Deck 12: Special Imaging Modalities

Question 1

MRS and MRSI are also referred to as:

A) SPECT.
B) fMRI.
C) MRA.
D) Doppler imaging.

Answer 1

fMRI.

Question 2

Narrowing or blockage of an artery caused by the buildup of fatty plaque is called:

A) angioedema.
B) atherosclerosis.
C) aortic aneurysm.
D) arteritis.

Answer 2

atherosclerosis.

Question 3

Follow-up care to the angiography injection site after removal of an arterial catheter involves:

A) hot packs.
B) cold packs.
C) direct pressure on the artery for 5 to 10 minutes.
D) application of an adhesive bandage only.

Answer 3

direct pressure on the artery for 5 to 10 minutes.

Question 4

Patients with implanted cardiac pacemakers cannot have which of the following procedures?

A) Angiography
B) MRI
C) Sonography
D) Mammography

Question 5

Radiofrequency ablation is a technique that involves:

A) destruction of breast lesions in the mammography department.
B) the use of radioisotopes for evaluating heart function.
C) the use of both Doppler sonography and interventional angiography to treat veins.
D) inhalation of a radioactive gas to study lung function.

Question 6

An imaging modality that is commonly used to produce axial images of the spinal canal following routine myelography while the contrast medium is still within the spinal canal is:

A) CT.
B) MRI.
C) sonography.
D) nuclear medicine.

Question 7

A computerized imaging modality that uses high-frequency sound waves to produce images of soft tissue structures is called:

A) magnetic resonance imaging (MRI).
B) mammography.
C) sonography.
D) angiography.

Question 8

The rare earth element used to create contrast for certain magnetic resonance imaging studies is:

A) lanthanum.
B) ytterbium.
C) gadolinium.
D) barium.

Question 9

Radiofrequency coils are essential parts of the equipment used to perform:

A) MRI.
B) SPECT.
C) Doppler sonography.
D) PET.

Question 10

A computerized imaging modality that uses x-rays to produce images in the axial plane is called:

A) magnetic resonance imaging (MRI).
B) mammography.
C) sonography.
D) computed tomography (CT).

Question 11

The Seldinger technique is a method of:

A) visualizing the pancreatic duct.
B) performing a lumbar puncture.
C) placing a catheter for arteriography.
D) detecting lesions of the breast.

Question 12

A computerized imaging modality using a strong magnetic field and radiofrequency pulses to produce images in multiple planes is called:

A) MRI.
B) mammography.
C) CT.
D) angiography.

Question 13

A scanner that includes a gantry with an x-ray tube that rotates around the patient is used to perform:

A) MRI.
B) PET.
C) CT.
D) Doppler sonography.

Question 14

The risk of significant problems in the event of extravasation during contrast injection is greatest for which of the following procedures?

A) MRI
B) Sonography
C) Mammography
D) CT

Question 15

The U.S.Food and Drug Administration (FDA)and the American College of Radiology (ACR)cooperate in a program to provide certification of imaging departments that provide:

A) MRI.
B) angiography.
C) nuclear medicine procedures.
D) mammography.

Question 16

What medication is recommended for treatment of postmammography pain?

A) Magnevist
B) Glucagon
C) Solu-Medrol
D) Acetaminophen

Question 17

The principal strategy employed for safety in the magnetic environment of the MRI scan area is:

A) a magnetic field barrier shield.
B) strict limits on the time spent in the magnetic field.
C) limiting access to the area and screening those who enter.
D) antimagnetic apparel.

Question 18

Digital subtraction angiography (DSA)is a computerized imaging modality that is utilized to produce images of the:

A) circulatory system.
B) biliary system.
C) urinary tract.
D) breast.

Question 19

A gamma camera is part of the equipment used to perform:

A) CT angiography of the renal artery.
B) a technetium bone scan.
C) transcatheter embolization.
D) an obstetric sonogram.

Question 20

The imaging modality that is most likely to cause patients to experience claustrophobia is:

A) PET.
B) MRI.
C) SPECT.
D) CT.

Question 21

Which imaging modality is NOT used to image the female breast?

A) Mammography
B) CT
C) Nuclear medicine
D) Angiography

Question 22

What type of scan is required in stroke protocols to rule out brain hemorrhage before initiating thrombolytic therapy?

A) CT
B) PET
C) MRI
D) MRA

Question 23

Which of the listed imaging modalities is a nuclear medicine procedure similar to PET that uses different radiopharmaceuticals,such as ¹³³Xe (xenon),⁹⁹ᵐTc (technetium),and ¹²³I (iodine)?

A) CT
B) DSA
C) SPECT
D) Magnetic resonance angiography (MRA)

Question 24

A very safe,noninvasive imaging modality that is used extensively for obstetric evaluations is:

A) sonography.
B) CT.
C) nuclear medicine.
D) angiography.

Question 25

Hybrid computerized imaging systems that blend two types of equipment to obtain both anatomic and functional information and correlate the results in a single procedure are called:

A) fusion imaging.
B) fMRI.
C) Doppler imaging.
D) SPECT.

Question 26

The imaging modality used to perform lymphoscintigraphy is:

A) MRI.
B) magnetic resonance spectroscopy (MRS).
C) CT.
D) nuclear medicine.

Question 27

An aortogram is a study of the aorta using which imaging modality?

A) Sonography
B) Angiography
C) Angioplasty
D) Nuclear medicine

Question 28

A transducer is a key component of the equipment used to perform:

A) sonography.
B) CT.
C) nuclear medicine scans.
D) mammography.

Question 29

Transcatheter embolization is an interventional technique used to:

A) open a constricted vessel to increase blood flow.
B) decrease or stop blood flow.
C) visualize the status of an artery.
D) facilitate stent placement.

Question 30

Which of the following scanners makes such a loud noise that patients are offered earplugs or recorded music to cope with the sound?

A) Spiral/helical CT
B) MRI
C) PET
D) SPECT

Question 31

A gamma detector array in a gantry that surrounds the patient and obtains axial images is used for which of these imaging modalities?

A) CT
B) MRI
C) Sonography
D) PET

Question 32

Which type of equipment poses a potential threat of harm from flying objects?

A) CT
B) PET
C) MRI
D) DSA

Question 33

The imaging modality most commonly used to localize needle placement for amniocentesis is:

A) angiography.
B) CT.
C) sonography.
D) mammography.

Question 34

Thrombus is the term for a:

A) foreign object in the bloodstream.
B) device for holding a vessel open.
C) blood clot attached to a vessel wall.
D) hemorrhage.

Question 35

A newer generation of scanners,called harmonic scanners,is advancing the ability to obtain clear images in which of these modalities?

A) MRI
B) PET
C) Sonography
D) Angiography