Journal of Cerebrovascular and Endovascular Neurosurgery

  • 제13권3호
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  • Pages.235-238
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  • 2011
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  • 2234-8565(pISSN)
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  • 2287-3139(eISSN)
대한뇌혈관외과학회 (Korean Society of Cerebravascular Surgeons)
권호 표지

Comparison of Aneurysmal Clip-induced Artifacts in 64- and 16-row Multislice Computed Tomography Angiograms

  • Choi, Hyunho (Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Lee, Seung Jin (Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Sohn, Chulho (Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Kim, Jeong Eun (Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Kang, Hyun-Seung (Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine)
  • 발행 : 2011.09.30
⟨ 이전 논문 다음 논문 ⟩

초록

Objective : The aim of this study was to compare titanium and cobalt alloy clip induced artifacts in 16- and 64-row multislice computed tomography angiograms. Methods : A total of 40 intracranial aneurysms in 37 patients treated using titanium or cobalt-alloy clips were enrolled in this study. Computed tomography angiography (CTA) was performed using a 16-row (12 aneurysms; cobalt-alloy clips in 8 and titanium clips in 4) or 64-row (28 aneurysms; cobalt-alloy clips in 14 and titanium clips in 14) multislice CT machine after surgical clipping. Clip-induced artifacts were divided into white and black components, and artifact sizes were quantified by measuring the areas of these components. Results : The titanium clips ($634.9{\pm}308.44mm^2$) produced smaller artifacts than cobalt alloy clips ($2,797.4{\pm}3,121.98mm^2$) by CTA (p=0.006), but the mean size of titanium clip induced artifacts was smaller for 64-row ($544.0{\pm}68.77mm^2$) than for 16-row ($953.3{\pm}279.95mm^2$) multislice CTA (p=0.026). On the other hand, cobalt alloy clip related artifacts were similarly sized (64-row, $2,191.5{\pm}2,072.86mm^2$ versus 16-row, $3,857.6{\pm}4,386.56mm^2$, p=0.246). Conclusion : Titanium clips produce smaller artifacts than cobalt-alloy clips and 64-row multislice CTA reduced titanium clip-induced artifacts as compared with 16-row multislice CTA. However, cobalt-alloy clip artifacts were huge and were not reduced by the higher row CTA unit.

키워드

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