Intra-arterial CT-angiography for cerebral arteriovenous malformation - Initial experiences for treatment planning of radiosurgery

Etsuo Kunieda, Osamu Kawaguchi, Satoshi Onozuka, Suketaka Momoshima, Atsuya Takeda, Naoyuki Shigematsu, Subaru Hashimoto, Takayuki Oohira, Atsushi Kubo

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Purpose: To clarify the feasibility and effectiveness of intra-arterial CT angiography (IACTA) for treatment planning of arteriovenous malformation radiosurgery. Methods and Materials: A CT scanner installed in an angiographic examination room was used. Helical IACTA was performed in 22 patients during continuous intra-arterial infusion of contrast medium via the internal carotid or vertebral artery, and dynamic IACTA was performed in 20 of these patients with reconstruction at 0.2-s intervals. The dynamic IACTA was repeated for each 3- or 5-mm increment to encompass the nidus. Subtractions were performed in postembolization cases. A retrospective review of IACTA was performed to assess the effectiveness of dynamic scans. Results: No complications related to the angiographic procedure or CT imaging were detected. High contrast enhancement was obtained for both helical and dynamic IACTA. In 18 of the 20 cases (90%), draining veins were separated from the nidus by using the enhancement patterns, and in 13 cases (65%), feeding arteries were separated. Conclusion: Dynamic IACTA added important information for target-volume determinations. Conventional CT and MRI could be omitted from the protocol, and the period that patients wore the frame was substantially shortened. We conclude that IACTA is a practical and useful method for radiosurgical treatment planning of arteriovenous malformations.

Original languageEnglish
Pages (from-to)1121-1133
Number of pages13
JournalInternational Journal of Radiation Oncology Biology Physics
Volume54
Issue number4
DOIs
Publication statusPublished - 2002 Nov 15

Fingerprint

Intracranial Arteriovenous Malformations
Radiosurgery
angiography
planning
Arteriovenous Malformations
Therapeutics
arteries
Intra Arterial Infusions
Vertebral Artery
Computed Tomography Angiography
augmentation
Internal Carotid Artery
drainage
veins
subtraction
Contrast Media
scanners
rooms
Veins
Arteries

Keywords

  • Arteriovenous malformation
  • CT angiography
  • Dynamic CT
  • Intra-arterial infusion
  • Radiosurgery

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Radiation

Cite this

Intra-arterial CT-angiography for cerebral arteriovenous malformation - Initial experiences for treatment planning of radiosurgery. / Kunieda, Etsuo; Kawaguchi, Osamu; Onozuka, Satoshi; Momoshima, Suketaka; Takeda, Atsuya; Shigematsu, Naoyuki; Hashimoto, Subaru; Oohira, Takayuki; Kubo, Atsushi.

In: International Journal of Radiation Oncology Biology Physics, Vol. 54, No. 4, 15.11.2002, p. 1121-1133.

Research output: Contribution to journalArticle

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