請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/58343完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 周呈霙(Chang-Ying Chou) | |
| dc.contributor.author | Hung-Yi Chou | en |
| dc.contributor.author | 周宏屹 | zh_TW |
| dc.date.accessioned | 2021-06-16T08:11:59Z | - |
| dc.date.available | 2014-03-09 | |
| dc.date.copyright | 2014-03-09 | |
| dc.date.issued | 2014 | |
| dc.date.submitted | 2014-02-17 | |
| dc.identifier.citation | Agostinelli, S. et al. 2003.GEANT4—a simulation toolkit.Nucl.Instrum. MethodsA 506: 250–303.
Buvat, I and Castiglioni,I. 2002.Monte Carlo simulations in SPET and PET Q. J. Nucl. Med. 46: 48–61. Beck, A. and M.Teboulle. 2009a. Fast gradient-based algorithms for constrainted total variation image denoising and deblurring problems. Image Processing, IEEE Transaction on. 18:2419-2434. Cutler, D. P., S. R. Cherry, E.J.Hoffman, W.M.Digby and M. E. Phelps. 1992. Design features and performance of a PET system for animal research. The Journal of Nuclear Medcine. 33: 594-604. Chambolle, A. 2004.An algorithm for total variation minimization and applications.Journal of Mathematical Imaging and Vision. 20:89-97. Kao, C.-M., J. S. Souris, S. Cho, B. C. Penney and C.-T. Chen. 2005.Initial performance evaluation of a modular, large-area detector PET scanner for small animal imaging.In “Nuclear Science Symposium Conference Record, 2005 IEEE”.2081-2084. Kao, C.-M., Q. Xie, Y.Dong, L. Wan and C.-T. Chen.2009. A High-Sensitivity Small Animal PET Scanner: Development and Initial Performance Measurements”.Nuclear Science, IEEE Transaction on. 56: 2678-2688. Kao, C.-M. 2008. Windowed image reconstruction for time-of-flight positron tomography.Phys. Med. Bio, 53:3431-3445. Karp, JS.Surti, S.Daube-Witherspoon, ME.Muehllehner, G. 2008. Benefit of time-of-flight in PET: experimental and clinical results. Journal of Nuclear Medicine. 49:462–470. Kyba, C. Wiener, R. Newcomer,F. Van Berg, R.Dressnandt,N. and Karp,J. 2007. Timing measurements from a TOFPET scanner using local PMT triggering. In“Nuclear Science Symposium and Medical ImagingConference record, 2007”.4123–8. LaRoque S, Sidky E, Pan X. 2008.Accurate image reconstruction from few-view and limited-angledata in diraction tomography. JOSA A 25: 1772-1782. Lecomte, R. 2004. Technology challenges in small animal PET imaging. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 527: 157-165. Moses, W and Choong,W-S. 2007. Design studies for a high performance LSO-based ‘demonstration’ time-of-flightPET camera. In “Nuclear Science Symposium and Medical Imaging Conference Record,2007”.M13–161. Moses, W. and Ullisch,M. 2006.Factors influencing timing resolution in a commercial LSO PET camera.IEEE Transaction Nuclear Science. 53 78–85. N. A. Mullani, J. Markham, and M. M. Ter-Pogossian. 1980.Feasibility of time-of-flightreconstruction in positron emission tomography, J Nucl Med, vol. 21, no. 11, pp. 10951097 Persson M, Bone D, Elmqvist H. 2001. Total variation norm for three-dimensional iterative reconstructionin limited view angle tomography. Physics in medicine and biology 46: 853. Prekeges, J. 2009. Principles of Positron Emission Tomography (PET).In “Nuclear medicine instrumentation”,ed. J. Prekeges, 187-261.Jones & Bartlett Publishers. Rudin L, Osher S, Fatemi E. 1992. Nonlinear total variation based noise removal algorithms.Physica D: Nonlinear Phenomena 60: 259-268. Surti, S. Karp, L. Popescu, E. Daube-Witherspoon and M. Werner. 2006.Investigation of time-of-flight benefit for fully 3-D PET.IEEE Trans.Med. Imag. 25: 529–538. Surti, S. Kuhn, A. Werner, M. Perkins, A.Kolthammer, J and Karp, J. 2007. Performance of Philips Gemini TF PET/CTscanner with special consideration for its time-of-flight imaging capabilities. The Journal of Nuclear Medcine.48 471–80. Tai,YC.Laforest, R. 2005. Instrumentation of aspects of animal PET.Annual Reviewof Biomedical Engineering.7:255-285. Velikina J, Leng S, Chen G. 2007.Limited view angle tomographic image reconstruction via totalvariation minimization. In: Proceedings of SPIE. volume 6510, p. 651020. Watanabe, M. H. Okada, K. Shimizu, T. Omura, E. Yoshikawa, T. Kosugi, S. Mori and T. Yamashita. 1997. A high resolution animal PET scanner using compact PS-PMT detectors. Nuclear Science, IEEE Transaction on. 44:1277-1282. Yang J, Yin W, Zhang Y, Wang Y. 2009.A fast algorithm for edge-preserving variational multichannelimage restoration. SIAM Journal on Imaging Sciences 2: 569-592. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/58343 | - |
| dc.description.abstract | Dual-head small-animal positron emission tomography (DHAPET) has characteristics of high detection sensitivity and flexible system configurations. However, the systemgeometry may result in severe parallax errors and undetected events along the trans-axial directions, thus reducing the image quality.With the advancement of detector hardware, time-of-flight (TOF) of photons can be detected, which has demonstrated significant improvement in image quality, and can greatly benefit its use in research studies and clinics. Algorithms like total variation (TV) minimization methods that aim to compensate the effects of data truncation can be employed to reconstruct images with better resolution and quality. In this work, we will numerically compute the DHAPET system response matrix that includes TOF information and propose a TOF-PET reconstructionalgorithm based on TV-minimization. By applying both TOF information and TV minimization in the iterative algorithm, the reconstructed images can be anticipated to have improved quality with better spatial resolution. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T08:11:59Z (GMT). No. of bitstreams: 1 ntu-103-R00631040-1.pdf: 1258523 bytes, checksum: 10acc1cecc95d8fbf5a15115d8705230 (MD5) Previous issue date: 2014 | en |
| dc.description.tableofcontents | 誌謝
Abstract TABLE OF CONTENTS i LIST OF FIGURES iii LIST OF TABLES iv Chapter 1 1 1.1 Background 1 1.2 Frameworks 5 CHAPTER 2 6 2.1 TOF PET and Small Animal PET 6 2.1.1 Positron Emission Tomography 6 2.1.2 Dual-Head Flat-Panel Small Animal PET System 7 2.1.3 Time-of-Flight PET System 9 2.2 Simulation and Reconstruction Algorithms 12 2.2.1 GATE: A Simulation Tool for PET 12 2.2.2 Numerical Methods for PET Image Reconstruction 14 2.2.3 Monte Carlo Simulation 15 2.2.4 Voxel-Based Ray-Tracing Simulation 16 2.2.5 Optimization Algorithm 18 2.2.6 Total Variation Minimization Algorithm 19 Chapter 3 21 3.1 Simulation Flowchart 21 3.2 Instruments 22 3.2.1 System Configuration 22 3.3 Research Methods 23 3.3.1 System Property 23 3.3.2 System Response Matrix 25 3.3.3 Ray-tracing Simulation of TOF-based System Matrix 25 3.3.3 The implement of GPU acceleration 30 3.3.4 Total Variation Algorithm 31 3.3.5 Fast Iterative Shrinkage-Thresholding (FISTA) Algorithm 32 3.3.5 Burring Operator and FISTA De-blurring Model 35 3.3.6 Non-local Means-FISTA (NLM-FISTA) Algorithm 36 CHAPTER 4 38 4.1 Simulation Efficiency of System Response Matrix 38 4.2 Performance of Time-of-Flight 39 4.3 Performance of TV/NLM minimization 43 4.3.1 The performance of TV/NLM- FISTA denoising model 44 4.3.2The performance of TV/NLM FISTA deblurring model 46 CHAPTER 5 49 5.1 Research Summary 49 Reference 50 | |
| dc.language.iso | en | |
| dc.subject | 全域變異數最小化 | zh_TW |
| dc.subject | 正子斷層掃描 | zh_TW |
| dc.subject | 時間飛行信息 | zh_TW |
| dc.subject | Total variation constraint | en |
| dc.subject | Positron emission tomography | en |
| dc.subject | Time-of-flight | en |
| dc.title | 飛行時間信息與全域變異數最小化在雙平板正子攝影系統的應用與分析 | zh_TW |
| dc.title | Time-of-Flight Image Reconstruction for Dual-Head Flat-Panel PET with TV Minimization Constraint | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 102-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蕭穎聰(Ing-Tsung Hsiao),許靖涵(Ching-Han Hsu) | |
| dc.subject.keyword | 正子斷層掃描,時間飛行信息,全域變異數最小化, | zh_TW |
| dc.subject.keyword | Positron emission tomography,Time-of-flight,Total variation constraint, | en |
| dc.relation.page | 52 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2014-02-17 | |
| dc.contributor.author-college | 生物資源暨農學院 | zh_TW |
| dc.contributor.author-dept | 生物產業機電工程學研究所 | zh_TW |
| 顯示於系所單位： | 生物機電工程學系 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-103-1.pdf 未授權公開取用 | 1.23 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。