Flat panel CT
Flat panel computed tomography (FPCT), otherwise, know as flat panel volume tomography are multidetector computed tomography scanners that utilise a large area detector rather than a fixed array of detectors 1,3.
Flat panels have a significantly wider z-axis area coverage that can cover larger areas in one rotation, rather than be limited to the number of detector arrays it is constrained by the size of the flat panel 3.
The spatial resolution of an FPCT is notably higher than that of multidetector CT, making it particularly advantageous in the clinical setting of follow-up investigations of endovascular stents and clipped aneurysms. The contrast resolution is not to the same standard as multidetector CT 2,3.
Multidetector CT is limited to a fixed angle yet, flat panel CT technology has given way to the C-arm bases flat-panel angiography suites, taking advantage of the wide field of view; and the capacity to be utilised at arbitrary angles. 'C-arm spins' can be used to obtain real-time, dynamic information 3.
FPCT is versatile, it can demonstrate real-time fluoroscopy with a high spatial resolution, yet scan times can be longer to achieve an optimal signal to noise ratios 1,3.
- 1. Kalender WA. The use of flat-panel detectors for CT imaging. Radiologe. 2003;43 (5): 379-87. doi:10.1007/s00117-003-0897-4 - Pubmed citation
- 2. Obert M, Ahlemeyer B, Baumgart-Vogt E et-al. Flat-panel volumetric computed tomography: a new method for visualizing fine bone detail in living mice. J Comput Assist Tomogr. 2005;29 (4): 560-5. Pubmed citation
- 3. Gupta R, Cheung AC, Bartling SH et-al. Flat-panel volume CT: fundamental principles, technology, and applications. Radiographics. 2008;28 (7): 2009-22. doi:10.1148/rg.287085004 - Pubmed citation
computed tomography (CT)
- CT technology
- CT image reconstruction
- CT image quality
- CT dose
- CT contrast
- patient-based artifacts
- physics-based artifacts
- hardware-based artifacts
- helical and multichannel artifacts
- windmill artifact
- cone beam effect
- zebra artifact
- stair-step artifact
- CT safety
- history of CT