10 Questions
Which factors affect image contrast in diagnostic imaging?
Intrinsic contrast parameters and extrinsic contrast parameters
What is the main advantage of MRI compared to other imaging modalities?
Excellent soft tissue discrimination
What are examples of extrinsic contrast parameters?
$TR$ and $TE$
What are examples of intrinsic contrast parameters?
Proton density (PD) and flow
What must clinical diagnostic images demonstrate in order to identify anatomy or detect abnormalities within the body?
$Contrast$ between normal anatomical features and between anatomy and pathology
Which parameter affecting image contrast in MRI cannot be changed because it is inherent to the body’s tissues?
Proton density (PD)
What is one of the main advantages of MRI compared to other imaging modalities?
Excellent soft tissue discrimination
What does T1 recovery time refer to in MRI?
Time for longitudinal magnetization to recover 63% of its maximum value
What are examples of extrinsic contrast parameters in MRI?
$TI$, turbo factor/echo train length
What are the factors that affect image contrast in diagnostic imaging usually divided into?
T1 contrast and T2 contrast
This quiz covers the concepts of image contrast, relaxation, T1 recovery, T2 decay, and various contrast mechanisms in Magnetic Resonance Imaging (MRI). It also discusses the importance of contrast in clinical diagnostic images for identifying anatomy and detecting abnormalities.
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