Clinical micro-CT for dental imaging

Youn, Hanbean; Cho, Min Kook; Shon, Cheol-Soon; Cho, Bong Hae; Kim, Changhyuk; Kim, Ho Kyung

doi:10.1117/12.811533

Cited by 1 publication

(2 citation statements)

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“…In the next few decades, OCT has attracted widespread attentions from biomedical or related field scientists all over the world [12][13][14][15], especially in pathological diagnosis and clinical medicine. Until now, it has shown great application value in ophthalmic [16,17], dental [18][19][20], breast [21][22][23], cardiovascular [24,25], and gastrointestinal diseases [26,27]. Other applications are still under further study.…”

Section: Introductionmentioning

confidence: 99%

“…For example, it is necessary to scan the breast quickly due to safe radiation dose, and only sparse projection data can be obtained [21][22][23]. The complete projection data also cannot be obtained in dental diagnosis due to limited sampling angle [18][19][20]. From the view of mathematics, the problem of reconstructing an image from incomplete data is usually considered as an underdetermined problem.…”

Section: Introductionmentioning

confidence: 99%

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Relaxation Factor Optimization for Common Iterative Algorithms in Optical Computed Tomography

Jiang

Zhang

2017

Mathematical Problems in Engineering

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Optical computed tomography technique has been widely used in pathological diagnosis and clinical medicine. For most of optical computed tomography algorithms, the relaxation factor plays a very important role in the quality of the reconstruction image. In this paper, the optimal relaxation factors of the ART, MART, and SART algorithms for bimodal asymmetrical and three-peak asymmetrical tested images are analyzed and discussed. Furthermore, the reconstructions with Gaussian noise are also considered to evaluate the antinoise ability of the above three algorithms. The numerical simulation results show that the reconstruction errors and the optimal relaxation factors are greatly influenced by the Gaussian noise. This research will provide a good theoretical foundation and reference value for pathological diagnosis, especially for ophthalmic, dental, breast, cardiovascular, and gastrointestinal diseases.

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