Scanner? I Barely Know Her.
The tube, detector, cooling systems, and more reside within this donut-shaped structure.
What is a gantry?
This is a pixel that has been given a third dimension.
What is a voxel?
This will (usually) either speed up or slow down depending on the pitch.
What is the CT table?
This type of slice width will result in the highest spatial resolution.
What is a thin slice?
This exam extends from just above the external auditory meatus through T-1.
What is a CT Cervical Spine?
This man is the reason CT exists.
Who is Godfrey Hounsfield?
The Hounsfield scale was centered off of this due to its uniformity and abundance in the human body.
What is water?
A pitch less than 1 is common when scanning this anatomy.
What are temporal bones, IAC's, or mastoids?
This reconstruction method is commonly used in CT Angiography to highlight vessels.
What is a MIP?
These two lab values are commonly used to determine a patient's renal function.
What is BUN and Creatinine?
This technology allowed the use of continuous, or helical scanning.
What are slip rings?
A group of pixels arranged into rows and columns is known as this.
What is a matrix?
What are the lungs?
This allows the dialing-in of specific contrast flow rates.
What is the contrast injector?
CT exams that require a high contrast flow rate of at least 3.5ml/s.
What is CT angiography?
The CT generation that is still in use today.
What is the 3rd generation?
The process of taking a volume of data and slicing it into different anatomical planes.
What is multi-planar reformation (or reconstruction)?
Pitch is only a factor with this type of scanning.
What is helical scanning?
The process of converting a stack of two-dimensional CT cross-sectional slices into an interactive, three-dimensional model.
What is volume rendering technique?
IV contrast is not indicated for this exam if a patient complains of flank pain.
What is a CT Abdomen/Pelvis (stone study)?
This object, often made of aluminum, shapes the x-ray beam both geometrically and energetically.
What is the bowtie filter?
The artifact caused by vast differences in density between two closely-spaced objects.
What is beam hardening artifact?
This factor, which determines how much anatomy is scanned with each rotation, can also affect pitch.
What is the beam width or beam collimation?
The main problem solved by CT that cannot be solved by traditional radiography.
What is superimposition?
This specialty "4-D" exam is commonly performed during a stroke alert.
What is a CT Perfusion study?