Question 1

A visual inspection of a CT unit should be evaluated at least _____ for ACR accreditation programs.

Accepted Answer

A) daily. 
B) weekly. 
C) monthly. 
D) semi-annually. 
A) daily. 
B) weekly. 
C) monthly. 
D) semi-annually. C

Question 2

For a slice thickness of 5 mm or less, the slice thickness should not vary by more than ____ mm.

Accepted Answer

A) 0.5 
B) 1.0 
C) 2.0 
D) 3.0 
A) 0.5 
B) 1.0 
C) 2.0 
D) 3.0 A

Question 3

Section thickness should not vary by more than ____ mm for sections greater than 5 mm.

Accepted Answer

A) ±0.5 
B) ±1.0 
C) ±2.0 
D) ±5.0 
A) ±0.5 
B) ±1.0 
C) ±2.0 
D) ±5.0 B

Question 4

Patient dose values for CT scans should remain within ____ of the manufacturer's specifications.

Accepted Answer

A) ±2% 
B) ±5% 
C) ±10% 
D) ±20% 
A) ±2% 
B) ±5% 
C) ±10% 
D) ±20%

Question 5

The CT number of water should not deviate by more than ____ CT numbers from 0.

Accepted Answer

A) 2 
B) 3 
C) 5 
D) 10 
A) 2 
B) 3 
C) 5 
D) 10

Question 6

For ACR CT accreditation, the Water CT Number and Standard Deviation (Noise) should be evaluated by the CT technologist

Accepted Answer

A) quarterly. 
B) monthly. 
C) weekly. 
D) daily. 
A) quarterly. 
B) monthly. 
C) weekly. 
D) daily.

Question 7

The uniformity of the CT number of water should not vary by more than ____ HU from the center of the phantom to the periphery.

Accepted Answer

A) 2 
B) 3 
C) 5 
D) 10 
A) 2 
B) 3 
C) 5 
D) 10

Question 8

The CTDIᵥₒₗ pass/fail criterion for an adult abdomen is ____ mGy.

Accepted Answer

A) 20 
B) 40 
C) 30 
D) 80 
A) 20 
B) 40 
C) 30 
D) 80

Question 9

The minimum distance between two objects that allows them to be seen as separate and distinct would define what CT imaging parameter?

Accepted Answer

A) Low-contrast resolution 
B) Uniformity 
C) High-contrast resolution 
D) Image noise 
A) Low-contrast resolution 
B) Uniformity 
C) High-contrast resolution 
D) Image noise

Question 10

The laser light field and radiation field should coincide to within ____ mm.

Accepted Answer

A) 0.5 
B) 1.0 
C) 2.0 
D) 5.0 
A) 0.5 
B) 1.0 
C) 2.0 
D) 5.0

A visual inspection of a CT unit should be evaluated at least _____ for ACR accreditation programs.

For a slice thickness of 5 mm or less, the slice thickness should not vary by more than ____ mm.

Section thickness should not vary by more than ____ mm for sections greater than 5 mm.

Patient dose values for CT scans should remain within ____ of the manufacturer's specifications.

The CT number of water should not deviate by more than ____ CT numbers from 0.

For ACR CT accreditation, the Water CT Number and Standard Deviation (Noise) should be evaluated by the CT technologist

The uniformity of the CT number of water should not vary by more than ____ HU from the center of the phantom to the periphery.

The CTDIᵥₒₗ pass/fail criterion for an adult abdomen is ____ mGy.

The minimum distance between two objects that allows them to be seen as separate and distinct would define what CT imaging parameter?

The laser light field and radiation field should coincide to within ____ mm.

Introduction to Quality Management

Quality Management Tools and Procedures

Filmscreen Image Receptors, Darkrooms, and Viewing Conditions

Film Processing

Processor Quality Control

Silver Recovery

Quality Control of X-Ray Generators and Ancillary Radiographic Equipment

Quality Control of Fluoroscopic Equipment

Digital and Advanced Imaging Equipment

Outcomes Assessment of Radiographic Images

Mammographic Quality Standards

Quality Control for Magnetic Resonance Imaging Equipment

Ultrasound Equipment Quality Assurance

Quality Assurance in Nuclear Medicine

Filters

Exam 12: Quality Control in Computed Tomography

A visual inspection of a CT unit should be evaluated at least _____ for ACR accreditation programs.

For a slice thickness of 5 mm or less, the slice thickness should not vary by more than ____ mm.

Section thickness should not vary by more than ____ mm for sections greater than 5 mm.

Patient dose values for CT scans should remain within ____ of the manufacturer's specifications.

The CT number of water should not deviate by more than ____ CT numbers from 0.

For ACR CT accreditation, the Water CT Number and Standard Deviation (Noise) should be evaluated by the CT technologist

The uniformity of the CT number of water should not vary by more than ____ HU from the center of the phantom to the periphery.

The CTDIᵥₒₗ pass/fail criterion for an adult abdomen is ____ mGy.

The minimum distance between two objects that allows them to be seen as separate and distinct would define what CT imaging parameter?

The laser light field and radiation field should coincide to within ____ mm.

Introduction to Quality Management

Quality Management Tools and Procedures

Filmscreen Image Receptors, Darkrooms, and Viewing Conditions

Film Processing

Processor Quality Control

Silver Recovery

Quality Control of X-Ray Generators and Ancillary Radiographic Equipment

Quality Control of Fluoroscopic Equipment

Digital and Advanced Imaging Equipment

Outcomes Assessment of Radiographic Images

Mammographic Quality Standards

Quality Control for Magnetic Resonance Imaging Equipment

Ultrasound Equipment Quality Assurance

Quality Assurance in Nuclear Medicine

Filters