Exam 5: Data Acquisition Concepts

Match the following data acquisition concepts. All answer selections will be used just once. -Filtration

The scanner that uses an electron gun to "shoot" electrons toward a target ring is the:

The purpose of collimation in computed tomography is: I. to protect the patient II. to ensure a constant beam width at the detector III. to reduce scatter radiation

Streaking artifacts are the result of too many samples being measured by the detectors.

A single ray in computed tomography is:

Match the following data acquisition concepts. All answer selections will be used just once. -Detector electronics

Match the following data acquisition concepts. All answer selections will be used just once. -Slip-ring design

Multirow computed tomography detectors fall into two categories, namely, matrix array detectors and pixel array detectors.

Which of the following refers to a method by which the patient is systematically scanned by the x-ray tube and detectors to collect enough information for image reconstruction?

Which of the following is classified as a high-speed computed tomography scanner?

Which x-ray generator is used in modern computed tomography scanners?

Match the following data acquisition concepts. All answer selections will be used just once. -Scintillation

Gas ionization chambers were first introduced in second-generation scanners.

The total number of data samples per scan or per slice in computed tomography is the:

Match the following data acquisition concepts. All answer selections will be used just once. -Semiconductor

The following crystals have been used in scintillation computed tomography detectors except:

The slice thickness in computed tomography is determined by the:

Which scanner allows for continuous rotation of the x-ray tube while the patient moves simultaneously through the gantry aperture?

A view in computed tomography is:

The Stanton x-ray tube was designed by Toshiba Medical Systems.