Principles of Radiographic Imaging 5th Edition Chapter 18
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| Two Linear grids placed on top of one another so that the lead strips form a criss-cross pattern | show 🗑
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| Two linear grids placed on top of one another so that the lead strips form a criss-cross pattern | show 🗑
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| A grid created with the central grid strips parallel with the strips and becoming more inclined as they move away from the central axis; the lines would intersect along a point in space called the line of convergence | show 🗑
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| A device used to improve contrast of the radiographic image | show 🗑
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| show | Grid Cutoff
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| The number of grid lines per inch or centimeter | show 🗑
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| show | Grid Ratio
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| show | Linear Grid
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| show | Parellel Grid
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| show | Grids absorb scattered radiation before it can reach the image receptor
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| As a general rule, when should a grid be used? | show 🗑
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| How is a grid constructed? | show 🗑
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| Define Grid Ratio: | show 🗑
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| What type of grid pattern has lead strips running in only one direction? | show 🗑
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| show | The central grid strips are parallel and as the strips move away from the central axis they become more and more inclinded
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| As the ability of a grid to clean up scatter increases, what is the effect on patient dose and image receptor exposure? | show 🗑
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| show | The contrast improvement factor. K=radiographic contrast with the grid, over radiographi. The higher the K factor, the greater the contrast.
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| How does an off-level grid error occur? | show 🗑
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| show | The technique involves placing the patient at a greater object IR eistance, that creating an air grap between the patient and IR
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