3D reconstruction based on compressed-sensing (CS)-based framework by using a dental panoramic detector.
In this work, we propose a practical method that can combine the two functionalities of dental panoramic and cone-beam CT (CBCT) features in one by using a single panoramic detector. We implemented a CS-based reconstruction algorithm for the proposed method and performed a systematic simulation to demonstrate its viability for 3D dental X-ray imaging. We successfully reconstructed volumetric images of considerably high accuracy by using a panoramic detector having an active area of 198.4 mm × 6.4 mm and evaluated the reconstruction quality as a function of the pitch (p) and the angle step (Δθ). Our simulation results indicate that the CS-based reconstruction almost completely recovered the phantom structures, as in CBCT, for p≤2.0 and θ≤6°, indicating that it seems very promising for accurate image reconstruction even for large-pitch and few-view data. We expect the proposed method to be applicable to developing a cost-effective, volumetric dental X-ray imaging system.
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
U K
UK
Je
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
H M
HM
Cho
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
D K
DK
Hong
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea. Electronic address: hscho1@yonsei.ac.kr.
H S
HS
Cho
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
Y O
YO
Park
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
C K
CK
Park
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
K S
KS
Kim
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
H W
HW
Lim
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
G A
GA
Kim
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
S Y
SY
Park
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
T H
TH
Woo
Department of Radiation Convergence Engineering, iTOMO Research Group, Yonsei University, Wonju 220-710, Republic of Korea.
S I
SI
Cho
D000465:Algorithms; D003198:Computer Simulation; D054893:Cone-Beam Computed Tomography / Q000379:methods*; D003362:Cost-Benefit Analysis; D044962:Data Compression; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008962:Models, Theoretical; D009055:Mouth / Q000000981:diagnostic imaging*; D019047:Phantoms, Imaging; D011857:Radiographic Image Interpretation, Computer-Assisted; D011861:Radiography, Dental / Q000379:methods*; D015203:Reproducibility of Results; D014070:Tooth / Q000000981:diagnostic imaging; D014965:X-Rays
Compressed-sensing; Dental panoramic detector; Spiral scan; Zigzag scan