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  2. Projectional radiography - Wikipedia

    en.wikipedia.org/wiki/Projectional_radiography

    where Size projection is the size of the projection that the object forms on the detector. On lumbar and chest radiographs , it is anticipated that ERMF is between 1.05 and 1.40. [ 6 ] Because of the uncertainty of the true size of objects seen on projectional radiography, their sizes are often compared to other structures within the body, such ...

  3. How to Create a Financial Projection in Excel - AOL

    www.aol.com/finance/create-financial-projection...

    Developing a financial projection in Excel from scratch can be time-consuming, and data entry or formula errors will lead to inaccurate results. ... Use a small business cash flow projection template.

  4. File:MapProjections AWorkingManual.pdf - Wikipedia

    en.wikipedia.org/wiki/File:MapProjections_A...

    After decades of using only one map projection, the Polyconic, for its mapping program, the U.S. Geological Survey (USGS) now uses several of the more common projections for its published maps. For larger scale maps, including topographic quadrangles and the State Base Map Series, conformal projections such as the Transverse Mercator and the ...

  5. List of map projections - Wikipedia

    en.wikipedia.org/wiki/List_of_map_projections

    In normal aspect, pseudoconical projections represent the central meridian as a straight line, other meridians as complex curves, and parallels as circular arcs. Azimuthal In standard presentation, azimuthal projections map meridians as straight lines and parallels as complete, concentric circles. They are radially symmetrical.

  6. Chest radiograph - Wikipedia

    en.wikipedia.org/wiki/Chest_radiograph

    In the US, chest radiography includes a PA and Lateral with the patient standing or sitting up. Special projections include an AP in cases where the image needs to be obtained stat (immediately) and with a portable device, particularly when a patient cannot be safely positioned upright. Lateral decubitus may be used for visualization of air ...

  7. Maximum intensity projection - Wikipedia

    en.wikipedia.org/wiki/Maximum_intensity_projection

    An alternate version of MIP is Local maximum intensity projection. In this technique we don't take the global maximum value, but the first maximum value that is above a certain threshold. Because - in general - we can terminate the ray earlier this technique is faster and also can give better results in some settings as it approximates ...

  8. Tomographic reconstruction - Wikipedia

    en.wikipedia.org/wiki/Tomographic_reconstruction

    Tomographic reconstruction: Projection, Back projection and Filtered back projection. Tomographic reconstruction is a type of multidimensional inverse problem where the challenge is to yield an estimate of a specific system from a finite number of projections. The mathematical basis for tomographic imaging was laid down by Johann Radon.

  9. Wikipedia : WikiProject Maps/Conventions/Orthographic maps

    en.wikipedia.org/wiki/Wikipedia:WikiProject_Maps/...

    These conventions are from Commons:Grey-green orthographic projections maps, although maps are not [yet] consistent in presentation style. Discuss proposed improvements. The surrounding area colours were taken from Commons:Template:EU-SVG-en.