Comparison of imaging modalities for the accurate delineation of arteriovenous malformation, with reference to stereotactic radiosurgery

Aoyama, Hidefumi; Katoh, Norio; Kudo, Kohsuke; Asano, Takeshi; Kuroda, Satoshi; Ishikawa, Tatsuya; Miyasaka, Kazuo

Comparison of imaging modalities for the accurate delineation of arteriovenous malformation, with reference to stereotactic radiosurgery

Aoyama, Hidefumi; Katoh, Norio; Kudo, Kohsuke et al.

International Journal of Radiation Oncology Biology Physics, 2005, 62(4), 1232-1238

Permalink : https://hdl.handle.net/2115/8494

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アクセス権	open access
URI	https://hdl.handle.net/2115/8494
タイトル	Comparison of imaging modalities for the accurate delineation of arteriovenous malformation, with reference to stereotactic radiosurgery
その他のタイトル	MRA for radiosurgery of AVM
著者	Aoyama, Hidefumi ; Katoh, Norio ; Kudo, Kohsuke ; Asano, Takeshi ; Kuroda, Satoshi ; Ishikawa, Tatsuya ; Miyasaka, Kazuo
e-Rad_Researcher 80360915 著者名 Aoyama, Hidefumi
e-Rad_Researcher 80572495 著者名 Katoh, Norio
e-Rad_Researcher 10374232 著者名 Kudo, Kohsuke
著者名 Asano, Takeshi
e-Rad_Researcher 10301904 著者名 Kuroda, Satoshi
e-Rad_Researcher 10281809 著者名 Ishikawa, Tatsuya
e-Rad_Researcher 60001939 著者名 Miyasaka, Kazuo
言語	英語
キーワード	Radiosurgery
	AVM
	MRA
	CTA
	Angiography
	IGRT
発行日	2005-07-15
出版者	Elsevier
収録物名	International Journal of Radiation Oncology Biology Physics
巻(号)	62(4)
ページ	1232-1238
抄録	Purpose: To investigate the discrepancy between the arteriovenous malformations (AVMs) seen on magnetic resonance angiography (MRA), and seen on stereotactic digital subtracted angiography (DSA). Materials and Methods: The target volume on stereotactic DSA (VDSA) and the target volume on MRA (VMRA) were separately delineated in 28 intracranial AVMs. The coordinates of the center and the outer edges of VDSA and VMRA were calculated and used for the analyses. Results: The standard deviations (mean value) of the displacement of centers of VMRA from VDSA were 2.67mm (-1.82 mm) in the left-right direction, 3.23 mm (-0.08 mm) in the anterior-posterior direction, and 2.16 mm (0.91 mm) in the cranio-caudal direction. VMRA covered less than 80% of VDSA in any dimensions in 9 cases (32%), although no significant difference was seen in the target volume between each method with a mean value of 11.9 cc for VDSA and 12.3 cc for VMRA (p=0.948). Conclusion: The shift of centers between each modality is not negligible. Considering no significant difference between VDSA and VMRA, but inadequate coverage of the VDSA by VMRA, it is reasonable to consider that the target on MRA might include the feeding artery and draining vein, and possibly miss a portion of the nidus.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	03603016
NCID	AA00680920
関連情報	PMID 15913912
関連情報	URI http://www.sciencedirect.com/science/journal/03603016
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.ijrobp.2005.03.039