- 期刊
平行成像技術於磁振攝影之應用與限制
The Application and Limitation of Parallel Imaging Technique Used for Magnetic Resonance Imaging
摘要
平行成像技術(parallel imaging)，可藉由降低填K空間(k-space)的次數，在不影響影像解析度的前提下縮短整體造影的時間，本文的主要目的在於應用此一技術，藉由使用不同加速困子的方式，分別對假體以及自願者進行測試，並評估在磁振造影中，平行成像技術(Parallel imaging)對訊號雜訊比(signal-noise ratio)及整體影像品質(imaging quality)的影響，以及在臨床應用上的價值。結果顯示隨著加速因子的增加，整體影像品質以及訊號雜訊比皆受到不同程度的影響，因此我們認爲適度的選擇加速因子，方能在減少造影時問同時仍能維持一定的影像品質。
並列摘要
Parallel imaging technique (PIT) is a method that can significantly decrease the scanning time by reducing the number of filling K-space and still maintains the imaging quality. The purpose of this study is to apply PIT under various accelerating factors and evaluate the influence of PIT on the signal-noise ratio (SNR) and imaging quality. The result showed that with increasing accelerating factors, the SNR and imaging quality had been influenced to different levels. Therefore, while applying PIT, the accelerating factors need to be appropriately adjusted so that the scanning time can be shortened without deteriorating the imaging quality.
延伸閱讀
- Lin, C. H., O'Neill, C., 李國維, Lee), K. W., & Lee, M. C. (2005). 小波失真壓縮之磁振影像的主觀與客觀判定法研究. The Changhua Journal of Medicine, 10(3), 145-157. https://www.airitilibrary.com/Article/Detail?DocID=16801504-200507-10-3-145-157-a
- 周信甫（2014）。偏振全像繞射特性研究及其在體積全像資訊儲存之應用〔碩士論文，國立交通大學〕。華藝線上圖書館。https://doi.org/10.6842/NCTU.2014.00251
- Chao, Y. P. (2009). 高夾角解析度擴散磁振造影神經徑路追蹤之發展與應用 [doctoral dissertation, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2009.02102
- 戴川義（2011）。The study of optical imaging technique on biological tissues〔碩士論文，國立臺灣師範大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0021-1610201315255055
- Sharma, R., Seo, J. W., & Kwon, S. (2014). In Vivo Imaging of Nitric Oxide by Magnetic Resonance Imaging Techniques. Journal of Nanomaterials, 2014(), 558-570-266. https://doi.org/10.1155/2014/523646