請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/54889完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 鍾孝文(Hsiao-Wen Chung) | |
| dc.contributor.author | Wei-Shuo Su | en |
| dc.contributor.author | 蘇為碩 | zh_TW |
| dc.date.accessioned | 2021-06-16T03:40:47Z | - |
| dc.date.available | 2015-03-16 | |
| dc.date.copyright | 2015-03-16 | |
| dc.date.issued | 2015 | |
| dc.date.submitted | 2015-02-13 | |
| dc.identifier.citation | [1]D. Le Bihan, E. Breton, D. Lallemand, P. Grenier, E. Cabanis, and M. Laval-Jeantet, “MR imaging of intravoxel incoherent motions: application to diffusion and perfu-
sion in neurologic disorders,” Radiology, vol. 161, no. 2, pp. 401–407, 1986. [2] H. C. Thoeny, F. De Keyzer, F. G. Claus, S. Sunaert, and R. Hermans, “Gustatory stimulation changes the apparent diffusion coefficient of salivary glands: Initial experience,” Radiology, vol. 235, no. 2, pp. 629–634, 2005. [3] M. Sumi and T. Nakamura, “Head and neck tumours: combined MRI assessment based on IVIM and TIC analyses for the differentiation of tumors of different histological types,” European Radiology, vol. 24, no. 1, pp. 223–231, 2014. [4] A. Lemke, B. Stieltjes, L. R. Schad, and F. B. Laun, “Toward an optimal distribution of b-values for intravoxel incoherent motion imaging,” Magnetic Resonance Imaging, vol. 29, no. 6, pp. 766–776, 2011. [5] C.-J. Juan, H.-C. Chang, C.-J. Hsueh, H.-S. Liu, Y.-C. Huang, H.-W. Chung, C.-Y. Chen, H.-W. Kao, and G.-S. Huang, “Salivary glands: Echo-planar versus PROPELLER diffusion-weighted mr imaging for assessment of ADCs,” Radiology, vol. 253, no. 1, pp. 144–152, 2009. [6] H. C. Thoeny, F. De Keyzer, C. Boesch, and R. Hermans, “Diffusion-weighted imaging of the parotid gland: Influence of the choice of b-values on the apparent diffusion coefficient value,” Journal of Magnetic Resonance Imaging, vol. 20, no. 5, pp.786–790, 2004. [7] J. G. Pipe, V. G. Farthing, and K. P. Forbes, “Multishot diffusion-weighted FSE using PROPELLER MRI,” Magnetic resonance in medicine, vol. 47, no. 1, pp. 42–52,2002. [8] J. G. Pipe et al., “Motion correction with PROPELLER MRI: application to head motion and free-breathing cardiac imaging,” Magnetic Resonance in Medicine, vol. 42, no. 5, pp. 963–969, 1999. [9] K. Arfanakis, A. A. Tamhane, J. G. Pipe, and M. A. Anastasio, “k-space undersampling in PROPELLER imaging,” Magnetic Resonance in Medicine, vol. 53, no. 3,pp. 675–683, 2005. [10] Y. Chang, J. G. Pipe, J. P. Karis, W. N. Gibbs, N. R. Zwart, and M. Schar, “The effects of SENSE on PROPELLER imaging,” Magnetic Resonance in Medicine, 2014. [11] T.-C. Chuang, H.-H. Huang, H.-C. Chang, and M.-T. Wu, “View-sharing PROPELLER with pixel-based optimal blade selection: Application on dynamic contrast-enhanced imaging,” Medical physics, vol. 41, no. 6, p. 062302, 2014. [12] M. Chou, H. Chung, T. Huang, H. Liu, C. Wang, M. Wu, and C. Chen, “Q-ball imaging with PROPELLER acceleration,” in International Society of Magnetic Resonance in Medicine, 2006. [13] J. J. Van Vaals, M. E. Brummer, W. Thomas Dixon, H. H. Tuithof, H. Engels, R. C. Nelson, B. M. Gerety, J. L. Chezmar, and J. A. Den Boer, ““Keyhole”method for accelerating imaging of contrast agent uptake,” Journal of Magnetic Resonance Imaging, vol. 3, no. 4, pp. 671–675, 1993. [14] H.-C. Chang, C.-J. Juan, H.-C. Chiu, C.-C. Cheng, S.-C. Chiu, Y.-J. Liu, H.-W. Chung, and H.-H. Hsu, “Effects of gender, age, and body mass index on fat contents and apparent diffusion coefficients in healthy parotid glands: an MRI evaluation,” European Radiology, vol. 24, no. 9, pp. 2069–2076, 2014. [15] A. Luciani, A. Vignaud, M. Cavet, J. Tran Van Nhieu, A. Mallat, L. Ruel, A. Laurent, J.-F. Deux, P. Brugieres, and A. Rahmouni, “Liver cirrhosis: Intravoxel incoherent motion MR imaging—pilot study,” Radiology, vol. 249, no. 3, pp. 891–899, 2008. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/54889 | - |
| dc.description.abstract | 多 b 值數據共享式螺旋槳擴散權重磁振影像的可行性將在此論文中被探討。此技術的提出主要將針對螺旋槳式磁振造影取像過程過久之問題進行修正。透過收取不同權重值的槳葉擴散影像並嘗試重建之，影像的取得速度將會依據共享的槳葉數量進行提升。在初步的嘗試中，影像可被成功的重建成高解析度影像，然而k 空間訊號特性將使得這樣的重建方式會於影像上出現假影。假影的詳細成因和降低方法將在本文中被提出。透過此方法，不同擴散能力的組織共存於同一像素內所造成之雙指數訊號衰減將有機會被正確的呈現。 | zh_TW |
| dc.description.abstract | The feasibility of Data Sharing PROPELLER MR imaging with multiple b-values is first proposed and evaluated in this thesis. This technique aims to shorten the amount of time
when acquiring PROPELLER diffusion weighted images. Preliminary result of this thesis demonstrated that it is possible to combine each under-sampled rotating blades encoded with respect to different b-values together to create high resolution images. The combination process is accompanied with some unwanted artifacts due to data discrepancies between central and outer k-space. However, the reason and the possible strategies to reduce its effects are also proposed. The proposed methodology is able to quantitatively measure the signal behavior of bi-exponential decays. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T03:40:47Z (GMT). No. of bitstreams: 1 ntu-104-R01945009-1.pdf: 3213159 bytes, checksum: cf763bd144446ee313db451984f8d991 (MD5) Previous issue date: 2015 | en |
| dc.description.tableofcontents | 1 Introduction 1
2 Data Sharing PROPELLER Imaging 6 2.1 KEYHOLE Reconstruction: Overview . . . . . . . . . . . . . . . . . . . 6 2.2 Data-Sharing PROPELLER Technique . . . . . . . . . . . . . . . . . . . 7 2.3 Data Sharing with Multiple b-Values . . . . . . . . . . . . . . . . . . . . 9 3 Data Sharing PROPELLER with Multiple b-Values: A First Glance 11 3.1 Image Phantom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2 The Ripple-like Artifacts and Erroneous Edges When Combining Blades . 12 3.3 The Level of Concentration of b-Values within a Defined Set . . . . . . . 15 3.4 The Reconstruction of Blades Which Lies at the End of the Running Window 16 3.5 Issues Relating to the Number of Blades Used in One Single Image . . . 17 4 ADC estimations with data sharing PROPELLER with multiple b-values on a bi-exponential signal model 19 4.1 Summaries of the Strategies and the Settings . . . . . . . . . . . . . . . . 20 4.1.1 The Rationale on the Selection of the b-Value Sets . . . . . . . . 20 4.1.2 The Image Phantom . . . . . . . . . . . . . . . . . . . . . . . . 21 4.1.3 The Number of Blades and the Heuristics Taken for Determination of the Outcomes . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.2 Simulation Result: Reconstructed Images . . . . . . . . . . . . . . . . . 23 4.2.1 The Reconstructed Images of Low b-Values . . . . . . . . . . . . 23 4.2.2 The Reconstructed Images of High b-Values . . . . . . . . . . . . 25 4.3 ADC Estimation on the Region of Interest . . . . . . . . . . . . . . . . . 25 4.4 Pixel-by-pixel ADC Estimation . . . . . . . . . . . . . . . . . . . . . . . 27 4.4.1 Noise-free cases for 3 sets of b-values in pixel-by-pixel manner . 28 4.4.2 Noisy cases for 3 sets of b-values in pixel-by-pixel manner . . . . 29 5 Discussions and conclusions 30 5.1 Feasibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5.2 Scan Time Issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5.3 ADC Estimation on Bi-Exponential Signal Model . . . . . . . . . . . . . 31 References 32 | |
| dc.language.iso | en | |
| dc.subject | 資料共享 | zh_TW |
| dc.subject | 磁振造影 | zh_TW |
| dc.subject | KEYHOLE 重建法 | zh_TW |
| dc.subject | 螺旋槳磁振造影 | zh_TW |
| dc.subject | 擴散權重影像 | zh_TW |
| dc.subject | KEYHOLE Reconstructions | en |
| dc.subject | Data Sharing | en |
| dc.subject | Diffusion-Weighted Imaging | en |
| dc.subject | PROPELLER imaging | en |
| dc.subject | Magnetic Resonance Imaging | en |
| dc.title | 資料共享式螺旋槳磁振造影於擴散權重影像之應用：模擬研究 | zh_TW |
| dc.title | Feasibility of data-sharing PROPELLER Diffusion Weighted Image with multiple b-values: a simulation study | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 103-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 莊子肇(Tzu-Chao Chuang),周銘鐘(Ming-Chung Chou),阮春榮(Chun-Jung Juan),蔡炳煇(Ping-Huei Tsai) | |
| dc.subject.keyword | 磁振造影,KEYHOLE 重建法,螺旋槳磁振造影,擴散權重影像,資料共享, | zh_TW |
| dc.subject.keyword | Magnetic Resonance Imaging,KEYHOLE Reconstructions,PROPELLER imaging,Diffusion-Weighted Imaging,Data Sharing, | en |
| dc.relation.page | 34 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2015-02-13 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 生醫電子與資訊學研究所 | zh_TW |
| 顯示於系所單位： | 生醫電子與資訊學研究所 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-104-1.pdf 未授權公開取用 | 3.14 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。