Exam 20: Diagnostic and Therapeutic Modalities

Breathing must be suspended for projections of the breast.

Which member of the radiation oncology team serves as a conduit for patient referrals to social services?

Longitudinal or spin lattice relaxation when spins begin to precess at smaller angles is termed:

Matching of the frequency of a precessing nucleus with a radio wave frequency is termed:

Which generation of ultrasound unit first introduced a two-dimensional gray scale?

What is the energy source used with digital breast tomosynthesis (DBT)?

Often, the gamma camera in nuclear medicine systems is coupled with ____ to provide both an anatomic and functional study of the body.

Which technique or method is most common for measuring bone density using a peripheral site such as the os calcis?

According to current research, there are moderate adverse biologic effects associated with the use of medical ultrasound.

The amount of adipose tissue from one female breast to another is fairly consistent.

The standard(s) being used with dual-energy x-ray absorptiometry to compare the patient's bone density measurements is/are:

Which of the following factors helps reduce peristaltic motion during an MRI of the abdomen?

Bone cells that are responsible for bone resorption are:

Which of the following is considered a type of external beam therapy?

Digital mammography in all likelihood will become the method of choice for breast cancer screening examinations because of its postprocessing capability and other advantages.

PET and MRI data sets cannot be co-registered to create a hybrid image.

Radiopharmaceuticals are introduced into the body:

Which of the following structures is labeled 1?

Which radioactive tracer is commonly used to assess amino acid metabolism in a central nervous system (CNS) tumor?

What projection should be performed if a deep lesion in the axillary tissue is not seen on the exaggerated craniocaudal projection?