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頁籤選單縮合
題名 | 三維飛躍時間技術掃描磁振血管造影之最大強度投射影像盲點:案例報告=Blind Spot of 3D-TOF MRA MIP Image: Case Report |
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作者姓名(中文) | 王健名; 洪嘉亨; 林宇旌; 范志明; 陳凱錡; | 書刊名 | 臺灣應用輻射與同位素雜誌 |
卷期 | 8:2 2012.06[民101.06] |
頁次 | 頁283-287 |
分類號 | 414.93 |
關鍵詞 | 磁振血管造影; 三維飛躍時間技術掃描; 最大強度投射; Magnetic resonance angiography; Three dimensional time of flight; Maximum intensity projection; |
語文 | 中文(Chinese) |
中文摘要 | 本研究為利用 MRI 飛躍時間技術掃描 TOF (Time of Fly)與利用 MIP (Maximum Intensity Projection)技術做出不同切面的威利氏環(Circle of Willis)週遭血管之立體相關位置,不過因為掃描的範圍的限制下可能導致讓診斷出錯誤的結果。一位 45 歲男性,疑似有基底動脈中風(vertebral basilar ischemia),利用一組威利氏環血管的 3D-TOF MRA之 MIP 影像以及一組使用對比劑(Contrast Median)的頸總動脈 CCA (Common Carotid Artery)血管磁振造影,再掃描一組 T2 加權(T2 weight)影像。結果掃描出來後 3D-TOF MRA 之 MIP 顯示出左邊 VA 有嚴重狹窄(stenosis),注射顯影劑後的 CCA 影像,因為掃描範圍較廣,可以明顯的指出是右邊 VA 接近基底動脈那段才是嚴重狹窄近乎阻塞。因此要觀察腦內血管影像就必須把 3D-TOF MRA 之 MIP 影像與原始影像(row data)、CCA 影像一起加入診斷參考,這樣就可以大幅降低誤判的結果。 |
英文摘要 | This study used MRI technology, TOF (Time of Fly) and MIP (Maximum Intensity Projection) to show the different aspects of the 3D (three-dimensional) position-related of blood vessels around the Willie’s Cycle. But because of the scanning range limitation, it may lead to incorrect diagnosis results. A 45-year-old male, suspected of basilar artery stroke (vertebral basilar ischemia), he accepted the exam, MIP image from 3D-TOF MRA (Magnetic Resonance Angiography) of Willie’s Cycle, MIP image from 3D contrast-enhanced MRA of CCA (Common Carotid Artery) and T2 (T2 weight) image, The MIP image from 3D-TOF MRA of Willie’s Cycle shows severe stenosis on the left side VA (vertebral Artery), the MIP image from 3D contrast-enhanced MRA of CCA was because of the broader scanning range, it obviously indicated that the right side VA near the basilar was serious narrow and almost total occlusion. Therefore, the survey of the brain vascular must consider the MIP image from 3D-TOF MRA of Willie’s Cycle, row data image and MIP image from 3D contrast-enhanced MRA of CCA, and that you can significantly reduce misdiagnosis. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。