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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 李百祺(Pai-Chi Li) | |
| dc.contributor.author | Teng-Yuan Yeh | en |
| dc.contributor.author | 葉騰遠 | zh_TW |
| dc.date.accessioned | 2021-05-19T17:43:29Z | - |
| dc.date.available | 2023-08-21 | |
| dc.date.available | 2021-05-19T17:43:29Z | - |
| dc.date.copyright | 2018-08-21 | |
| dc.date.issued | 2018 | |
| dc.date.submitted | 2018-08-18 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/7432 | - |
| dc.description.abstract | 血管內超音波系統(Intravascular Ultrasound)因能對血管內腔組織深層進行成像、提供血管硬化病灶長度資訊、且在即時成像等優勢，在臨床應用中有助於正確地評估病情。血管內超音波系統需透過高速旋轉超音波探頭與線性移動機構來實現血管影像，因此需要搭配超音波探頭微小化、旋轉與線性馬達、以及電路旋轉連接器等元件。本論文提出微小化超音波探頭的製程，並嘗試透過結合自製的旋轉移動機構來完成血管內超音波影像系統之原型。本研究使用聚偏二氟乙烯、鈮酸鋰、鈮鎂酸鉛-鈦酸鉛作為壓電材料，並將其固定於軟性電路板載板上。所製作出來的超音波探頭原型尺寸為0.5mm2。在自發自收量測以及頻譜分析中，三種材料的探頭其中心頻率分別落在50、45、34MHz、而相對應的頻寬分別為25、15、17MHz頻寬。最後我們整合超音波探頭、超音波系統與自製之旋轉移動機構，並實際對鎢線仿體進行成像。 | zh_TW |
| dc.description.abstract | Intravascular ultrasound (IVUS) system, which can provide real-time information of vascular tissue, vascular sclerosis and lesion length, is a reliable image modality in clinical assessment. Generally, IVUS consists of a specified ultrasound transducer, rotational/linear motion motors, and the corresponding connector. We proposed a prototype of IVUS system which integrated a specified transducer fabrication for IVUS and a motor drive unit. Three materials, 1) Polyvinylidene Difluoride, 2) Lithium Niobate, and 3) Lead magnesium niobate-lead titanate, were used to fabricate the transducers. The size of the transducers are less than 0.5 mm2, and each transducer were mounted on a flexible printed circuit, and the final size of transducer. The central frequencies/bandwidths of our transducer are 50(25), 45(15), and 34(17)MHz respectively. Finally, the image of tungsten wire was successfully obtained by the prototype of our IVUS system. | en |
| dc.description.provenance | Made available in DSpace on 2021-05-19T17:43:29Z (GMT). No. of bitstreams: 1 ntu-107-R01945035-1.pdf: 3623556 bytes, checksum: b94d86234bc93a7f5365118c44ec1e61 (MD5) Previous issue date: 2018 | en |
| dc.description.tableofcontents | 口試委員會審定書 #
誌謝 i 中文摘要 ii ABSTRACT iii 目錄 iv 圖目錄 vii 表目錄 x Chapter 1 緒論 1 1.1 動脈血管結構 2 1.2 動脈粥狀硬化 3 1.3 心血管疾病診斷檢查 5 1.4 血管內超音波 9 1.5 血管內超音波影像特性 10 1.6 研究動機與目的 11 1.7 論文架構 12 Chapter 2 超音波探頭設計理論 13 2.1 血管內超音波探頭架構 14 2.1.1 壓電材料 14 2.1.2 後方匹配層 16 2.1.3 前方匹配層 17 2.1.4 電極層 18 2.1.5 金屬外殼 18 2.2 超音波探頭效能評估 19 2.2.1 空間解析度 19 2.2.2 景深 20 2.2.3 頻寬 21 2.2.4 嵌入式損失 21 Chapter 3 血管內超音波探頭製作 22 3.1 血管內超音波探頭設計 22 3.1.1 制定探頭規格 22 3.2 血管內超音波探頭製作流程 24 3.2.1 壓電材料前處理與研磨 25 3.2.2 製作後方匹配層 27 3.2.3 晶體切割 28 3.2.4 軟性電路板連接 29 3.2.5 區域性絕緣阻隔與濺鍍電極層 30 3.2.6 製作前方匹配層與封裝 31 Chapter 4 血管內超音波探頭驗證與再設計 32 4.1 血管內超音波探頭量測 32 4.1.1 量測實驗環境架設 32 4.1.2 PVDF型血管內超音波探頭訊號分析 33 4.1.3 LN型血管內超音波探頭訊號分析 35 4.1.4 PMN-PT型血管內超音波探頭分析 37 4.2 血管內超音波探頭製程討論 38 4.3 血管內超音波探頭訊號討論 39 4.4 血管內超音波探頭再設計 40 4.4.1 金屬外殼封裝版本血管內超音波探頭製程流程 41 4.4.2 金屬外殼封裝版本血管內超音波探頭訊號分析 44 Chapter 5 血管內超音波影像系統應用 45 5.1 旋轉移動機構設計 45 5.1.1 經滑環訊號量測分析 47 5.2 鎢線仿體影像量測實驗結果 49 5.3 雜訊量測分析 53 5.4 血管仿體設計及製作 57 Chapter 6 結論與未來工作 58 6.1 結論 58 6.2 未來工作 59 參考文獻 63 | |
| dc.language.iso | zh-TW | |
| dc.title | 血管內超音波探頭製程研究 | zh_TW |
| dc.title | Fabrication Process Development of Intravascular Ultrasound (IVUS) Transducer | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 106-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 劉建宏(Jian-Hung Liu),謝寶育(Bao-Yu Hsieh),葉佳倫(Chia-Lun Yeh) | |
| dc.subject.keyword | 血管內超音波,血管內超音波探頭,鈮鎂酸鉛-鈦酸鉛,聚偏二氟乙烯,鈮酸鋰, | zh_TW |
| dc.subject.keyword | intravascular ultrasound (IVUS),intravascular ultrasound transducer,lead magnesium niobate-lead titanate(PMN-PT),polyvinylidene difluoride(PVDF),lithium niobate, | en |
| dc.relation.page | 66 | |
| dc.identifier.doi | 10.6342/NTU201803994 | |
| dc.rights.note | 同意授權(全球公開) | |
| dc.date.accepted | 2018-08-18 | |
| 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 |
| dc.date.embargo-lift | 2023-08-21 | - |
| 顯示於系所單位： | 生醫電子與資訊學研究所 | |
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