|| MOST RECENT EXAM 2026|2027 ACTUAL COMPLETE
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-1000
CT # of Air
-100 to -50
CT # of Fat
0
CT # of Water
20-80
CT # of Blood
35-50
CT # of Muscle
20-80
CT # of Soft-Tissue
,400-1000
CT # of Bone
Blood
Most body tissues have CT #'s that are close to that of ____________ .
- (u tissue - u water) / u water x 1000
Calculation for CT # using linear coefficient (u)
Kernels
Image reconstruction algorithms in CT referred to as ____________ .
512 x 512
CT raw data are most often reconstructed w/ a _______ matrix.
FDG Avid
Neuronal cell bodies, neurophil and glial cells
Outer
Gray Matter FDG Uptake
Minimally FDG Avid
Myelinated axons, extensions of axons
Inner
White Matter FDG Uptake
,Aminophylline
Theophylline
Bronchodilators
Energy Resolution between 425-600 keV (34%)
68-Ge Source
PET: Energy Window Calibration
3 cm or less
Pulmonary Nodule Size
Papillary and Follicular
Differentiated Thyroid Cancer is dived into 2 categories:
High Temporal Resolution
Lower Scanning Time
Higher Image Quality
High sensitivity in PET over SPECT results in:
Reproducible
According to CMS an inconclusive test is one in which the results are
not:
Granulocyte-colony stimulating factor (G-CSF)
This therapy has promoting effect on spleen and bone marrow:
, Overestimation
Presence of oral CT contrast will have this effect on SUV:
Oral
If IV access is not available this route of administration is acceptable:
Masked myocardial ischemia
Lowered count statistics
Altered biodistribution
An infiltrated dose can result in:
Degree of Cell Differentiation
Radiosensitivity of a tissue is inversely proportional to:
Perfusion Study
This type of study defined as flow per unit volume
100/ min
CPR and ECC recommend a compression rate of:
Screening
NSCLC is not covered for which stage: