CT Procedures II Unit 4

Question 1

Which modality is most often coupled with CT to perform interventional procedures?

Accepted Answer

ultrasound

Question 2

What are the most common interventional procedures performed in CT?

Accepted Answer

CT-guided biopsies

Question 3

To reformat a CT study, all the source images must have an identical:

Accepted Answer

all of these are correct

Question 4

Which technique uses virtual reality concepts in creation of inner views of tubular structures?

Accepted Answer

virtual endoscopy

Question 5

What is the primary complication of CT-guided lung biopsies?

Accepted Answer

Pneumothorax

Question 6

The overall complication rate for a fine-needle biopsy is approximately what percent?

Accepted Answer

2%

Question 7

Molecular imaging is defined as any method that investigates events at the ______ & ____levels.

Accepted Answer

molecular and cellular

Question 8

What is the primary complication of all types of biopsy procedures?

Accepted Answer

Bleeding

Question 9

CT scanners made for radiation therapy planning have gantry openings that ____________ typical.

Accepted Answer

are larger than

Question 10

To avoid _____ in PET/CT, extravasation of any radiopharmaceutical should be noted by the tech.

Accepted Answer

possible misinterpretation

Question 11

Virtual endoscopy includes all of the following applications except:

Accepted Answer

virtual arthroscopy

Question 12

These factors must be considered before the use of virtual endoscopy becomes commonplace except

Accepted Answer

it must reduce patient dose

Question 13

Volume rendering provides the best results because it:

Accepted Answer

all of these are correct

Question 14

PET/CT combines the benefits of _______ information from CT and _________ information from PET.

Accepted Answer

anatomic;metabolic

Question 15

Which of the following exams has been largely replaced by CT colonography?

Accepted Answer

double-contrast barium enema

Question 16

All of the following are limitations of PET/CT technology except:

Accepted Answer

anatomical correlation

Question 17

Which of the following is true regarding CT fluoroscopy?

Accepted Answer

Allows for near real-time capabilities of true fluoroscopy.

Question 18

A whole-body PET-CT scan takes approximately _____ minutes.

Accepted Answer

10-40

Question 19

What staffing problem is caused by the evolution of hybrid PET/CT scanners?

Accepted Answer

Technologists are very rarely trained in both modalities.

Question 20

Tumor imaging with FDG is based on the fact that ______ favor a glycolytic path for metabolism.

Accepted Answer

malignant tumors

Question 21

Which of the following is a laboratory evaluation done prior to CT-guided biopsy procedures?

Accepted Answer

all of these are correct

Question 22

How can dose rates be minimized when CT Fluoroscopy (CTF) is used?

Accepted Answer

By exclusively using intermittent fluoroscopy

Question 23

For PET-CT exams, the patient must rest & fast for _____ hour(s) before injection & scanning.

Accepted Answer

4

Question 24

The Navigator visualization software allows for all of the following except:

Accepted Answer

Capabilities for tumor staging

Question 25

Which is a drawback to using sequential CT scanning for intervention procedures?

Accepted Answer

The procedure can be lengthy.

CT Procedures II Unit 4

Questions 25

CT Procedures II Unit 4

Questions 25