Physics of Image Production
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| During conventional Tomography, structures lying outside the object plane are blurred because of what? | Motion blur
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| Conventional tomography employs what principle? | Motion blur
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| What is the MAJOR advantage of conventional tomography? | Contrast resolution
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| Conventional tomography has also been called what? | Laminography,Planigraphy,Stratigraphy
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| What will the IR do during conventional tomography? | Move opposite the x-ray tube in a seesaw motion
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| What determines the thickness of tissue imaged during linear tomography? | Tomographic angle
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| What is the thickness of tissue imaged during conventional tomography called? | The tomographic layer
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| What would the tomographic angle be for Zonographic Tomography? | Less than 10 degrees
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| When the tomographic angle is 0 degrees, the tomographic layer will be _________. | Infinite
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| During conventional tomography, the fulcrum is in the ____ _____. | Focal Plane
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| The tomographic angle is the angle of x-ray tube movement during what? | x-ray exposure
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| The MAJOR disadvantage of conventional tomography is ________ ________ _______. | Increased patient dose
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| Name the five types of multidirectional tomographic modes. | Circular, Elliptical, Figure 8, Hypocycloidal and spiral(trispiral)
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| What is the relationship between tomographic angle and section thickness | Large angle=Small Thickness; Small Angle=Large thickness
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| When the Grossman principle is used to alter the focal plane level, ________ remains stationary and ________ is raised or lowered | Fulcrum, Table
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| When the planigraphic principle is used to alter the focal plane, the fulcrum system is ________. The _________ is raised or lowered while the ________ remains stationary. | Adjustable, Fulcrum, Stationary
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| What are the essential ingredients for Linear Tomography? | x-ray tube, movable bucky and rigid connecting rod which rotates about a fixed fulcrum
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| _______ is a special x-ray technique that ______out the _______ of superimposed structures to show clearly the principle structures being examined | Tomography. blurs. shadows.
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| Tomography is also referred to as __________ ________ _____________. | body section radiography
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| The plane of maximum focus in tomography is referred to as what? | Object/Focal plane
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| How would you locate the tomographic scout level when performing an examination of the kidneys? | measure patient, divide by 2 and subtract two.
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