What is a Hypocycloidal tomography?
(hī’pō-sī-kloy’dăl) A tricyclic motion used by mechanical tomography units to optimize blurring and reduce artifacts.
What is Pluridirectional tomography?
pluridirectional tomography tomography in which there is a great deal of movement in a variety of directions. positron emission tomography (PET) a combination of computed tomography and scintillation scanning.
What determines the thickness of a tomographic section?
The thickness of the tomographic section is directly related to the exposure angle (the angle produced by the tube movement). A small exposure angle produces a thick slice or section. A large exposure angle produces a very thin section.
What is the device that directs the light emitted from the image intensifier to various viewing and imaging apparatus?
Equipment Operation and Quality Control
| Question | Answer |
|---|---|
| What is the device that directs the light emitted from the image intensifier to various viewing and imaging apparatus? (pg. 285 #47) | Beam splitter |
| What contributes to inherent filtration? (pg. 285 #49) | X-ray tube glass envelope, x-ray tube port window |
What is tomographic angle?
Tomography (Fig. Conventional tomography is now less commonly used because of the availability of cross-sectional imaging techniques such as US, CT, and MRI. The amplitude of tube traveling is measured in degrees (tomographic angle). • The wider the angle, the thinner the section.
Which factor s determine s the thickness of the plane imaged during linear tomography?
Physics of Image Production
| Question | Answer |
|---|---|
| What determines the thickness of tissue imaged during linear tomography? | Tomographic angle |
| What is the thickness of tissue imaged during conventional tomography called? | The tomographic layer |
| What would the tomographic angle be for Zonographic Tomography? | Less than 10 degrees |
What is a tomographic image?
1 Introduction. ¯ Tomography is a non-invasive imaging technique allowing for the visualization of the internal structures of an. object without the superposition of over- and under-lying structures that usually plagues conventional projection images.
What is Zonography?
Zonography is a variation of linear tomography, where a limited arc of movement is used. It is still used in some centers for visualizing the kidney during intravenous urography (IVU). Tomography. Tomography is imaging by sections or sectioning to obtain images of slices through objects like the human body.
What is the device that directs the light emitted from the image intensifier to various viewing and imaging apparatus quizlet?
a device that stores electrical energy. The stored energy is used to operate the x-ray tube only. What is the device that directs the light emitted from the image intensifier to various viewing and imaging apparatus? filament.
What is the purpose of the vidicon and Plumbicon in an image intensifier?
COMPREHENSIVE EQUIPM
| Question | Answer |
|---|---|
| the capacitor must be charged | just before the exposure is made |
| Double-focus x-ray tubes have two | filaments |
| TV camera tubes used in image intensification, such as the Plumbicon and Vidicon, function to | transfer the output phosphor image to the TV monitor |
What is tomographic ultrasound imaging?
Methods: A new technology, tomographic ultrasound imaging (TUI), allows the examiner to obtain a volume data set that simultaneously displays multiple images at specific distances from the 4-chamber view.