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Angiology
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A SPECT Study in Internal Carotid Artery Occlusion: Discrepancies Between Flow Image and Neurologic Deficits

Hiroshi Moriwaki

Internal Medicine Department, Kobe Ekisaikai Hospital, Kobe, Japan

Hidetaka Hougaku

Internal Medicine Department, Kobe Ekisaikai Hospital, Kobe, Japan

Isato Matsuda

Internal Medicine Department, Kobe Ekisaikai Hospital, Kobe, Japan

Masahito Kusunoki

Internal Medicine Department, Kobe Ekisaikai Hospital, Kobe, Japan

Jun Shirai

Internal Medicine Department, Kobe Ekisaikai Hospital, Kobe, Japan

A SPECT (single photon emission computed tomography) study in internal carotid artery (ICA) occlusion was performed in 6 patients. The validity of iodoamphetamine (IMP) SPECT study in the evaluation of cerebral blood flow (CBF) or neurologic function is still controversial. In this study, the authors showed several cases in whom SPECT images of brain were not compatible with their neurologic deficits.

In 2 typical cases, a large low-density area was observed in the non-dominant hemisphere in computed tomography (CT) scan, but no apparent motor-sensory deficits in left limbs were present. In these patients, SPECT study also revealed flow reduction in the affected side of the brain. So there was a possibility that an IMP brain image could not always reflect CBF, which maintains neurologic function of the brain.

Angiology, Vol. 40, No. 8, 721-723 (1989)
DOI: 10.1177/000331978904000806
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