Medical Imaging Modalities (X-Ray)

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How does the size of the X-ray focal spot affect focal blur?

A smaller focal spot produces more blur

A smaller focal spot produces less blur (correct)

A larger focal spot produces less blur

A larger focal spot has no effect on blur

What effect does a longer Object-to-Image Distance (OID) have on focal blur?

Has no effect on blur

Decreases blur

Increases blur (correct)

Reduces image sharpness

How does Source-to-Object Distance (SOD) impact focal blur?

SOD has no impact on focal blur

Closer proximity increases blur

Increasing distance decreases blur

Decreasing distance increases blur (correct)

What is the key factor influencing subject contrast in radiography?

$kVp$ Signup and view all the answers

How can technicians minimize focal blur in radiography?

Optimizing equipment settings Signup and view all the answers

Which of the following decreases focal blur in X-ray imaging?

$OID$ increase Signup and view all the answers

What happens to focal blur when the distance between the object and the image receptor increases?

$OID$ increases Signup and view all the answers

Which factor has the most significant impact on reducing focal blur in radiography?

$kVp$ Signup and view all the answers

What effect does a smaller X-ray focal spot size have on image sharpness?

$Focal$ $Spot$ $Size$ decreases Signup and view all the answers

Why is reducing focal blur important in radiography?

To improve diagnostic image quality Signup and view all the answers

Medical Imaging Modalities (X-Ray) - Lecture 6

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Questions and Answers

How does the size of the X-ray focal spot affect focal blur?

What effect does a longer Object-to-Image Distance (OID) have on focal blur?

How does Source-to-Object Distance (SOD) impact focal blur?

What is the key factor influencing subject contrast in radiography?

How can technicians minimize focal blur in radiography?

Which of the following decreases focal blur in X-ray imaging?

What happens to focal blur when the distance between the object and the image receptor increases?

Which factor has the most significant impact on reducing focal blur in radiography?

What effect does a smaller X-ray focal spot size have on image sharpness?

Why is reducing focal blur important in radiography?

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