Radiology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Photopic | Cones
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| Scotopic | Rods
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| Photographic Properties | Density, Contrast
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| Geometric Properties | Detail, Distortion
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| Density | Overall Blackness
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| Contrast | Differences in adjacent densities
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| Detail | Sharpness of lines
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| Distortion | Misrepresentation of the true size or shape of the image as compared to the object
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| Low Contrast | Many shades of grey
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| High Contrast | Black and white
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| Day Vision | Photopic
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| Night Vision | Scotopic
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| Veil Glare | Bright light floods the eye and reduces contrast perception
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| Mach Effect | The eye percieves a boundary between differing densities
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| Pattern Recognition | Comparing mental images of patterns to arrive at a diagnosis
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| Why two images at 90 * angles | To achieve a three dimensional image
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| Recorded Detail | What is on film
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| Visibility Detail | What we can see
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| mAs | Milliamp seconds-current times seconds
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| kVp | Kilovolt peak-energy of x-ray
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| Screen | turns x-ray into light
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| Grid | absorbs x-rays and improves contrast
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| Filtration | Absorbs low energy x-rays
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| Pathology | Changes density of tissues
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| SID | Source to Image Distance
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| High Density | Too Dark
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| Low Density | Too Light
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| Size Distortion | Always Magnification
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| Motion | Destroys detail
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| Communication to patient | Best way to control motion
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Ranapipins
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