Document Detail

Fragmented platinum microcoils as embolization material. Preliminary evaluation in vivo.
MedLine Citation:
PMID:  8915279     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To evaluate the feasibility of using fragmented microcoils as embolization material. MATERIAL AND METHODS: Fragmented microcoil particles were produced from a coil of 0.42-mm platinum guide wire. The diameter of the particles was 420 mu and the length was 450-800 mu. To prevent the catheters from being obstructed by the particles, a core shaft wire was passed through the channels of the particles and a hollow plunger was used to release particles from the catheter. Forty particles were introduced into 4 kidneys in 4 adult dogs following transfemoral catheterization and systemic heparinization. Renal arteriography was performed immediately, and at 60 min, and at 3 weeks after embolization. RESULTS: All particles were successfully introduced into the periphery of the kidneys, and caused occlusion within 3 weeks of embolization. CONCLUSION: Fragmented platinum microcoil particles can be used as embolization material to avoid catheter obstruction.
T Irie; S Kusano
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta radiologica (Stockholm, Sweden : 1987)     Volume:  37     ISSN:  0284-1851     ISO Abbreviation:  Acta Radiol     Publication Date:  1996 Sep 
Date Detail:
Created Date:  1996-12-12     Completed Date:  1996-12-12     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  8706123     Medline TA:  Acta Radiol     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  696-9     Citation Subset:  IM    
Department of Radiology, National Defense Medical College, Saitama, Japan.
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MeSH Terms
Catheterization / instrumentation
Embolization, Therapeutic / instrumentation*
Feasibility Studies
Particle Size
Renal Artery / radiography
Reg. No./Substance:

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