ALL >> Health >> View Article
Tomosynthesis
Tomosynthesis is a method for producing images of slices through the body using a general radiographic X-ray system with a direct digital radiography detector. This is accomplished by obtaining a large number of image acquisitions across a range of projection angles of the X-ray tube. Currently, tomosynthesis is an optional add-on for suitable DR systems. The additional software controls the movement of the X-ray tube and the reconstruction of the images.
One of the disadvantages of planar imaging is that organs and structures overlying the region of interest are superimposed on the image, which can make interpretation more difficult. Tomosynthesis overcomes this by reducing the visibility of superimposed anatomical clutter in the image.
As the availability of digital flat panels increase, tomosynthesis is becoming a more practical option. A number of clinical applications of tomosynthesis have been described. These applications have been through early evaluation, though still in the optimization stage, and have yet to progress to full clinical trials.
Tomosynthesis images are produced by equipment used ...
... to acquire planar images.
Tomosynthesis acquires a series of planar images at different projection angles to produce image slices of the body. Tomography is a forerunner to tomosynthesis and so is explained here to help to understand tomosynthesis.
As with planar X-ray imaging, tomography uses the differences in attenuation between the tissues to form an image. However, while planar imaging acquires an image with the X-ray source and detector stationary, tomography uses a moving detector and source. They move with the center of rotation in the focal plane.
Information above and below the focal plane is blurred out in the resulting image. Therefore, the image contains predominantly information in the focal plane.
While tomography produces an image of a single slice through an object, tomosynthesis can produce many slices at different depths, from a single set of image acquisitions.
The acquisitions of discrete exposures, at different angles, as opposed to one long exposure in tomography, allows for the reconstruction parameters to be altered, in order to reconstruct slices with different focal planes .The maximum number of slices which can be reconstructed is limited by the number of discrete images acquired. Tomosynthesis produces images much like tomography, but the images are set at different cut heights as opposed to a single image.
Modern digital RF equipment with flat panel detector can be operated in tomosynthesis mode. In order for a flat panel detector system to undertake Tomosynthesis, it requires the following :
- Control of the smooth movement of the X-ray tube, at the required speed
- Rapid pulsing generator
- Modern fast flat-panel detector
There are significant advantages from an economic point of view for tomosynthesis as there is a reduction in the numbers of patients having CT, MRI or nuclear medicine scans.
Tomosythesis has advantages over the planar X-ray in the following applications:
- Chest imaging
- Mammography
- Orthopedics
- Brachytherapy
- Dental imaging
- Nephrology
MedWOW.com is an international used medical equipment and parts trading site. The site offers info about x-ray Tomosynthesis & other medical procedures.
Add Comment
Health Articles
1. Lose Weight In One Month: Achieve Your Fitness Goals With The Right Exercise And Diet PlanAuthor: taherraita
2. Detached Retina Treatment In London: Symptoms, Causes, And Advanced Surgical Solutions
Author: Mahi Muqit
3. How Root Canal Therapy Saves Teeth And Prevents Pain?
Author: Mayur
4. Understanding Modifiers 26 And Tc In Healthcare Billing: A Quick Guide
Author: Albert brown
5. Parkinson’s Disease Drug Pipeline Analysis 2024 – Trends, Key Market Dynamics, And Emerging Therapies
Author: DHRUV
6. A Comprehensive Guide To Finding The Best Fat Removal Surgery In Hyderabad
Author: Ojas Aesthetics
7. Dental Fillers In Coimbatore
Author: We Dental
8. Dental Implant Clinic In Noida – Nayar Dental
Author: Nayar Dental
9. Registered Ndis Provider Melbourne – Caring Hearts Home Care
Author: CARING HEARTS HOME CARE
10. Trusted Migraine Treatment Doctor In Bhubaneswar: Relief & Care
Author: Dr PR bhuyan
11. Analytical Science: Revolutionizing Research And Industrial Applications
Author: Gaia Science Pte Ltd
12. Dental Implants In Coimbatore | We Dental
Author: Shaad Aesthetics
13. Comprehensive Eye Care In Tucson: Essential Services For Lasting Vision Health
Author: Catalina Eye Care
14. When Should Food Sensitivity Testing Be Used?
Author: naturalweightlossflorida
15. Porcelain Veneers: The Secret To A Hollywood Smile In Dallas And Lewisville
Author: Alex Perry