scholarly journals Computer-assisted identification of the central sulcus in patients with brain tumors using MRI

2008 ◽  
Vol 27 (6) ◽  
pp. 1242-1249 ◽  
Author(s):  
Ikuko Uwano ◽  
Masashi Kameda ◽  
Takashi Inoue ◽  
Hideaki Nishimoto ◽  
Shunrou Fujiwara ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Computer Assisted ◽  
Central Sulcus

scholarly journals Localization of hand motor activation in Broca's pli de passage moyen

1999 ◽  
Vol 7 (4) ◽  
pp. E1 ◽  
Author(s):  
Warren Boling ◽  
André Olivier ◽  
Richard G. Bittar ◽  
David Reutens
Keyword(s):  
Motor Function ◽  
Three Dimensional ◽  
Motor Area ◽  
Middle Frontal Gyrus ◽  
Computer Assisted ◽  
Precentral Gyrus ◽  
Central Sulcus ◽  
Motor Activation ◽  
Imaging Results ◽  
Hand Motor Area

Object The object of this study was to identify a reliable surface landmark for the hand motor area and to demonstrate that it corresponds to a specific structural component of the precentral gyrus. Methods Positron emission tomography (PET) activation studies for hand motor function were reviewed in 12 patients in whom magnetic resonance imaging results were normal. Each patient performed a hand opening and closing task. Using a computer-assisted three-dimensional reconstruction of the surface of each hemisphere studied, the relationship of the hand motor area to cortical surface landmarks was evaluated. Conclusions The region of hand motor activation can be reliably identified on the surface of the brain by assessing anatomical relationships to nearby structures. After identification of the central sulcus, the superior and middle frontal gyrus can be seen to arise from the precentral gyrus at a perpendicular angle. A bend or genu in the precentral gyrus is constantly seen between the superior and middle frontal gyrus, which points posteriorly (posteriorly convex). The location of hand motor function, identified using PET activation studies, is within the central sulcus at the apex of this posteriorly pointing genu. The apex of the genu of the precentral gyrus leads to a deep cortical fold connecting the pre- and postcentral gyri and elevating the floor of the central sulcus. This deep fold was described by Paul Broca as the pli de passage fronto-pariétal moyen, and the precentral bank of the pli de passage represents the anatomical substratum of hand motor function. Observers blinded to the results of the activation studies were able to identify the hand motor area reliably after instruction in using these surface landmarks.

Cerebral motor control in patients with brain tumors around the central sulcus studied with synthetic aperture magnetometry

2007 ◽  
Vol 1300 ◽  
pp. 713-716
Author(s):  
Amami Kato ◽  
Satoru Oshino ◽  
Masayuki Hirata ◽  
Masaaki Taniguchi ◽  
Youichi Saitoh ◽  
...  
Keyword(s):  
Motor Control ◽  
Brain Tumors ◽  
Synthetic Aperture ◽  
Central Sulcus ◽  
Synthetic Aperture Magnetometry

Interstitial Brachytherapy of Malignant Brain Tumors Using Computed Tomography-guided Stereotaxis and Available Imaging Software: Technical Report

Neurosurgery ◽  
1987 ◽  
Vol 20 (1) ◽  
pp. 4-7 ◽  
Author(s):  
Robert J. Coffey ◽  
William A. Friedman
Keyword(s):  
Computed Tomography ◽  
Brain Tumors ◽  
Interstitial Brachytherapy ◽  
Preoperative Imaging ◽  
Computer Assisted ◽  
Radiotherapy Treatment Planning ◽  
Computed Tomographic ◽  
Technical Report ◽  
Stereotactic System ◽  
Stereotactic Implantation

Abstract The implantation of radioactive sources into malignant intraaxial brain tumors, interstitial brachytherapy, is a theoretically attractive treatment for these nearly uniformly fatal lesions. Optimal application of this treatment modality requires careful preoperative planning, computer-assisted dosimetry, and computed tomography-guided stereotactic implantation of the isotope-bearing catheters. A method is presented by which available computed tomographic imaging software can be used with a standard radiotherapy treatment planning computer and the Brown-Roberts-Wells stereotactic system for preoperative imaging, dosimetry planning, and brachytherapy catheter insertion. Dedicated computer facilities are not required, making this method available to any neurosurgeon with access to a current generation computed tomographic scanner.

Localization of hand motor activation in Broca's pli de passage moyen

1999 ◽  
Vol 91 (6) ◽  
pp. 903-910 ◽  
Author(s):  
Warren Boling ◽  
André Olivier ◽  
Richard G. Bittar ◽  
David Reutens
Keyword(s):  
Motor Function ◽  
Motor Area ◽  
Middle Frontal Gyrus ◽  
Computer Assisted ◽  
Precentral Gyrus ◽  
Central Sulcus ◽  
Content Type ◽  
Motor Activation ◽  
Hand Motor Area ◽  
Fine Print

Object. The object of this study was to identify a reliable surface landmark for the hand motor area and to demonstrate that it corresponds to a specific structural component of the precentral gyrus.Methods. Positron emission tomography (PET) activation studies for hand motor function were reviewed in 12 patients in whom magnetic resonance imaging results were normal. Each patient performed a hand opening and closing task. Using a computer-assisted three-dimensional reconstruction of the surface of each hemisphere studied, the relationship of the hand motor area with cortical surface landmarks was evaluated.Conclusions. The region of hand motor activation can be reliably identified on the surface of the brain by assessing anatomical relationships to nearby structures. After identification of the central sulcus, the superior and middle frontal gyrus can be seen to arise from the precentral gyrus at a perpendicular angle. A bend or genu in the precentral gyrus is constantly seen between the superior and middle frontal gyrus, which points posteriorly (posteriorly convex). The location of hand motor function, identified using PET activation studies, is within the central sulcus at the apex of this posteriorly pointing genu. The apex of the genu of the precentral gyrus leads to a deep cortical fold connecting the pre- and postcentral gyri and elevating the floor of the central sulcus. This deep fold was described by Paul Broca as the pli de passage fronto-pariétal moyen, and the precentral bank of the pli de passage represents the anatomical substratum of hand motor function. Observers blinded to the results of the activation studies were able to identify the hand motor area reliably after instruction in using these surface landmarks.

Computer-Assisted CT-Guided Stereotactic Biopsy and Brachytherapy of Brain Tumors

1994 ◽  
Vol 63 (1-4) ◽  
pp. 52-55 ◽  
Author(s):  
R.Q. Quiñones-Molina ◽  
A. Alaminos ◽  
H. Molina ◽  
J. Muñoz ◽  
G. López ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Stereotactic Biopsy ◽  
Computer Assisted ◽  
Ct Guided
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