Literature DB >> 6698059

Hemisphere cross talk and signal overlapping in bilateral regional cerebral blood flow measurements using xenon 133.

M Bolmsjö.   

Abstract

In bilateral regional cerebral blood flow measurements with xenon 133, Compton scatter and hemispheric cross talk obscure the regional resolution and increase the uncertainty of the results. In order to evaluate the effects of these extraregional signal sources on the calculation of regional gray matter blood flow, a computerized simulation procedure was developed. Using the depth-response of a rCBF detector in combination with a computer model of the human brain, it was possible to calculate the signal contributions from different regions in the brain. The results obtained show that large errors may be introduced in the calculation of regional gray matter blood flow when flow asymmetries exist.

Entities:  

Mesh：

Substances：

Year:  1984        PMID： 6698059     DOI： 10.1007/bf00254341

Source DB:  PubMed          Journal:  Eur J Nucl Med        ISSN： 0340-6997


  9 in total

1.  Regional cerebral blood flow estimated by 133-xenon inhalation.

Authors:  W D Obrist; H K Thompson; H S Wang; W E Wilkinson
Journal:  Stroke       Date:  1975 May-Jun       Impact factor: 7.914

2.  Compensating for hemisphere cross-talk when measuring CBF.

Authors:  D J Wyper; M B Cooke
Journal:  Acta Neurol Scand Suppl       Date:  1977

Review 3.  Radioisotopic assessment of regional cerebral blood flow.

Authors:  N A Lassen; D H Ingvar
Journal:  Prog Nucl Med       Date:  1972

4.  The measurement of regional cerebral clearance rates in man using xenon-133 inhalation and extracranial recording.

Authors:  B L Mallett; N Veall
Journal:  Clin Sci       Date:  1965-08       Impact factor: 6.124

5.  Normal values of regional cerebral blood flow in man, including flow and weight estimates of gray and white matter. A preliminary summary.

Authors:  D H Ingvar; S Cronqvist; R Ekberg; J Risberg; K Hoedt-Rasmussen
Journal:  Acta Neurol Scand Suppl       Date:  1965

6.  Attenuation coefficients of various body tissues, fluids, and lesions at photon energies of 18 to 136 keV.

Authors:  M E Phelps; E J Hoffman; M M Ter-Pogossian
Journal:  Radiology       Date:  1975-12       Impact factor: 11.105

7.  Regional cerebral blood flow measurements by 133Xe-inhalation: methodology and applications in neuropsychology and psychiatry.

Authors:  J Risberg
Journal:  Brain Lang       Date:  1980-01       Impact factor: 2.381

8.  Application of lateral counting corrections when measuring cerebral blood flow.

Authors:  D J Wyper; M B Cooke
Journal:  Phys Med Biol       Date:  1978-11       Impact factor: 3.609

9.  Hemispheric specialization in normal man studied by bilateral measurements of the regional cerebral blood flow. A study with the 133-Xe inhalation technique.

Authors:  J Risberg; J H Halsey; E L Wills; E M Wilson
Journal:  Brain       Date:  1975-09       Impact factor: 13.501
  9 in total
  4 in total

Review 1.  Cerebral blood flow changes in migraine: methods, observations and hypotheses.

Authors:  L Friberg
Journal:  J Neurol       Date:  1991       Impact factor: 4.849

2.  Regional cerebral blood flow asymmetries in a group of 189 normal subjects at rest.

Authors:  G Rodriguez; R Coppola; F De Carli; S Francione; S Marenco; F Nobili; J Risberg; G Rosadini; S Warkentin
Journal:  Brain Topogr       Date:  1991       Impact factor: 3.020

3.  Signal analysis of noninvasive Xenon-133 cerebral blood flow measurements.

Authors:  J L Jaggi; W D Obrist; A Noordergraaf
Journal:  Ann Biomed Eng       Date:  1993 Mar-Apr       Impact factor: 3.934

4.  CBF side-to-side asymmetries in stenosis-occlusion of internal carotid artery. Relevance of CT findings and collateral supply.

Authors:  R Cavestri; L Radice; F Ferrarini; C Sgorbati; V D'Angelo; G Rodriguez; F Nobili; E Longhini
Journal:  Ital J Neurol Sci       Date:  1991-08
  4 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.