• Title/Summary/Keyword: Rete mirabile

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Tc-99m-HMPAO Regional Cerebral Blood Flow SPECT in Cerebral Rete Mirabile (Cerebral Rete Mirabile의 Tc-99m-HMPAO 국소뇌혈류 SPECT소견)

  • Park, Young-Ha;Chung, Soo-Kyo;Lee, Sung-Yong;Shinn, Kyung-Sub;Kim, Jong-Woo;Bahk, Yong-Whee
    • The Korean Journal of Nuclear Medicine
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    • v.22 no.2
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    • pp.157-161
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    • 1988
  • Cerebral rete mirabile는 잘 알려진 뇌혈관 질환으로 뇌혈관촬영상 내경동맥이 심한 협착 혹은 폐색, 뇌저부의 이상혈관망 형성 및 다수의 연수막동맥간문합과 경경수막 외내경동맥간문합의 특징적 소견을 나타낸다. 최근 방사성의약품의 발전과 함께, Tc-99m-HMPAO를 이용한 뇌SPECT는 뇌혈류역학의 평가, 병소의 조기발견 및 병소의 정확한 위치를 알기위한 상용진단 방법이 되었다. 저자들은 뇌 혈관촬영으로 확진된 10명 의 Cerebral rete mirabile 환자에서 뇌 전산화단층촬영과 Tc-99m-HMPAO를 이용한 국소뇌혈류 SPECT를 검토하였다. 대상환자중 남자는 3명, 여자는 7명이었으며, 연령분포는 6세에서 38세이었다. 1) Tc-99m-HMPAO를 이응한 국소 뇌혈류 SPECT는 뇌의 경색부위 뿐만 아니라 허혈부위까지 나타냈으며, cerebral rete mirabile에서의 뇌의 침습된 부위를 나타내는데 있어서 뇌전산화단층촬영보다 우월하였다. 또한 모든 예에서 뇌전산화반층촬영보다 더 넓은 허혈부위를 보여주었다. 2) 다른 허혈성 뇌혈관질환과 비교하여 cerebral rete mirabile는 비균질성 방사능을 나타냈고, 이는 측부순환로에 의한 것으로 추측된다. 3) Tc-99m-HMPAO를 이용한 국소뇌혈류 SPECT는 뇌의 허혈부위의 범위를 평가, 문합수술의 계획 및 cerebral rete mirabile의 경과를 추적하는데 유용한 검사이다.

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Development of a New Liquid Embolic for Arteriovenous Malformation (동정맥기형 치료를 위한 액상폐색물질 개발)

  • Park, S.;Huh, S.J.;Suh, D.C.;Song, H.Y.
    • Proceedings of the KOSOMBE Conference
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    • v.1997 no.05
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    • pp.439-442
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    • 1997
  • For the treatment of arteriovenous malformations (AVM), we developed a new liquid embolic material and named it Embol. The material was pre-tested in an in vitro AVM model and tested in rete mirabile of pigs that is similar in structure with the AVM in human. We report on the construction of the in vitro AVM model, the pre-test results of Embol in the AVM model, and the animal test result in pig rete mirabile.

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Anatomical Studies on Arterial Supplies of Eyeball of the Korean Native Goat (한국재래산양 안구의 동맥분포에 관한 해부학적 연구)

  • Lee, Heung-shik;Kim, Dae-joong
    • Korean Journal of Veterinary Research
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    • v.26 no.1
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    • pp.11-17
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    • 1986
  • The arterial supply to the eyeball of the Korean native goat has been described. Observations were made by dissection of ten Korean native goats fixed in embalming fluid and injected with neoprene latex. The results were as follows. 1. The eyeball and accessory ocular organ of the Korean native goat received its blood supply chiefly from the A. ophthalmica externa and partly from the branches of A. temporalis superficialis and A. malaris. 2. A. ophthalmica externa formed Rete mirabile ophthalmicum after giving off Ramus muscularis and A. lacrimalis, and continued to A. supraorbitalis. 1) A. lacrimalis was given off between Mm. rectus lateralis and dorsalis, and supplied lacrimal gland. 2) Rete mirabile ophthalmicum gave off A. ciliares posteriores longae and Rami musculares. A. ciliates posteriores longae gave off A. ciliates posteriores medialis and lateralis, Ramus anastomoticus cum A. ophthalmica interna, A. centralis retinae, Aa. ciliares posteriores breves and Aa. episcaeralis. Rami musculares supplied to M. rectus dorsalis, M. obliquus dorsalis, M. retractor bulbi, M. levator palpebrae superioris and M. rectus medialis, and continued Aa. ciliares anteriores after giving off A. episclerales and A. conjunetivales. 3) A. supraorbitalis supplied to M. rectus dorsalis. M. obliquus dorsalis and conjuntiva, and passed into supraorbital foramen. 3. A. malaris gave off A. palpebrae tertiae, A. palpebralis inferior medialis and A. palpebralis superior medialis, which supplied to third eyelid, medial aspect of the eyelids and conjunctiva. 4. A. temporalis superficialis gave off A. palpebralis inferior lateralis and A. palpebralis superior lateralis, which supplied to lateral aspect of the eyelids, M. orbicularis oculi and M. frontoscutularis.

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Scintiangiographic Visualization of Systemic-Portal Venous Shunting as a Cause of "hot Spot" in Superior Vena Cava Obstruction (상대정맥폐쇄증에 의한 전신.문맥계 단락에 따른 국소성 간열소의 출현)

  • Park, Jeong-Mi;Chung, Soo-Kyo;Shinn, Kyung-Sub;Bahk, Yong-Whee
    • The Korean Journal of Nuclear Medicine
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    • v.19 no.1
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    • pp.145-148
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    • 1985
  • A small number of pathologic entities such as Budd-Chiari Syndrome, cirrhosis, focal nodular hyperplasia, and superior and inferior vena cava obstruction has been reported to result in focal areas of increased uptake of radiocolloid on the hepatoscintigram. We recently studied a patient with focal accumulation of $^{99m}Tc-phytate$ at the inferior aspect of the liver, at the junction of the right and left lobe. The superior vena cava scintiangiogram was taken for the evaluation of the superior vena cava obstruction and collateral circulations. As a result of superior vena caval obstruction a considerable amount of blood flowed to the liver through the anterior parietal and periumblical venous channels. A certain fraction of radiocolloid delivered by the rete mirabile perfused to a localized area of the liver. This would explain the hot spot around the porta hepatis in this case.

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