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Spatial Interrelationship of Craniocerebral Reference Points and Basal Ganglia: With Special Reference to Forel-H Field Part 2. Spatial Interrelationship between Intracerebral Reference Points and Basal Ganglia: with Special Reference to Forel-H Field Akio Suzuki 1 1Department of Neurological Surgery Okayama University Medical School pp.440-458
Published Date 1964/4/25
DOI https://doi.org/10.11477/mf.1431904096
  • Abstract
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 Spatial interrelationships among the fasciculus thalamicus (H1), fasciculus lenticularis (H2) and ansa lenticularis of the Forel-H field and also neighbouring basal ganglia such as the thalamus, corpus Luysi, nucleus ruber, substantia nigra, globus pallidus, putamen and nucleus caudatus were investigated in relation to the foramen of Monro and the mid-point of Ca-Cp line as standard reference points in 15 brains of Japanese cadavers, and three-dimensional atlas of those basal ganglia was made by graphic method. Furthermore the values of variations of their location were calculated.

 1) Extension of the Forel-H field is 10 mm in sagittal direction, 12mm in lateral and 8 mm in vertical with its center 2 mm posterior and 4 mm inferior to the mid-point of Ca-Cp line and 8 mm lateral from the midline in average. Individual variation of the H-field is less than that of other basal ganglia. The positional location of the field of the author's cases is 3 mm more posterior and 3 mm more inferior in average than that of Schaltenbrand-Bailey's atlas.

 2) Nucleus ventralis lateralis of the thalamus is located in the area of 1 mm anterior, 3.5 mm posterior, 16mm superior and 1 mm inferior to the mid-point of Ca-Cp line and 5. 5-15. 5 mm lateral from the mid line in most of the cases.

 3) The value of positional variations of the basal ganglia may become changed as the reference point is changed. Therefore, by selecting the reference point closer to the target point, anatomical deviation cart be minimized so that the stereotaxic procedure may be more accurate and correct.


Copyright © 1964, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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