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  3. .博碩士學位論文
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  5. 利用磁振造影評估以重建膠原蛋白模板與高含量血小板血漿植入後膝關節半月板軟骨之再生─兔子動物實驗模型
 
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利用磁振造影評估以重建膠原蛋白模板與高含量血小板血漿植入後膝關節半月板軟骨之再生─兔子動物實驗模型

Other Title
Magnetic Resonance Imaging Correlated with Histological Evaluation of Meniscal Regeneration Using Collagen-Platelet Rich Plasma
in Knee Joints of Rabbits
Type
thesis
Date Issued
2007-07-11
Author(s)
林明芳
Advisor
賴文福
Subjects
系所名稱:生物醫學材料研究所
Description
學位別:碩士
語文別:中文
指導教授:賴文福
共同指導教授:陳榮邦
口試委員:鄧文炳;郭宗甫;蘇正堯
中文關鍵字:膠原蛋白模板;纖維化;膝關節;半月板;磁振造影;組織再生
Abstract
中文題目:利用磁振造影評估以重建膠原蛋白模板與高含量血小板血漿植入後膝關節半月板軟骨之再生-兔子動物實驗模型

以膠原蛋白模板促進膝關節半月板之再生已成功研發,另外高含量血小板血漿PRP(platlet-rich plasma)內含生長因子的生物材料亦已應用於臨床,本實驗為前測試驗,其目的是結合上述兩種材料特性,經由動物實驗以手術植入受損之半月板,利用非侵入性磁振造影(MRI)與組織切片對照觀察半月板的再生過程。
本實驗包含8隻紐西蘭母白兔(約3個月大小,重約3公斤),分為3組:
A組:半月板切除術合併高含量血小板血漿PRP和重建膠原蛋白模板之混合物種植(共5隻兔、右膝)
B組:半月板切除術(共3隻兔、右膝)
C組:正常半月板(利用A組兩隻兔之左膝)
MRI使用1.5-T儀及3-in之表面線圖,成像技術包括T1-, PD-, T2-加強影像及注射對比劑(Gadopentate dimeglumine)後的T1-加強影像。我們將固定以右膝關節的外側半月板中央區軟骨做為MRI影像,於手術前(0週、A1-5、B1-3),術後第4(A1、B1)、8(A2、B2)、12週(A3、B3)及24週(A4、A5)為MRI觀察期,隨即進行撲殺做組織切片。對照切片顯示組織之再生過程發現:MRI影像呈現高訊號表示組織再生不良,切片顯示有纖維母細胞增生現象。相反地,MRI影像呈現低訊號表示組織再生良好,切片結果顯示與原組織呈現相同染色。本實驗初步發現,手術後植入混合膠原蛋白與PRP生物材料,三個月後,其組織再生情況明顯優於未植入上述生物材料者,但再生組織之重塑(tissue remodeling)需要至6個月或更長的時間觀察。
URI
https://203.71.86.71/handle/123456789/11994
https://hdl.handle.net/11296/xw626j
File(s)
No Thumbnail Available
Name

C0183445.pdf

Size

7.6 MB

Format

Adobe PDF

Checksum

(MD5):31f39658abfa16b5dbe345d0637fefd4

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