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WorksheetsRad Path Chapter 2 Specialized Imaging Techniques
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
Screening mammography images include
a)
AP and lateral projections
b)
craniocaudal and mediolateral oblique projections
c)
craniocaudal and mediolateral projectio
d)
craniocaudal, mediolateral oblique, and mediolateral projection
2.
Air and bone are _____ in ultrasound.
a)
Hyperechoic
b)
Anechoic
c)
Acoustic barri
d)
Isoechoic
3.
Helical scanning uses
a)
conventional single-slice scans
b)
table movement during scans
c)
Continuous x-ray exposure during scanning
d)
Table movement during scanning and continuous XRay exposure during scanning
4.
Cross-sectional images projected by high-frequency sound waves is the modality known as
a)
US
b)
CT
c)
SPECT
d)
MRI
5.
In US, the transducer
a)
A. records the changes in signal pitch and direction
b)
B. Is made of tungsten
c)
C. Produces high-frequency sound waves
d)
D. A and C
6.
Tissue that is echo free or lacking in signal is
a)
Anechoic
b)
Echogenic
c)
Hyperechoic
d)
Isoechoic
7.
The CT number represents the
a)
Attenuation of specific tissue relative to water
b)
Signal intensi
c)
Tissue echogenicity
d)
Radionuclide concen
8.
High-resolution CT
a)
requires a section thickness of 5 to 10 mm
b)
Requires thin section slices 1.5 to 2 mm
c)
decreases resol
d)
Increases volume artifact
9.
In CT the images that demonstrate the inside of a structure through reconstruction are called
a)
Attenuation of specific tissue relative to water
b)
Signal intensity
c)
Virtual reality
d)
Minimum intensity projection
10.
The modality of choice for the spine and central nervous system us
a)
US
b)
CT
c)
MRI
d)
SPECT
11.
The time it takes to play out the entire set of RF pulses before repeating is
a)
Repetiton time
b)
Echo time
c)
RF Pulsing
d)
A T1-weighted image
12.
On MRI, blood flow is described as a
a)
signal void
b)
high intensity signal
c)
low signal inten
d)
bright reflection
13.
Tissue suppression in MRI
a)
1. Creates a greater difference in tissue contrast
b)
2. Is used in the neck, abdomen, and pelvis
c)
3. Helps to differentiate tumor from normal tissue
d)
4. 1, 2, and 3
14.
Molecular movement and random thermal motion are what _____MR images rely on to produce an image.
a)
diffusion
b)
fat-suppressed
c)
functional
d)
spectroscopic
15.
Gamma radiation detected by a gamma camera is emitted by
a)
gadolinium chelates
b)
iodinated contrast agents
c)
radiopharmaceuticals
d)
non-ionic contrast agents
16.
In the gamma camera, when the gamma rays interact with the crystals, they produce
a)
electromagnetic frequenc
b)
light
c)
Radiation
d)
Soundwaves
17.
The advantage of NM is this
a)
A physiologic map is produced
b)
An anatomic map is produced
c)
Earlier detection of a disease process is produced in comparison with plan radiographs
d)
More than one but not all of these answers
18.
the major difference between SPECT and NM procedures is that
a)
NM produces a 3D image, whereas SPECT does not
b)
SPECT cameras rotate independently around the patient, whereas the NM camera is stationar
c)
NM uses radio pharmaceuticals that produce higher doses than those used in SPECT
d)
There are no differences between NM scans and SPECT scans
19.
in PET scanning, the radiopharmaceutical produces
a)
a neutron
b)
a positron
c)
an electron
d)
an x-ray
20.
The modality that best demonstrates treatment results and is the most effective to illustrate recurring tumor growth is
a)
MRI
b)
SPECT
c)
NM
d)
PET
21.
The modality that has been found to best demonstrate the physiologic changes in Alzheimer's disease is
a)
MRI
b)
SPECT
c)
CT
d)
PET
22.
The imaging modality that best demonstrates molecular physiologic and anatomic relationships is
a)
fusion imaging
b)
PET
c)
CT
d)
SPECT
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