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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 張瑞峰(Ruey-Feng Chang) | |
dc.contributor.author | Yen-Po Chen | en |
dc.contributor.author | 陳晏波 | zh_TW |
dc.date.accessioned | 2021-06-16T17:26:11Z | - |
dc.date.available | 2020-03-11 | |
dc.date.copyright | 2020-03-11 | |
dc.date.issued | 2020 | |
dc.date.submitted | 2020-03-09 | |
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Chiu, 'Letter to the Editor: Variances in Sagittal Femoral Shaft Bowing in Patients Undergoing TKA,' Clinical Orthopaedics and Related Research, vol. 466, pp. 1008-1009, 02/08 11/13/received 01/22/accepted 2008. [41] Z. Bao, L. Qiao, J. Qin, J. Xu, S. Zhou, D. Chen, et al., 'The assessment of femoral shaft morphology in the sagittal plane in Chinese patients with osteoarthritis—a radiographic analysis,' Journal of Orthopaedic Surgery and Research, vol. 12, p. 127, 08/30 05/21/received 08/14/accepted 2017. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/64005 | - |
dc.description.abstract | 臨床研究發現現今使用之骨髓內釘與患者的股骨前曲半徑不匹配,但現有各研究結果間有相當差異,且研究對象多為西方人,因此本研究針對國人股骨之股骨前曲半徑測量做深入的探討,並設計一電腦測量程式,使用區域生長領域法之演算法來找出股骨平面X光影像中股骨橫斷面之中心點及骨髓內腔之中心點,再以此計算出股骨前曲半徑。測量結果再與其他研究結果及市場上現有之骨髓內釘之曲率做比較。本研究之實驗樣本來自於衛生福利部台北醫院之影像資料庫,由2014年1月至8月中所儲存之股骨平面X光影像中隨機挑選男性5例及女性5例進行分析測量。每例分別對股骨外徑及骨髓內腔(內徑)各進行三次測量。總共240個測量結果的變異係數為 0.007至0.295,平均為 0.088。整段股骨、股骨近端(proximal)、股骨骨幹(shaft)以及股骨遠端(distal)之曲率半徑測量結果平均分別為 1318 mm, 752 mm, 1379 mm, 及 599 mm,這支持了東方人與西方人股骨曲率不同的猜想。整段股骨、股骨骨幹 (shaft)以及股骨近端(proximal)部份之曲率半徑外徑與內徑相當。但在股骨遠端(distal)部份,股骨外徑的曲率半徑(452 mm)比骨髓內腔 (746 mm) 為小 (p < 0.05)。比較整段股骨時,女性比男性的股骨要直,即曲率半徑比較大 (1435 mm 比 1201 mm, p < 0.05)。測量結果顯示股骨曲率半徑比目前所用的骨髓內釘的曲率半徑皆為小,也證實了我們所懐疑的不匹配的問題。進一步的研究將可藉由此一方向,研發與國人較匹配的骨髓內釘等醫療器材造福國人。 | zh_TW |
dc.description.abstract | Mismatch of intramedullary nails with the bowing of femur is a frequent clinical finding. Previous studies showed inconsistent results and focused on Caucasians. We present an algorithm of region growing territory method to get the radii of the anterior bowing of femur. We tested it on ten radiographs. Plain radiographs of the lateral view of femur from five men and five women taken between January and August 2014 in Taipei Hospital, MOHW were chosen randomly. The curvature of femur outline and medullary canal were measured for three times each. Radii of curvature of whole femur, proximal, middle and distal parts were calculated and analyzed. The results showed the average radii of curvature of the whole, proximal, middle, and distal femur were 1318 mm, 752 mm, 1379 mm, and 599 mm, respectively, support the impression that different bowing conditions existed for Asians as compared to Caucasians. At the distal part of the femur, the radius of curvature of the femur outline (452 mm) was smaller than the medullary canal (746 mm) (p < 0.05) while there was no significant difference in the other three parts. Women’s femur was straighter than men’s when we compared the whole length (1435 mm vs. 1201 mm, p < 0.05). The radii we calculated were smaller than the current intramedullary nails, so the results also indicate the mismatch of current instruments to the curvature of femur. The results showed that the inter-observer and intra-observer differences are acceptable. The coefficient of variation of the 240 measurements ranged from 0.007 to 0.295 and averaged 0.088. We might be able to try to build a valuable data base as a reference for the manufactories in building and manufacturing the new intramedullary nails which are especially for our citizens in the future. By this way, we wish we are able to accomplish the goal of having a better outcome of the related surgery and make a better healing and rehabilitation progress for the patients in our country. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T17:26:11Z (GMT). No. of bitstreams: 1 ntu-109-D96922027-1.pdf: 2605081 bytes, checksum: 625ca5cc318817fa81b04cf81bbb3337 (MD5) Previous issue date: 2020 | en |
dc.description.tableofcontents | Acknowledgements i
中文摘要 ii Abstract iii Contents v List of Figures viii List of Tables xi Chapter 1 Introduction 1 Chapter 2 Review of Related Works and Literatures 6 2.1 Introduction 6 2.2 Intramedullary Nailing 6 2.3 Mismatch of the Sagittal Bowing of Femur and the Intramedullary Nail 14 2.4 Calculation of Curvature of the Intramedullary Canal of the Femur Bone 15 2.5 Results and Comparison of the Various Studies of the Radius of Femur 21 2.6 Conclusion 25 Chapter 3 Measurement of the Sagittal Bowing of Femur 27 3.1 Introduction 27 3.2 Materials 28 3.2.1 Patient Information 28 3.2.2 Image Retriving 28 3.3 Method 30 3.3.1 Initial Image Processing 30 3.3.2 Territory Occupying Algorithm (Territory Method) 34 3.3.3 Calculation of the Curvature of the Radius 36 3.4 Whole Image Segmentation and Data Output 39 3.5 Conclusion 42 Chapter 4 The Experiment and the Results 44 4.1 Introduction 44 4.2 Radiograph Images Selection 45 4.3 Image Segmentation and the Results 46 4.4 The Differences of the Different Parts of Femur 48 4.5 The Differences Between Both Genders 49 4.6 Conclusion 50 Chapter 5 Discussion 51 5.1 Introduction 51 5.2 Comparison With Previous Studies 51 5.3 Related Clinical Strategy for the Mismatchment 55 5.4 Feature of Our Software 56 5.5 Conclusion 57 Chapter 6 Conclusion and Future Directions 59 6.1 Conclusion 59 6.2 Future Directions 59 References 61 Appendix A: IRB Application Forms and IRB Approval 65 Appendix B: Raw Data of the Experiment 77 | |
dc.language.iso | en | |
dc.title | 由平面X光影像以電腦進行股骨前曲測量之新方法 | zh_TW |
dc.title | New Computerized Method in Measuring the Sagittal Bowing of Femur from Plain Radiograph | en |
dc.type | Thesis | |
dc.date.schoolyear | 108-2 | |
dc.description.degree | 博士 | |
dc.contributor.oralexamcommittee | 傅偢善(Chiou-Shann Fuh),范守仁(Shou-Zen Fan),陳鴻豪(Hong-Hao Chen),廖振焜(Chen-Kun Liaw) | |
dc.subject.keyword | 股骨前曲,股骨,電腦測量,曲率不匹配,區域生長領域法, | zh_TW |
dc.subject.keyword | anterior bow of femur,femur,computerized measurement,mismatch,region growing territory method, | en |
dc.relation.page | 81 | |
dc.identifier.doi | 10.6342/NTU202000676 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2020-03-09 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 資訊工程學研究所 | zh_TW |
顯示於系所單位: | 資訊工程學系 |
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