Computer-assisted reconstruction of axonal arborizations anterogradely labelled with the Phaseolus vulgaris leucoagglutinin technique

This paper describes a computer-assisted method which allows the tracing of axonal arborizations, and the reconstruction in a either grey-scale or a binary image representation, of all labelled neuronal processes located within different focal planes of a single tissue section. The system includes a Nikon microscope connected to a CCD video camera, and a Macintosh microcomputer. Each step of the method is described in order to show that the capturing of images, retouching and pasting are easily and rapidly performed using commercially available hardware and software.

[1]  J. Yelnik,et al.  A computer-aided method for the quantitative analysis of dendritic arborizations reconstructed from serial sections , 1981, Journal of Neuroscience Methods.

[2]  G. M. Ratto,et al.  Computer aided tracing and encoding of axonal arborizations , 1991, Journal of Neuroscience Methods.

[3]  F. Valverde Reticular formation of the albino rat's brain stem cytoarchitecture and corticofugal connections , 1962, The Journal of comparative neurology.

[4]  Robert N. Holdefer,et al.  Quantitative immunocytochemistry using an image analyzer. I. Hardware evaluation, image processing, and data analysis , 1988, Journal of Neuroscience Methods.

[5]  Arturo Alvarez-Buylla,et al.  Simple microcomputer system for mapping tissue sections with the light microscope , 1988, Journal of Neuroscience Methods.

[6]  W. G. Tourtellote,et al.  A graphics-oriented personal computer-based microscope charting system for neuroanatomical and neurochemical studies , 1989, Journal of Neuroscience Methods.

[7]  Warren G. Tourtellotte,et al.  Computer-aided two-dimensional high-resolution axon tracing: an application using the anterograde tracer Phaseolus vulgaris leucoagglutinin (PHAL) , 1992, Journal of Neuroscience Methods.

[8]  G. Paxinos,et al.  The Rat Brain in Stereotaxic Coordinates , 1983 .

[9]  L. Villanueva,et al.  Efferent projections from the subnucleus reticularis dorsalis (SRD): A Phaseolus vulgaris leucoagglutinin study in the rat , 1990, Neuroscience Letters.

[10]  Edmund M. Glaser,et al.  The image-combining computer microscope — an interactive instrument for morphometry of the nervous system , 1983, Journal of Neuroscience Methods.

[11]  J J Capowski,et al.  Accurate computer reconstruction and graphics display of complex neurons utilizing state-of-the-art interactive techniques. , 1981, Computers and biomedical research, an international journal.

[12]  Newman Db,et al.  Distinguishing rat brainstem reticulospinal nuclei by their neuronal morphology. I. Medullary nuclei. , 1985 .