Question 1

Along with the posterior pituitary gland and the infundibulum, what other structure or region is associated with the hypothalamus?

Accepted Answer

A) Thalamus 
B) Olfactory nerve 
C) Optic chiasm 
D) Falx cerebri 
A) Thalamus 
B) Olfactory nerve 
C) Optic chiasm 
D) Falx cerebri

Question 2

Window level (WL) in CT controls the displayed image contrast.

Accepted Answer

A) True 
 B)False

Question 3

Which one of the following pitch ratios represents undersampling?

Accepted Answer

A) 1:1 
B) 2:1 
C) 0.5:1 
D) 0.7:1 
A) 1:1 
B) 2:1 
C) 0.5:1 
D) 0.7:1

Question 4

Prospective electrocardiogram (ECG) gating used during cardiac CT permits the heart to be scanned:

Accepted Answer

A) during maximum cardiac contraction. 
B) while tricuspid and mitral valves are open. 
C) during the diastole cycle. 
D) during the systole cycle. 
A) during maximum cardiac contraction. 
B) while tricuspid and mitral valves are open. 
C) during the diastole cycle. 
D) during the systole cycle.

Question 5

Select the correct lettered portion of the brain.(Use each choice only once.)

-Pons

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E
F)F 
A) A 
B) B 
C) C 
D) D 
E) E
F)F

Question 6

Artifacts caused by patient motion are reduced with volume CT scanning as compared with earlier generation scanners.

Accepted Answer

A) True 
 B)False

Question 7

Submillimeter slice thicknesses are possible with multislice CT scanners.

Accepted Answer

A) True 
 B)False

Question 8

Match each tissue with the correct CT number range.(Use each choice only once.)
-Blood

Accepted Answer

A) +50 
B) +40 
C) +20 
D) -100 
E) -200
F)-1000
G)+1000 or higher 
A) +50 
B) +40 
C) +20 
D) -100 
E) -200
F)-1000
G)+1000 or higher

Question 9

What is the pitch for the following parameters: couch movement of 10 mm/sec and slice thickness per 360° rotation of 20 mm?

Accepted Answer

A) 0.5:1 
B) 2:1 
C) 1:2 
D) 1:1.5 
A) 0.5:1 
B) 2:1 
C) 1:2 
D) 1:1.5

Question 10

What is the name of the deep fissure that separates the two cerebral hemispheres?

Accepted Answer

A) Longitudinal fissure 
B) Central sulcus 
C) Posterior, central sulcus 
D) Falx cerebri 
A) Longitudinal fissure 
B) Central sulcus 
C) Posterior, central sulcus 
D) Falx cerebri

Question 11

Match each tissue with the correct CT number range.(Use each choice only once.)
-Lung tissue

Accepted Answer

A) +50 
B) +40 
C) +20 
D) -100 
E) -200
F)-1000
G)+1000 or higher 
A) +50 
B) +40 
C) +20 
D) -100 
E) -200
F)-1000
G)+1000 or higher

Question 12

Volume acquisition CT slices cannot be reformatted as 3-D images.

Accepted Answer

A) True 
 B)False

Question 13

What is the name of the site where some optic nerve fibers cross in the brain?

Accepted Answer

A) Cisterna magna 
B) Pons 
C) Cisterna pontis 
D) Optic chiasma 
A) Cisterna magna 
B) Pons 
C) Cisterna pontis 
D) Optic chiasma

Question 14

What controls the actual slice thickness on multislice CT scanners?

Accepted Answer

A) Filament of x-ray tube 
B) Postpatient collimator 
C) Size of the detector row used 
D) Prepatient collimator 
A) Filament of x-ray tube 
B) Postpatient collimator 
C) Size of the detector row used 
D) Prepatient collimator

Question 15

Match each tissue with the correct CT number range.(Use each choice only once.)
-Fat

Accepted Answer

A) +50 
B) +40 
C) +20 
D) -100 
E) -200
F)-1000
G)+1000 or higher 
A) +50 
B) +40 
C) +20 
D) -100 
E) -200
F)-1000
G)+1000 or higher

Question 16

CT colonography has eliminated the need for the patient undergoing a bowel preparation

Accepted Answer

A) True 
 B)False

Question 17

Oxygen deprivation to the brain for 4 minutes can lead to permanent brain cell injury.

Accepted Answer

A) True 
 B)False

Question 18

What is the name of the tapered, terminal part of the spinal cord?

Accepted Answer

A) Medulla spinalis 
B) Encephalon 
C) Axon 
D) Conus medullaris 
A) Medulla spinalis 
B) Encephalon 
C) Axon 
D) Conus medullaris

Question 19

A condition caused by an abnormal amount of CSF in the ventricles is termed:

Accepted Answer

A) cerebral atrophy. 
B) hydrocephalus. 
C) pneumoencephalos. 
D) encephalitis. 
A) cerebral atrophy. 
B) hydrocephalus. 
C) pneumoencephalos. 
D) encephalitis.

Question 20

Glucose and oxygen are able to pass through the blood-brain barrier.

Accepted Answer

A) True 
 B)False

Along with the posterior pituitary gland and the infundibulum, what other structure or region is associated with the hypothalamus?

Window level (WL) in CT controls the displayed image contrast.

Which one of the following pitch ratios represents undersampling?

Prospective electrocardiogram (ECG) gating used during cardiac CT permits the heart to be scanned:

Select the correct lettered portion of the brain.(Use each choice only once.) -Pons

Artifacts caused by patient motion are reduced with volume CT scanning as compared with earlier generation scanners.

Submillimeter slice thicknesses are possible with multislice CT scanners.

Match each tissue with the correct CT number range.(Use each choice only once.) -Blood

What is the pitch for the following parameters: couch movement of 10 mm/sec and slice thickness per 360° rotation of 20 mm?

What is the name of the deep fissure that separates the two cerebral hemispheres?

Match each tissue with the correct CT number range.(Use each choice only once.) -Lung tissue

Volume acquisition CT slices cannot be reformatted as 3-D images.

What is the name of the site where some optic nerve fibers cross in the brain?

What controls the actual slice thickness on multislice CT scanners?

Match each tissue with the correct CT number range.(Use each choice only once.) -Fat

CT colonography has eliminated the need for the patient undergoing a bowel preparation

Oxygen deprivation to the brain for 4 minutes can lead to permanent brain cell injury.

What is the name of the tapered, terminal part of the spinal cord?

A condition caused by an abnormal amount of CSF in the ventricles is termed:

Glucose and oxygen are able to pass through the blood-brain barrier.

Terminology, Positioning, and Imaging Principles

Chest

Abdomen

Upper Limb

Humerus and Shoulder Girdle

Lower Limb

Femur and Pelvic Girdle

Cervical and Thoracic Spine

Lumbar Spine, Sacrum, and Coccyx

Bony Thoraxsternum and Ribs

Cranium, Facial Bones, and Paranasal Sinuses

Biliary Tract and Upper Gastrointestinal System

Lower Gi System

Urinary System and Venipuncture

Trauma, Mobile, and Surgical Radiography

Pediatric Radiography

Angiography and Interventional Procedures

Special Radiographic Procedures

Diagnostic and Therapeutic Modalities

Filters

Exam 18: Computed Tomography

Along with the posterior pituitary gland and the infundibulum, what other structure or region is associated with the hypothalamus?

Window level (WL) in CT controls the displayed image contrast.

Which one of the following pitch ratios represents undersampling?

Prospective electrocardiogram (ECG) gating used during cardiac CT permits the heart to be scanned:

Select the correct lettered portion of the brain.(Use each choice only once.) -Pons

Artifacts caused by patient motion are reduced with volume CT scanning as compared with earlier generation scanners.

Submillimeter slice thicknesses are possible with multislice CT scanners.

Match each tissue with the correct CT number range.(Use each choice only once.) -Blood

What is the pitch for the following parameters: couch movement of 10 mm/sec and slice thickness per 360° rotation of 20 mm?

What is the name of the deep fissure that separates the two cerebral hemispheres?

Match each tissue with the correct CT number range.(Use each choice only once.) -Lung tissue

Volume acquisition CT slices cannot be reformatted as 3-D images.

What is the name of the site where some optic nerve fibers cross in the brain?

What controls the actual slice thickness on multislice CT scanners?

Match each tissue with the correct CT number range.(Use each choice only once.) -Fat

CT colonography has eliminated the need for the patient undergoing a bowel preparation

Oxygen deprivation to the brain for 4 minutes can lead to permanent brain cell injury.

What is the name of the tapered, terminal part of the spinal cord?

A condition caused by an abnormal amount of CSF in the ventricles is termed:

Glucose and oxygen are able to pass through the blood-brain barrier.

Terminology, Positioning, and Imaging Principles

Chest

Abdomen

Upper Limb

Humerus and Shoulder Girdle

Lower Limb

Femur and Pelvic Girdle

Cervical and Thoracic Spine

Lumbar Spine, Sacrum, and Coccyx

Bony Thoraxsternum and Ribs

Cranium, Facial Bones, and Paranasal Sinuses

Biliary Tract and Upper Gastrointestinal System

Lower Gi System

Urinary System and Venipuncture

Trauma, Mobile, and Surgical Radiography

Pediatric Radiography

Angiography and Interventional Procedures

Special Radiographic Procedures

Diagnostic and Therapeutic Modalities

Filters