RADT 1075 FINAL EXAM QUESTIONS
AND ANSWERS
The acronym PACS stands for - Answer- Picture Archiving and Communication
System
EMR stands for - Answer- electromagnetic radiation and electronic medical
record.
Gray scale bit depth determines - Answer- the number of gray shades
What is the anticipated file storage in gigabytes necessary for a computed
tomography examination comprised of 2,200 images, each with a 512 x 512 matrix
at 16-bit depth? - Answer- 1.15343 Gb
The service class and object class combine to form a - Answer- SOP unit
"Blooming" is a term that results from the internal process of a monitor rather than
the external light causing reflection off the monitor screen. - Answer- False
What is the anticipated image file size in kilobytes for a computed radiography digital
image comprised of a 2,400 x 2,400 matrix with a 32-bit depth? - Answer- 23,040
Kb
Soft copy display of images refers to - Answer- images displayed via a video
monitor
Medical images that are sent via teleradiology are sent over a - Answer- WAN
A CT scanner and workstation are considered a SOP. - Answer- true
What is the anticipated file storage in gigabytes necessary for a computed
tomography examination comprised of 1,200 images, each with a 512 x 512 matrix
at 32-bit depth? - Answer- 1.258291 Gb
Based upon image file size, the greatest image file size would be created with what
type of diagnostic image? - Answer- digital mammogram
All of the following are advantages to soft-copy display EXCEPT - Answer-
images visualized on film.
,Essential characteristics of a PACS include: 1. distribution and retrieval of digital
images 2. creation of digital images 3. radiation dosage documentation 4. display of
digital images 5. voice-activated dictation 6. digital image storage and long-term
archival - Answer- 1, 4, and 6 only
As a result of film digitizers, - Answer- *Hard copy analog films can be scanned
into digital format
*Digitized images can be placed into a PACS
*Digitized images can be networked with other DICOM images
all of the above
All of the following are advantages to soft-copy display EXCEPT - Answer-
images visualized on film
Production of a grainy, reticulated image that cannot be corrected in digital post-
processing is the result of - Answer- failure to use a high enough mAs setting.
The Health Insurance Portability and Accountability Act of 1996 (HIPAA) intends to -
Answer- protect a patient's medical information from unauthorized usage and
access.
Examples of a biomedical informatics(BMI) platform include - Answer- all of the
above
When a technologist uses the PACS or BMI components, password protection
should be adhered and whenever the technologists leaves, they should always log
out of the system to avoid leaving patient information accessible. - Answer- true
Gray scale bit depth ranges from ____ bits to ____ bits. - Answer- 8;32
What is the anticipated image file size in bytes for a computed radiography digital
image comprised of a 1,000 x 1,000 matrix with an 8-bit depth? - Answer-
1,000,000
When images are sent from a CR workstation to a radiologist viewing station for
interpretation, the workstation and viewing station become a SOP. In this case, -
Answer- the workstation is provider class and the viewing station is user class.
All of the following would be acceptable HIPAA-compliant actions EXCEPT -
Answer- discussing the results of a patient's mammogram with a colleague as you
ride the elevator to lunch.
For how many years do many institutions store radiographic film images? - Answer-
5-7 years
, What is the anticipated image file size in kilobytes for a computed radiography digital
image comprised of a 512 x 512 matrix with a 12-bit depth? - Answer- 393.216
Digital storage of images for a typical large radiology department that does 150,000
examinations per year (including MRI, CT, Nuc Med, etc.) has been estimated at
about ______ terabytes of computer memory per year - Answer- 3.2 terabytes
The ____ includes image storage, image query, image retrieval, image print, storage
resource, and examination. - Answer- service class
The higher the number of pixels, the higher the resolution. - Answer- True.
The adoption of a DICOM standard in the medical imaging industry was designed to
- Answer- allow various vendors to share digital data without proprietary software
constraints.
A/An ____ uses a laser beam that scans in a raster pattern across the film as it is
transported through the digitizer. - Answer- laser film digitizer
A ____ connects all the computers in a system. - Answer- LAN
HIS is known as the industry-standard language in medical imaging. - Answer-
false
Laser printers have which of the following components? - Answer- all of the above
All of the following would be hard-copy display systems EXCEPT - Answer- an
image on display on a flat-panel monitor.
Any computer platform that is designed to deal with medical purposes such as
medical care, medical information, and medical research and documentation would
be classified as a/an - Answer- BMI
Light scattering, light leakage, and electron backscattering are examples of
conditions that will cause - Answer- glare
A particular configuration of informatics devices and processes is known as: -
Answer- platform
The DICOM standard has established two classes of information. They are -
Answer- service class and object class
Which is an advantage to the digital environment over film? - Answer- all of the
above
AND ANSWERS
The acronym PACS stands for - Answer- Picture Archiving and Communication
System
EMR stands for - Answer- electromagnetic radiation and electronic medical
record.
Gray scale bit depth determines - Answer- the number of gray shades
What is the anticipated file storage in gigabytes necessary for a computed
tomography examination comprised of 2,200 images, each with a 512 x 512 matrix
at 16-bit depth? - Answer- 1.15343 Gb
The service class and object class combine to form a - Answer- SOP unit
"Blooming" is a term that results from the internal process of a monitor rather than
the external light causing reflection off the monitor screen. - Answer- False
What is the anticipated image file size in kilobytes for a computed radiography digital
image comprised of a 2,400 x 2,400 matrix with a 32-bit depth? - Answer- 23,040
Kb
Soft copy display of images refers to - Answer- images displayed via a video
monitor
Medical images that are sent via teleradiology are sent over a - Answer- WAN
A CT scanner and workstation are considered a SOP. - Answer- true
What is the anticipated file storage in gigabytes necessary for a computed
tomography examination comprised of 1,200 images, each with a 512 x 512 matrix
at 32-bit depth? - Answer- 1.258291 Gb
Based upon image file size, the greatest image file size would be created with what
type of diagnostic image? - Answer- digital mammogram
All of the following are advantages to soft-copy display EXCEPT - Answer-
images visualized on film.
,Essential characteristics of a PACS include: 1. distribution and retrieval of digital
images 2. creation of digital images 3. radiation dosage documentation 4. display of
digital images 5. voice-activated dictation 6. digital image storage and long-term
archival - Answer- 1, 4, and 6 only
As a result of film digitizers, - Answer- *Hard copy analog films can be scanned
into digital format
*Digitized images can be placed into a PACS
*Digitized images can be networked with other DICOM images
all of the above
All of the following are advantages to soft-copy display EXCEPT - Answer-
images visualized on film
Production of a grainy, reticulated image that cannot be corrected in digital post-
processing is the result of - Answer- failure to use a high enough mAs setting.
The Health Insurance Portability and Accountability Act of 1996 (HIPAA) intends to -
Answer- protect a patient's medical information from unauthorized usage and
access.
Examples of a biomedical informatics(BMI) platform include - Answer- all of the
above
When a technologist uses the PACS or BMI components, password protection
should be adhered and whenever the technologists leaves, they should always log
out of the system to avoid leaving patient information accessible. - Answer- true
Gray scale bit depth ranges from ____ bits to ____ bits. - Answer- 8;32
What is the anticipated image file size in bytes for a computed radiography digital
image comprised of a 1,000 x 1,000 matrix with an 8-bit depth? - Answer-
1,000,000
When images are sent from a CR workstation to a radiologist viewing station for
interpretation, the workstation and viewing station become a SOP. In this case, -
Answer- the workstation is provider class and the viewing station is user class.
All of the following would be acceptable HIPAA-compliant actions EXCEPT -
Answer- discussing the results of a patient's mammogram with a colleague as you
ride the elevator to lunch.
For how many years do many institutions store radiographic film images? - Answer-
5-7 years
, What is the anticipated image file size in kilobytes for a computed radiography digital
image comprised of a 512 x 512 matrix with a 12-bit depth? - Answer- 393.216
Digital storage of images for a typical large radiology department that does 150,000
examinations per year (including MRI, CT, Nuc Med, etc.) has been estimated at
about ______ terabytes of computer memory per year - Answer- 3.2 terabytes
The ____ includes image storage, image query, image retrieval, image print, storage
resource, and examination. - Answer- service class
The higher the number of pixels, the higher the resolution. - Answer- True.
The adoption of a DICOM standard in the medical imaging industry was designed to
- Answer- allow various vendors to share digital data without proprietary software
constraints.
A/An ____ uses a laser beam that scans in a raster pattern across the film as it is
transported through the digitizer. - Answer- laser film digitizer
A ____ connects all the computers in a system. - Answer- LAN
HIS is known as the industry-standard language in medical imaging. - Answer-
false
Laser printers have which of the following components? - Answer- all of the above
All of the following would be hard-copy display systems EXCEPT - Answer- an
image on display on a flat-panel monitor.
Any computer platform that is designed to deal with medical purposes such as
medical care, medical information, and medical research and documentation would
be classified as a/an - Answer- BMI
Light scattering, light leakage, and electron backscattering are examples of
conditions that will cause - Answer- glare
A particular configuration of informatics devices and processes is known as: -
Answer- platform
The DICOM standard has established two classes of information. They are -
Answer- service class and object class
Which is an advantage to the digital environment over film? - Answer- all of the
above
