Question 1

In CT, preoperative assessments of abdominal aortic aneurysms are performed for all of the following reasons except:

Accepted Answer

Preoperative CT assessments are not used to determine surgery time; they focus on anatomical details and planning.

Question 2

A triphase study of the liver includes all of the following except:

Accepted Answer

A triphase study of the liver typically includes the arterial phase, venous phase, and delayed phase. The preinjection phase is not part of this study.

Question 3

Computed tomographic imaging of the adrenal glands is easy and reliable, except when the patient is extremely _________.

Accepted Answer

C

Question 4

In patients with known or suspected bronchogenic carcinoma, computed tomography (CT) is used to determine the extent of invasion to all of the following except:

Accepted Answer

CT is used to assess the extent of invasion into structures like the chest wall, diaphragm, and mediastinum, but it is not primarily used to determine the extent of lymph node invasion. Lymph node involvement is typically assessed using other imaging modalities or biopsy.

Question 5

In a trauma study of the liver, all of the following conditions can be demonstrated except:

Accepted Answer

A trauma study of the liver focuses on liver-specific injuries, such as active hemorrhage, hematoma, and lacerations. Hemothorax, however, involves blood in the pleural cavity of the chest, not the liver.

Question 6

Computed tomographic imaging of the bowel for evaluation of bowel obstructions can demonstrate all of the following except:

Accepted Answer

CT imaging can confirm bowel obstruction, determine the level of obstruction, and indicate possible vascular compromise, but it does not specifically measure bowel fluid.

Question 7

The ascending aorta is labeled:

Accepted Answer

The answer of The ascending aorta is labeled: 
...

Question 8

What is the most common indication for splenic imaging?

Accepted Answer

Trauma is the most common indication for splenic imaging, as it can detect splenic lacerations, hematomas, and other injuries.

Question 9

Abdomen and pelvis scans are commonly obtained with the patient in a _________ position.

Accepted Answer

The supine position is the most common position for abdomen and pelvis scans as it allows for optimal visualization and access to the area being examined.

Question 10

The introduction of___________ enhanced the capability of determining the exact location of needle placement.

Accepted Answer

Computed tomographic fluoroscopy (CTF) is a technique that combines fluoroscopy with computed tomography (CT) to provide real-time images of the body. This allows for more precise needle placement during procedures such as biopsies and injections.

Question 11

Coronary artery studies present each of these challenges during computed tomographic angiography except:

Accepted Answer

Computed tomographic angiography is a non-invasive imaging technique, so the invasive nature of acquiring images is not a challenge associated with it.

Question 12

Patients with diverticulitis will usually feel pain in the:

Accepted Answer

Diverticulitis typically causes pain in the left lower quadrant of the abdomen, where the sigmoid colon is located.

Question 13

What classification of chest CT can best diagnose conditions such as pulmonary lacerations, hemothorax, and pneumothorax?

Accepted Answer

Trauma CT is specifically designed to assess and diagnose injuries resulting from trauma, such as pulmonary lacerations, hemothorax, and pneumothorax.

Question 14

Computed tomographic imaging of bony tumors is useful in determining all of the following except:

Accepted Answer

Computed tomographic imaging is not used to measure bone strength; it is used to assess structural details like cortical integrity, articular involvement, and tumor location.

Question 15

High-resolution CT (HRCT) is effective in evaluating all of the following except:

Accepted Answer

HRCT is primarily used for detailed imaging of lung parenchyma and interstitial lung diseases, not for vascular conditions like dissecting aneurysm.

Question 16

All of the following should be performed by the technologist before the examination except:

Accepted Answer

Summoning the radiologist is not typically the responsibility of the technologist before the examination; it is usually done when the examination is ready to be interpreted or if there is a specific need for the radiologist's presence.

Question 17

What is the digital localizing radiograph that usually begins a computed tomographic?

Accepted Answer

A topogram is a digital localizing radiograph used in computed tomography to plan the scan by determining the exact area to be imaged.

Question 18

Computed tomographic imaging of skeletal trauma includes anatomical regions of the:

Accepted Answer

The answer of Computed tomographic imaging of skeletal trauma includes...

Question 19

In the evaluation of renal calculi, advantages of a noncontrast CT over a conventional intravenous (IV) pyelogram include each of the following except:

Accepted Answer

Noncontrast CT generally involves a higher radiation dose compared to a conventional IV pyelogram, which is why option A is the exception.

Question 20

CT of the lungs is useful in diagnosing the following abnormalities except:

Accepted Answer

Pleurisy is a condition that affects the pleura, the lining of the lungs and chest cavity. CT scans are not useful in diagnosing pleurisy.

Quiz 16: Computed Tomography of the Body