頁籤選單縮合
題 名 | Technological Progress in Ultrasonography=超音波技術的新進展 |
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作 者 | 周宜宏; | 書刊名 | 臺灣醫學會雜誌 |
卷 期 | 98:11 1999.11[民88.11] |
頁 次 | 頁749-756 |
分類號 | 415.12 |
關鍵詞 | 超音波技術; Ultrasound; Doppler; Contrast agent; |
語 文 | 英文(English) |
英文摘要 | Technical progress in ultrasonography (US) is especially rapid now, due to continuing advances in transducer design, signal processing techniques, and Doppler technology. A number of important technical breakthroughs have been made in the past decade. Among these, multidimensional array transducers, harmonic imaging, miniaturized transducers, extended field-of-view imaging, handcarried ultrasound units, three-dimensional (3-D) US, and ultrasound contrast agentsare the most remarkable innovations. Improved spatial and contrast resolution allows delineation of anatomic details and increases diagnostic accuracy and confidence. Miniaturized transducers can be used to image tiny or superficial structures in the human body, and can guide the surgeon to the problem site. Extended field-of-view imaging provides a larger field for demonstration of pathology in certain anatomic locations. Hand-carried US units are used widely in a physician's office or in remote areas, and bring high-quality medical imaging to the bedside. 3-D US has already shown significant benefits in perinatology; with further improvements in real-time imaging technology, 3-D US will emerge as an important adjunct to conventional 2-D US. In conjunction with harmonic imaging technology and Doppler technology, US contrast agents allow more powerful anatomic and functional evaluation of human organs. They may also play important therapeutic roles in the near future. Advancing computer technology is expected to lead to more important breakthroughs in the next 5 to 10 years. |
本系統中英文摘要資訊取自各篇刊載內容。