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Sunday, December 4, 2016

WHAT IS THE SYSTEM OF CT SCAN ?


INPUT SYSTEM:
   
     Input component of CT scan is  gantry. The patient is placed inside the gantry that contains several x-ray tubes and detector. The gantry will rotate around patient and the ray from the x-ray tube will penetrate through patient’s body and the rays will be collected by the detectors. The rays collected will be converted into data (in electrical signal) and transferred to the computer. The gantry will rotate several times to produce complete 3-dimensional views. A complete scan produces a complete data set that contains sufficient information for the reconstruction of an image. 

Gantry rotates around patient

OUTPUT SYSTEM:


Output system include hardware and software. Computer is the main hardware that is used in CT imaging system. The computer is used to display the CT images and situated at the workstation that have operator’s console. 

There are 3 consoles at the workstation that are used to operates the imaging system by:

1.   the technologist, 

2.   for post processing filming 

3.   for viewing and manipulating images by the physician. 



The software in the computer allows the operator to program the scan sequence, display scan images, edit, and measures the image, enter patient data, and send and receive images from storage.

 CT image formation consist 3 steps:

 1. Scanning phase 
·  in the input system where the patient is scan by using gantry thus produce data.
 2. image reconstruction phase
·  the data/raw data is produced.
 3. image display. 
·   the image is display on the computer’s monitor.
·          black and white or colour.

                 Images displayed at monitor


The software that used for communications of data or images between CT scan to other devices is known as DICOM (Digital Imaging and Communications in Medicine). It uses in variety of medical appliances such MRI, Ultrasound, and CT scan. DICOM allows the transferring text data and images to workstations, printers, display monitors in the department. DICOM can operates with Picture Archiving and Communications System (PACS). PACS allow the CT images to be send to other workstations in other department such in intensive care unit to view the images at the same time. 







12 comments:

Unknown said...
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Unknown said...

such a good information. Thanks for the sharing.

HY said...

Great information. *thumbs up*

Unknown said...
This comment has been removed by the author.
Unknown said...

what are the advantages of using ict in the process of using CT Scan?

Unknown said...
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Unknown said...

1)Improving patient care by increasing services as Picture Archiving and Communication System (PACS) helps store those images and reports in one system
2)Decreasing lost or misplaced film because PACS will automatically store the information in the system. There is no need of hard copies anymore
3)Decreasing the time taken to diagnose and treat a patient. With the help of ICT, data can be transferred immediately which may prevent death in certain cases.
4)Protect sensitive information. DICOM (Digital Imaging and Communications in Medicine) can protect those sensitive data.

HY said...
This comment has been removed by the author.
HY said...

What type of imaging plane that used in ct scan?

Unknown said...

coronel plane, sagittal plane & transverse plane

Unknown said...

Thank you for all the review :)

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