.252-252
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    • 2002

  • Radiation synovectomy is an useful alternative treatment to rheumatoid arthritis and Re$\^$188/ is suggested as an ideal radiopharmaceutical agents because beta ray (2.1 MeV) emitted from Re$\^$188/ is appropriate for synovial cell ablation and gamma ray (155 KeV) is ideal for dosimetry. Its' ideal particle size (2-5 mm) was achieved by conjugation with tin-colloid, In this study, we investigated the toxicity, stability and biodistribution to evaluate the suitability of DA-7911 as a synovectomy agent. (omitted)

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