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Addition computed tomography with stable xenon; Special reference to ischemic cerebrovascular diseases

Journal Article:

Abstract

Stable xenon (Xe{sup s}) is used as a contrast agent because it freely diffuses to cerebral tissues through the blood-brain barrier. In this study, 2 axial levels for Xe{sup s} enhancement analysis were selected from a baseline series of computed tomographic (CT) scans and 6 serial CT scans were obtained every 20 seconds for each scan level during the 240 seconds inhalation period of 30% Xe{sup s} in 10 volunteer controls and in 52 patients with ischemic cerebrovascular diseases (ICVD). The serial CT scans were added and averaged in each pixel. This was used to make a new CT picture (addition CT scans). The CT scans before the Xe{sup s} inhalation, the scan at the end of the Xe{sup s} inhalation, and the addition CT scan were compared to see whether gray matter and ischemic areas could be differentiated from white matter. The addition CT scans could differentiate the three structures very well in both the acute and chronic stages of ICVD. This technique is thought to be a very simple and useful method to detect the small infarcted areas and low perfusion areas that cannot be visualized on precontrast CT scans. (author).
Authors:
Touho, Hajime; Karasawa, Jun; Shishido, Hisashi; Yamada, Keisuke; Shibamoto, Keiji [1] 
  1. Osaka Neurological Inst., Toyonaka (Japan)
Publication Date:
Sep 01, 1990
Product Type:
Journal Article
Reference Number:
JPN-91-002311; EDB-91-041553
Resource Relation:
Journal Name: Neurologia Medico-Chirurgica; (Japan); Journal Volume: 30:9
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; CEREBRUM; CAT SCANNING; XENON; BLOOD FLOW; CONTRAST MEDIA; INHALATION; ISCHEMIA; SEQUENTIAL SCANNING; VASCULAR DISEASES; BODY; BRAIN; CARDIOVASCULAR DISEASES; CENTRAL NERVOUS SYSTEM; COMPUTERIZED TOMOGRAPHY; COUNTING TECHNIQUES; DIAGNOSTIC TECHNIQUES; DISEASES; ELEMENTS; FLUIDS; GASES; INTAKE; NERVOUS SYSTEM; NONMETALS; ORGANS; RARE GASES; TOMOGRAPHY; 550602* - Medicine- External Radiation in Diagnostics- (1980-)
OSTI ID:
6247329
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0387-2572; CODEN: NMCHB
Submitting Site:
JPN
Size:
Pages: 656-662
Announcement Date:
Apr 01, 1991

Journal Article:

Citation Formats

Touho, Hajime, Karasawa, Jun, Shishido, Hisashi, Yamada, Keisuke, and Shibamoto, Keiji. Addition computed tomography with stable xenon; Special reference to ischemic cerebrovascular diseases. Japan: N. p., 1990. Web.
Touho, Hajime, Karasawa, Jun, Shishido, Hisashi, Yamada, Keisuke, & Shibamoto, Keiji. Addition computed tomography with stable xenon; Special reference to ischemic cerebrovascular diseases. Japan.
Touho, Hajime, Karasawa, Jun, Shishido, Hisashi, Yamada, Keisuke, and Shibamoto, Keiji. 1990. "Addition computed tomography with stable xenon; Special reference to ischemic cerebrovascular diseases." Japan.
@misc{etde_6247329,
title = {Addition computed tomography with stable xenon; Special reference to ischemic cerebrovascular diseases}
author = {Touho, Hajime, Karasawa, Jun, Shishido, Hisashi, Yamada, Keisuke, and Shibamoto, Keiji}
abstractNote = {Stable xenon (Xe{sup s}) is used as a contrast agent because it freely diffuses to cerebral tissues through the blood-brain barrier. In this study, 2 axial levels for Xe{sup s} enhancement analysis were selected from a baseline series of computed tomographic (CT) scans and 6 serial CT scans were obtained every 20 seconds for each scan level during the 240 seconds inhalation period of 30% Xe{sup s} in 10 volunteer controls and in 52 patients with ischemic cerebrovascular diseases (ICVD). The serial CT scans were added and averaged in each pixel. This was used to make a new CT picture (addition CT scans). The CT scans before the Xe{sup s} inhalation, the scan at the end of the Xe{sup s} inhalation, and the addition CT scan were compared to see whether gray matter and ischemic areas could be differentiated from white matter. The addition CT scans could differentiate the three structures very well in both the acute and chronic stages of ICVD. This technique is thought to be a very simple and useful method to detect the small infarcted areas and low perfusion areas that cannot be visualized on precontrast CT scans. (author).}
journal = {Neurologia Medico-Chirurgica; (Japan)}
volume = {30:9}
journal type = {AC}
place = {Japan}
year = {1990}
month = {Sep}
}