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In digital subtraction angiography (DSA), an image is obtained prior to the introduction of the radio-opaque contrast medium. This image is then digitally "subtracted" by turning it into a "negative" and then superimposing the image onto images acquired after the injection of contrast. This theoretically results in everything but the image of contrast within the vessel being subtracted, or removed, leaving a clearer picture. Often due to patient movement, breathing etc, the two images do not exactly superimpose and some residual shadow of the surrounding structures may be visible.
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What does the word difference mean in math?
"Difference" means subtraction. for example the "difference" between 9 and 2 is 7.
What do you call the answer to a subtraction prolbem?
The answer to a subtraction problem is called the difference. It is called this, because when you are subtracting you are finding the difference between one number and another.
What is the difference in math terms?
Difference is a subtraction word. What is the difference between 5 and 2 = 3
What is the difference between -1 and 4?
Difference = Subtraction (-1) - (4) = -5
What Is The difference between 5C and 18C?
13C or -13C depending on the order of subtraction
What is the difference between sum and difference?
sum is addition difference is subtraction
What does the word difference mean in math?
"Difference" means subtraction. for example the "difference" between 9 and 2 is 7.
What do you call the answer to a subtraction prolbem?
The answer to a subtraction problem is called the difference. It is called this, because when you are subtracting you are finding the difference between one number and another.
What is the difference in math terms?
Difference is a subtraction word. What is the difference between 5 and 2 = 3
Difference between hand drawings and digital art?
difference between hand drawings and digital art
What is the difference between digital sound and digitized sound?
what is the difference between digital sound and digitized sound
What is the difference between -1 and 4?
Difference = Subtraction (-1) - (4) = -5
What is the difference between compact discs and digital versatile discs?
what is difference between compact discs and digital versalite discs
What is the difference of 240?
The difference is a subtraction sum between two or more numbers. A single number cannot have a difference.
What are the properties of subraction?
Subtraction is an operation in mathematics that involves finding the difference between two numbers. The result of a subtraction operation is called the difference. Subtraction is the opposite of addition, and it involves taking away one quantity from another.
What is the difference between digital boxes and digital adapters?
The difference between digital boxes and digital adapters is that digital boxes can offer extra services such as Pay Per View, On Demand and Premium Channels such as HBO.
What does the word difference mean when your doing math?
Difference" means subtraction. for example the "difference" between 9 and 2 is 7
