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Browse format for the databases of Carnegie stages 16 – 23 in the Virtual Human Embryo DREM project
Author(s) -
Gasser Raymond Frank
Publication year - 2007
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.21.5.a595-d
Subject(s) - high resolution , construct (python library) , section (typography) , computer science , database , resolution (logic) , information retrieval , computer graphics (images) , artificial intelligence , geography , remote sensing , operating system , programming language
The Virtual Human Embryo DREM project is making available to embryologists the high resolution sectional morphology of human embryos at each of the 23 Carnegie stages. The digital images are becoming available on computer disks for use in teaching, research and publications thereby eliminating the costly and time consuming task of onsite microscopic study of actual specimens. To date the databases for stages 1 thru 13 and 15 have been completed and can be viewed at our website: virtualhumanembryo.lsuhsc.edu . In these databases a large part of the available filespace is occupied by the Browse portion of the disk as this is the part that includes all the high resolution images of the sections. The size of the embryos increases progressively in the older stages resulting in an increasing number of progressively larger sections. A new Browse format is being used for the older embryos because of the limitations of current data storage and retrieval hardware. With current technology it is impractical to include in the databases of the older specimens the high resolution morphology of every area of every section. Since the oldest and therefore largest specimens are in stage 23, a transversely sectioned specimen from this stage was selected to construct the format that would accommodate the data storage constraints. The new format allows the user to view high resolution images of selected areas of selected section images. The areas selected are based on their histogenetic importance. Examples of high resolution images with the new Browse format will be presented. (Supported by NICHD #2RO1HD37811