PMID- 27022608
OWN - NLM
STAT- MEDLINE
DCOM- 20161213
LR  - 20181113
IS  - 2314-6141 (Electronic)
IS  - 2314-6133 (Print)
VI  - 2016
DP  - 2016
TI  - X-Ray Scatter Correction on Soft Tissue Images for Portable Cone Beam CT.
PG  - 3262795
LID - 10.1155/2016/3262795 [doi]
LID - 3262795
AB  - Soft tissue images from portable cone beam computed tomography (CBCT) scanners 
      can be used for diagnosis and detection of tumor, cancer, intracerebral 
      hemorrhage, and so forth. Due to large field of view, X-ray scattering which is 
      the main cause of artifacts degrades image quality, such as cupping artifacts, CT 
      number inaccuracy, and low contrast, especially on soft tissue images. In this 
      work, we propose the X-ray scatter correction method for improving soft tissue 
      images. The X-ray scatter correction scheme to estimate X-ray scatter signals is 
      based on the deconvolution technique using the maximum likelihood estimation 
      maximization (MLEM) method. The scatter kernels are obtained by simulating the 
      PMMA sheet on the Monte Carlo simulation (MCS) software. In the experiment, we 
      used the QRM phantom to quantitatively compare with fan-beam CT (FBCT) data in 
      terms of CT number values, contrast to noise ratio, cupping artifacts, and low 
      contrast detectability. Moreover, the PH3 angiography phantom was also used to 
      mimic human soft tissues in the brain. The reconstructed images with our proposed 
      scatter correction show significant improvement on image quality. Thus the 
      proposed scatter correction technique has high potential to detect soft tissues 
      in the brain.
FAU - Aootaphao, Sorapong
AU  - Aootaphao S
AD  - X-Ray CT and Medical Imaging Laboratory, National Electronics and Computer 
      Technology Center, National Science and Technology Development Agency, 112 
      Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum 
      Thani 12120, Thailand.
FAU - Thongvigitmanee, Saowapak S
AU  - Thongvigitmanee SS
AD  - X-Ray CT and Medical Imaging Laboratory, National Electronics and Computer 
      Technology Center, National Science and Technology Development Agency, 112 
      Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum 
      Thani 12120, Thailand.
FAU - Rajruangrabin, Jartuwat
AU  - Rajruangrabin J
AD  - X-Ray CT and Medical Imaging Laboratory, National Electronics and Computer 
      Technology Center, National Science and Technology Development Agency, 112 
      Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum 
      Thani 12120, Thailand.
FAU - Thanasupsombat, Chalinee
AU  - Thanasupsombat C
AD  - X-Ray CT and Medical Imaging Laboratory, National Electronics and Computer 
      Technology Center, National Science and Technology Development Agency, 112 
      Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum 
      Thani 12120, Thailand.
FAU - Srivongsa, Tanapon
AU  - Srivongsa T
AD  - X-Ray CT and Medical Imaging Laboratory, National Electronics and Computer 
      Technology Center, National Science and Technology Development Agency, 112 
      Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum 
      Thani 12120, Thailand.
FAU - Thajchayapong, Pairash
AU  - Thajchayapong P
AD  - National Science and Technology Development Agency, 111 Thailand Science Park, 
      Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20160216
PL  - United States
TA  - Biomed Res Int
JT  - BioMed research international
JID - 101600173
SB  - IM
MH  - Brain/*diagnostic imaging
MH  - Cone-Beam Computed Tomography/instrumentation/*methods
MH  - Humans
MH  - Image Processing, Computer-Assisted/*methods
MH  - *Models, Theoretical
MH  - Phantoms, Imaging
MH  - Signal-To-Noise Ratio
MH  - X-Ray Diffraction/*methods
PMC - PMC4771887
EDAT- 2016/03/30 06:00
MHDA- 2016/12/15 06:00
PMCR- 2016/02/16
CRDT- 2016/03/30 06:00
PHST- 2015/09/11 00:00 [received]
PHST- 2016/01/15 00:00 [revised]
PHST- 2016/01/17 00:00 [accepted]
PHST- 2016/03/30 06:00 [entrez]
PHST- 2016/03/30 06:00 [pubmed]
PHST- 2016/12/15 06:00 [medline]
PHST- 2016/02/16 00:00 [pmc-release]
AID - 10.1155/2016/3262795 [doi]
PST - ppublish
SO  - Biomed Res Int. 2016;2016:3262795. doi: 10.1155/2016/3262795. Epub 2016 Feb 16.