Clinical observations on the effect of carotid artery occlusion on cerebral blood flow mapped by xenon computed tomography and its correlation with carotid artery back pressure

Journal Article · Mon Jan 01 00:00:00 EST 1990 · Journal of Vascular Surgery; (USA)

DOI:https://doi.org/10.1016/0741-5214(90)90326-6· OSTI ID:6983756

Steed, D L; Webster, M W; DeVries, E J; Jungreis, C A; Horton, J A; Sehkar, L; Yonas, H ^[1]

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1. Univ. of Pittsburgh School of Medicine, PA (USA)

Xenon computed tomographic cerebral blood flow mapping was correlated with internal carotid artery stump pressures and clinical neurologic assessment during temporary internal carotid artery occlusion. One hundred fourteen patients with skull base tumors or intracranial aneurysms potentially requiring carotid resection or ligation underwent angiography, xenon CT cerebral blood flow mapping, and internal carotid artery blood pressure monitoring. The internal carotid artery was then temporarily occluded with a balloon catheter, stump pressure was measured through the catheter, and the xenon CT cerebral blood flow mapping was repeated. Adequate xenon CT cerebral blood flow was defined as greater than 30 cc/100 gm/min. All patients had normal xenon CT cerebral blood flow before internal carotid artery occlusion. During internal carotid artery occlusion, xenon CT cerebral blood flow was found to be normal (group I, 40 patients), globally reduced but still within the normal range (group II, 50 patients), or low in the distribution of the ipsilateral middle cerebral artery (group III, 13 patients). With balloon occlusion, an immediate neurologic deficit developed in 11 patients (9%) requiring deflation of the balloon preceding xenon CT cerebral blood flow measurement (group IV). In group I internal carotid artery blood pressure was 128 mm Hg. (range 85 to 171 mm Hg) with stump pressure 86 mm Hg (range 46 to 125 mm Hg). In group II internal carotid artery blood pressure was 130 mm Hg. (range 78 to 199 mm Hg), with stump pressure 86 mm Hg (range 31 to 150 mm Hg).

• OSTI ID: 6983756
• Journal Information: Journal of Vascular Surgery; (USA), Vol. 11:1; ISSN 0741-5214
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
CEREBRAL CORTEX
BLOOD FLOW
SKULL
NEOPLASMS
VASCULAR DISEASES
DIAGNOSIS
BLOOD PRESSURE
CAROTID ARTERIES
EMISSION COMPUTED TOMOGRAPHY
PATIENTS
XENON ISOTOPES
ARTERIES
BLOOD VESSELS
BODY
BRAIN
CARDIOVASCULAR SYSTEM
CENTRAL NERVOUS SYSTEM
CEREBRUM
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
DISEASES
ISOTOPES
NERVOUS SYSTEM
ORGANS
SKELETON
TOMOGRAPHY
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