Question 1

-Refer to the figure. In this image, the arrow points to:

Accepted Answer

A)  Muscle 
B)  Tendon 
C)  Entrapped air 
D)  Intermuscular fat plane 
A)  Muscle 
B)  Tendon 
C)  Entrapped air 
D)  Intermuscular fat plane D

Question 2

-Musculoskeletal CT scanning is typically done with:

Accepted Answer

A)  A slice thickness of 0.5 mm or less 
B)  Contrast-enhanced CT 
C)  Slices of less than 3 mm 
D)  Comparison with MRI 
A)  A slice thickness of 0.5 mm or less 
B)  Contrast-enhanced CT 
C)  Slices of less than 3 mm 
D)  Comparison with MRI C

Question 3

-Windowing (typically expressed in terms of Hounsfield units) refers to the:

Accepted Answer

A)  Size of the field of view in the images 
B)  Pixel density displayed in the images 
C)  Range of radiodensities displayed in an image 
D)  Collimation used when producing the images 
A)  Size of the field of view in the images 
B)  Pixel density displayed in the images 
C)  Range of radiodensities displayed in an image 
D)  Collimation used when producing the images C

Question 4

-The main advantages of CT lie in:

Accepted Answer

A)  Displaying fine detail of cortical bone 
B)  Its ability to differentiate between malignant and benign tumors 
C)  Showing the histological makeup of tissues 
D)  Low radiation 
A)  Displaying fine detail of cortical bone 
B)  Its ability to differentiate between malignant and benign tumors 
C)  Showing the histological makeup of tissues 
D)  Low radiation

Question 5

-What is true of resolution in CT images?

Accepted Answer

A)  Contrast resolution distinguishes between tissues that have very different radiodensities 
B)  Spatial resolution improves with larger matrix size 
C)  Higher contrast resolution always improves the image quality 
D)  Spatial resolution improves the larger the field of view 
A)  Contrast resolution distinguishes between tissues that have very different radiodensities 
B)  Spatial resolution improves with larger matrix size 
C)  Higher contrast resolution always improves the image quality 
D)  Spatial resolution improves the larger the field of view

Question 6

-Refer to the figure. What imaging method is displayed in this axial scan of the lower thoracic spine?

Accepted Answer

A)  CT, soft tissue window 
B)  CT myelogram 
C)  CT, bone window 
D)  3D CT 
A)  CT, soft tissue window 
B)  CT myelogram 
C)  CT, bone window 
D)  3D CT

Question 7

When viewing an axial CT image of the spine:

Accepted Answer

A)  The spinous process points down and the patient's left side is to the left on the image 
B)  The spinous process points down and the patient's right side is to the left on the image 
C)  The spinous process points up and the patient's left side is to the left on the image 
D)  There are no fixed conventions for viewing these images 
A)  The spinous process points down and the patient's left side is to the left on the image 
B)  The spinous process points down and the patient's right side is to the left on the image 
C)  The spinous process points up and the patient's left side is to the left on the image 
D)  There are no fixed conventions for viewing these images

Question 8

-In CT scans, which improves spatial resolution (visible details in the image)?

Accepted Answer

A)  Small matrix size 
B)  Thick slices 
C)  Small field of view 
D)  Low bone density 
A)  Small matrix size 
B)  Thick slices 
C)  Small field of view 
D)  Low bone density

Question 9

-In CT images:

Accepted Answer

A)  Cortical bone appears dark 
B)  Fat appears light gray 
C)  Dense structures appear white 
D)  Muscles have a lighter shade than do tendons 
A)  Cortical bone appears dark 
B)  Fat appears light gray 
C)  Dense structures appear white 
D)  Muscles have a lighter shade than do tendons

Question 10

-Cone beam CT has which characteristic?

Accepted Answer

A)  It constructs images from a large number of slices 
B)  It has longer scanning times but greater image detail 
C)  It is associated with less radiation exposure 
D)  It has less spatial resolution than conventional scanners 
A)  It constructs images from a large number of slices 
B)  It has longer scanning times but greater image detail 
C)  It is associated with less radiation exposure 
D)  It has less spatial resolution than conventional scanners

-Refer to the figure. In this image, the arrow points to:

-Musculoskeletal CT scanning is typically done with:

-Windowing (typically expressed in terms of Hounsfield units) refers to the:

-The main advantages of CT lie in:

-What is true of resolution in CT images?

-Refer to the figure. What imaging method is displayed in this axial scan of the lower thoracic spine?

When viewing an axial CT image of the spine:

-In CT scans, which improves spatial resolution (visible details in the image)?

-In CT images:

-Cone beam CT has which characteristic?

General Principles of Musculoskeletal Imaging

Radiologic Evaluation, Search Patterns, and Diagnosis

Radiologic Evaluation of Fracture

Magnetic Resonance Imaging

Diagnostic Ultrasound

Radiologic Evaluation of the Cervical Spine

Radiologic Evaluation of the Temporomandibular Joint

Radiologic Evaluation of the Thoracic Spine, Sternum, and Ribs

The Chest Radiograph and Cardiopulmonary Imaging

Radiologic Evaluation of the Lumbosacral Spine and Sacroiliac Joints

Radiologic Evaluation of the Pelvis and Hip

Radiologic Evaluation of the Knee

Radiologic Evaluation of the Ankle and Foot

Radiologic Evaluation of the Shoulder

Radiologic Evaluation of the Elbow

Radiologic Evaluation of the Hand and Wrist

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Exam 4: Computed Tomography

-Refer to the figure. In this image, the arrow points to:

-Musculoskeletal CT scanning is typically done with:

-Windowing (typically expressed in terms of Hounsfield units) refers to the:

-The main advantages of CT lie in:

-What is true of resolution in CT images?

-Refer to the figure. What imaging method is displayed in this axial scan of the lower thoracic spine?

When viewing an axial CT image of the spine:

-In CT scans, which improves spatial resolution (visible details in the image)?

-In CT images:

-Cone beam CT has which characteristic?

General Principles of Musculoskeletal Imaging

Radiologic Evaluation, Search Patterns, and Diagnosis

Radiologic Evaluation of Fracture

Magnetic Resonance Imaging

Diagnostic Ultrasound

Radiologic Evaluation of the Cervical Spine

Radiologic Evaluation of the Temporomandibular Joint

Radiologic Evaluation of the Thoracic Spine, Sternum, and Ribs

The Chest Radiograph and Cardiopulmonary Imaging

Radiologic Evaluation of the Lumbosacral Spine and Sacroiliac Joints

Radiologic Evaluation of the Pelvis and Hip

Radiologic Evaluation of the Knee

Radiologic Evaluation of the Ankle and Foot

Radiologic Evaluation of the Shoulder

Radiologic Evaluation of the Elbow

Radiologic Evaluation of the Hand and Wrist

Filters