Evaluation of regional cerebral blood flow changes on perifocal brain tissue spect before and after removal of arteriovenous malformations

G. Takeshita, Hiroshi Toyama, K. Nakane, M. Nomura, H. Osawa, Y. Ogura, K. Katada, A. Takeuchi, S. Koga, Y. Kato, H. Sano, T. Kanno

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Abstract

In fifteen cases of arteriovenous malformation (AVM), serial examinations of regional cercbral blood flow (rCBF) using single photon emission computed tomography (SPECT) and N-isopropyl-(123I)p- iodoamphetamine were performed. On SPECT images, the nidus was visualized as a focal rCBF defect in all cases preoperatively and seven of these cases had abnormal decreased perfusion areas in the tissues adjacent to the nidus. In five cases, the postoperative SPECT images on the day after surgery revealed an abnormal increased perfusion area adjacent to the nidus and in one case the increased perfusion was accompanied by a massive intracerebral haemorrhage detected by brain computed tomography (CT). In seven cases, postoperative SPECT images showed widespread abnormal decreased perfusion areas in the surrounding tissues and brain CT revealed either intracerebral haemorrhage or significant cerebral oedema. In the other three cases, no remarkable rCBF changes were found in comparison with the pre-operative study. There was a tendency for the preoperative abnormal decreased perfusion area adjacent to the nidus to correlate with the postoperative hyperperfusion and for the postoperative abnormal decreased perfusion area to reflect brain damage.

Original languageEnglish
Pages (from-to)461-468
Number of pages8
JournalNuclear Medicine Communications
Volume15
Issue number6
Publication statusPublished - 01-01-1994

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Cerebrovascular Circulation
Arteriovenous Malformations
Regional Blood Flow
Perfusion
Single-Photon Emission-Computed Tomography
Brain
Cerebral Hemorrhage
Iofetamine
Tomography
Brain Edema
Ambulatory Surgical Procedures

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

Cite this

Takeshita, G. ; Toyama, Hiroshi ; Nakane, K. ; Nomura, M. ; Osawa, H. ; Ogura, Y. ; Katada, K. ; Takeuchi, A. ; Koga, S. ; Kato, Y. ; Sano, H. ; Kanno, T. / Evaluation of regional cerebral blood flow changes on perifocal brain tissue spect before and after removal of arteriovenous malformations. In: Nuclear Medicine Communications. 1994 ; Vol. 15, No. 6. pp. 461-468.
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Takeshita, G, Toyama, H, Nakane, K, Nomura, M, Osawa, H, Ogura, Y, Katada, K, Takeuchi, A, Koga, S, Kato, Y, Sano, H & Kanno, T 1994, 'Evaluation of regional cerebral blood flow changes on perifocal brain tissue spect before and after removal of arteriovenous malformations', Nuclear Medicine Communications, vol. 15, no. 6, pp. 461-468.

Evaluation of regional cerebral blood flow changes on perifocal brain tissue spect before and after removal of arteriovenous malformations. / Takeshita, G.; Toyama, Hiroshi; Nakane, K.; Nomura, M.; Osawa, H.; Ogura, Y.; Katada, K.; Takeuchi, A.; Koga, S.; Kato, Y.; Sano, H.; Kanno, T.

In: Nuclear Medicine Communications, Vol. 15, No. 6, 01.01.1994, p. 461-468.

Research output: Contribution to journalArticle

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AU - Takeshita, G.

AU - Toyama, Hiroshi

AU - Nakane, K.

AU - Nomura, M.

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AU - Ogura, Y.

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AU - Kanno, T.

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AB - In fifteen cases of arteriovenous malformation (AVM), serial examinations of regional cercbral blood flow (rCBF) using single photon emission computed tomography (SPECT) and N-isopropyl-(123I)p- iodoamphetamine were performed. On SPECT images, the nidus was visualized as a focal rCBF defect in all cases preoperatively and seven of these cases had abnormal decreased perfusion areas in the tissues adjacent to the nidus. In five cases, the postoperative SPECT images on the day after surgery revealed an abnormal increased perfusion area adjacent to the nidus and in one case the increased perfusion was accompanied by a massive intracerebral haemorrhage detected by brain computed tomography (CT). In seven cases, postoperative SPECT images showed widespread abnormal decreased perfusion areas in the surrounding tissues and brain CT revealed either intracerebral haemorrhage or significant cerebral oedema. In the other three cases, no remarkable rCBF changes were found in comparison with the pre-operative study. There was a tendency for the preoperative abnormal decreased perfusion area adjacent to the nidus to correlate with the postoperative hyperperfusion and for the postoperative abnormal decreased perfusion area to reflect brain damage.

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