Load Analyze Format(LAF) Panel

To call up this module:

This module allows the loading of entire or partial ANALYZE-formatted files into shared memory. It also allows you to preview and generate simple statistical data on the slices of an image before they are loaded. You can simply load all of your data, or you can reduce the data set to preserve space in shared memory.

Selecting a File

To do anything in the LAF panel, you must first select a file. To do this, specify the directory and filename.

Dir: Entry Line

The file will be loaded from the directory listed on the Dir: entry line. The default directory is whatever directory you are currently in.

To change the directory:

  • Either
    Use the Load Analyze Format menu
    Left-click twice on the "../" symbol to go up a directory
    Left-click twice on any directory to go to that directory
  • Or
    Delete the current Dir: entry
    Type the name of the directory you wish to go to

    • File: Entry Line

    The File: entry line specifies the file to be loaded into Shared Memory. To select or change the File to be loaded:
  • Either
    Use the Load Analyze Format menu
    Scroll up and down the menu using the scroll bar to the left of the menu
    Left-click once on the name of the file you want to load
  • Or
    Delete the current File: entry
    Type the name of the file you want to load
    • Once you have selected a file, a message will appear at the bottom left of the panel naming the file you have selected. The file selected in the panel at the beginning of this section is ImaLung. Notice also that once you select a file, the middle slice of that file will be shown in the middle slice canvas

    Load Analyze Format Menu

    The Load Analyze Format menu is located in the left lower corner of the LAF panel. You can use this menu to change directories and to select the file you want to load.
  • To change directories:
    Left-click twice on the "../" symbol to go up a directory
    Left-click twice on any directory to go to that directory
  • To select a file:
    Scroll up and down the menu using the scroll bar to the left of the menu
    Left-click once on the name of the file you want to load

    • Middle Slice Canvas

    The Middle Slice canvas is located on the right hand side of the LAF panel. It displays the middle slice of the file you have currently selected. This is useful for determining whether or not you are about to load the correct file.

    View Menu Button

    Preview Menu Item
    To call up the LAF: Preview panel, right-click on the View button and drag your cursor down to Preview. This panel allows you to look at the slices of the image you are about to load. Preview menu item -- more information

    Header Info Menu Item
    To call up the LAF: Header Info panel, right-click on the View button and drag your cursor down to Header Info. This panel gives basic patient information, information about pixel dimensions of the image, and allows you to view additional patient information. Header Info menu item -- more information

    Histogram/Sample Menu Item
    To call up the LAF:Histogram/Sample panel, right-click on the View button and drag your cursor down to Histogram/Sample. This panel allows you to generate simple statistical data on the slices of an image before they are loaded. It also allows you to load in a smaller portion of an image, i.e. a region containing the heart. Histogram/Sample menu item -- more information

    Properties Button

    The Properties button calls up the LAF:Properties panel. This panel can be used to reduce the data set to preserve space in shared memory. LAF:Properties panel -- more information

    Load Image Button

    The Load Image button, at the top of the LAF panel, loads the selected image into shared memory.

    To load an image file:

    Select the file you want(for instructions)
    Left click on the Load Image button
    When you press the Load Image button, the small canvas to the right of the files list on the module's main panel is temporarily replaced with a vertical bar which fills as each slide is loaded into shared memory.

    Any limitations as to the number and size of the slices, the number of bits per pixel in the data, and the rescaling of the image's pixel values as specified in the Options window are applied when the Load Image button is pressed.




    Copyright 1994-99 Division of Physiologic Imaging, Dept. of Radiology, Univ. of Iowa


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