Equipment Components

Question 1

Process of concerting raw projection data (attenuation measurements) obtained during data-acquisition into a cross-sectional digital image

Answer 1

Image Reconstruction

Question 2

Equipment Components in Image Reconstruction

Answer 2

1. Hardware and software
2. Hard Disk
3. Computer components
   a. CPU
   b. Computer memory

Question 3

Physical elements of a computer or electronic system

Answer 3

Hardware

Question 4

Has 4 main categories: Input devices, output devices, secondary storage devices and internal components

Answer 4

Hardware

Question 5

Tangible

Answer 5

Hardware

Question 6

Developed using electronic and other materials

Answer 6

Hardware

Question 7

When damaged, it can be replaced with a new component

Answer 7

Hardware

Question 8

Starts functioning once the software is loaded into the system

Answer 8

Hardware

Question 9

A collection of instructions that tell the computer how to perform a task

Answer 9

Software

Question 10

Mainly divided into a system software and application software

Answer 10

Software

Question 11

Intangible

Answer 11

Software

Question 12

Developed by writing instruction using a programming language

Answer 12

Software

Question 13

When damaged, it can be reinstalled using a programming language

Answer 13

Software

Question 14

Should be installed into the computer to function

Answer 14

Software

Question 15

A data storage device found inside the CT computer system

Answer 15

Hard disk/ Hard drive

Question 16

Stores all the digital information used and produced during CT operations (similar to how your computer saves files and programs)

Answer 16

Hard disk/ Hard drive

Question 17

Stores raw projection data (attenuation measurements) and image data after reconstruction

Answer 17

Data Storage, Hard disk (Function)

Question 18

Provides fast access to raw data so that the computer can perform mathematical calculations for image reconstruction

Answer 18

Image Reconstruction Support, Hard disk (Function)

Question 19

Keeps the operating system, scanning protocols, and image processing software used by the CT system

Answer 19

Program and Software Storage, Hard disk (Function)

Question 20

Allows retrieval of patient studies for review, post-processing or reformatting

Answer 20

Archiving and Retrieval, Hard disk (Function)

Question 21

Sends reconstructed images to other systems like PACS or external drives for permanent record keeping

Answer 21

Data Transfer, Hard disk (Function)

Question 22

Hard Disk Functions

Answer 22

1. Data storage
2. Image reconstruction support
3. Program and software storage
4. Archiving and retrieval
5. Data transfer

Question 23

Brain of the CT computer system

Answer 23

CPU

Question 24

Performs all the mathematical and logical operations required to process data collected from the detectors and produce CT images

Answer 24

CPU

Question 25

Part of the hardware inside the CT computer that controls, manages, and coordinates the system's overall operation

Answer 25

CPU

Question 26

Directs how the XRT, detectors, and table operate based on user-selected scan parameters

Answer 26

Controls the CT system, CPU (Functions)

Question 27

Performs complex calculations (eg attenuation coefficient computations) required to reconstruct images

Answer 27

Process raw data, CPU (Functions)

Question 28

Applies mathematical methods such as FBP or Iterative Reconstruction to conver raw data into usable images

Answer 28

Runs reconstruction algorithms, CPU (Functions)

Question 29

Runs the CT's operating system and scan control software

Answer 29

Executes software programs, CPU (Functions)

Question 30

Connects with the display monitor, storage devices, and PACS for image viewing and archiving

Answer 30

Manages communication, CPU (Functions)

Question 31

Monitors the status and performance of the CT components during scanning

Answer 31

Quality control and system monitoring, CPU (Functions)

Question 32

Part of the CT computer system that stores data and instructions needed for scanning, processing, and displaying images

Answer 32

Computer Memory

Question 33

Diff types of Computer Memory

Answer 33

1. ROM (Read-Only Memory) 2. RAM (Random Access Memory) 3. WORM (Write Once, Read Many)

Question 34

Stores permanent instructions that operate the CT system

Answer 34

ROM (Read-Only Memory)

Question 35

Contains the manufacturer-installed programs such as the CT's casic operating instructions, boot-up routines, and calibration data

Answer 35

ROM (Read-Only Memory)

Question 36

Cannot be changed or erased by the user

Answer 36

ROM (Read-Only Memory)

Question 37

Also called temporary or working memory

Answer 37

RAM (Random Access Memory)

Question 38

Used during scanning and image reconstruction to store raw data, processing commands, and temporary calculations

Answer 38

RAM (Random Access Memory)

Question 39

Data is lost when the system is turned off

Answer 39

RAM (Random Access Memory)

Question 40

The more the system has this, the faster it can reconstruct images

Answer 40

RAM (Random Access Memory)

Question 41

A permanent storage medium used for archiving pt data and images

Answer 41

WORM (Write Once, Read Many)

Question 42

Once information is written, it cannot be erased or altered (ensuring data integrity and legal protection)

Answer 42

WORM (Write Once, Read Many)

Question 43

Commonly used for long-term storage of CT images in medical records

Answer 43

WORM (Write Once, Read Many)