Abstract:
:Little is known regarding differences between model-based iterative reconstruction (MBIR) and hybrid iterative reconstruction (HIR) in temporal bone computed tomography (CT). This study compared the ability to depict microstructures in temporal bone in quarter-detector CT (QDCT) between MBIR and HIR.Sixty-two temporal bones in 31 consecutive adult patients who underwent QDCT were included. Reconstruction was performed with Forward projected model-based Iterative Reconstruction SoluTion (FIRST) BONE mild mode and Adaptive Iterative Dose Reduction 3D (AIDR3D) enhanced mild mode. Imaging quality was graded for 3 microstructures (spiral osseous lamina, tympanic membrane, and singular canal).Spiral osseous lamina was significantly well-delineated in the AIDR3D enhanced group, compared with the FIRST group. In nearly all cases with FIRST, spiral osseous lamina was poorly defined. Although there was no significant difference, depiction of the tympanic membrane and singular canal tended to be better with AIDR3D enhanced mode.Routine reconstruction for preoperative temporal bone CT should be performed with HIR, rather than MBIR.
journal_name
Medicine (Baltimore)journal_title
Medicineauthors
Kurokawa R,Maeda E,Mori H,Amemiya S,Sato J,Ino K,Torigoe R,Abe Odoi
10.1097/MD.0000000000015991subject
Has Abstractpub_date
2019-06-01 00:00:00pages
e15991issue
24eissn
0025-7974issn
1536-5964pii
00005792-201906140-00035journal_volume
98pub_type
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