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Flat panel CT versus multidetector CT in skull base imaging: are there differences in image quality?
Maximilian Schulze1,2, Bernhard Hirt3, Katrin Reimann4,5
1Department of Neuroradiology, University of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany. maximilian.schulze@uk-gm.de.
Background:
Purpose of this study was to compare image quality of the skull base in standard 20s protocol flat panel computed tomography (FPCT) with the new time and dose improved 10s protocol as well as with 128 slice multidetector computed tomography (MDCT).
Methods:
10 whole skull preparations were scanned with either 128 slice MDCT(SOMATOM Definition AS+, Siemens, Erlangen) or FPCT (AXIOM-Artis, Siemens, Erlangen) using 10s or 20s protocol.
Results:
FPCT provides significantly better image quality and improved delimitation of clinically relevant structures in the anterior, temporal and posterior skull base compared to 128 slice MDCT. The 20s FPCT protocol yielded best delimitability of evaluated skull base structures. However, the shorter, dose saving 10s FPCT protocol was still significantly superior to 128 slice MDCT regarding delimitability of skull base structures and additionally showed no significant inferiority compared with the 20s FPCT protocol.
Conclusions:
The 10s FPCT protocol yields a significantly better image quality at a comparable radiation dose exposure in imaging skull base structures compared to MDCT.
Trial Registration:
371/2017BO2.
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