【摘要】：目的通過與增強磁共振血管成像(CE MRA)圖像比較,探討3.0T MR小腿血流敏感散相(FSD)MRA的可行性。方法收集20例可疑下肢動脈疾病患者,行小腿FSD MRA及下肢CE MRA,比較其圖像質(zhì)量;并以CE MRA為診斷標準,判斷FSD MRA的診斷效能。結(jié)果 FSD MRA有效FOV約為(275.93±29.76)mm,圖像質(zhì)量評價觀察者間一致性良好(Kappa=0.81,P0.01)�；谘芄�(jié)段,FSD MRA圖像質(zhì)量評分[(3.66±0.81)分]略優(yōu)于CE MRA[(3.49±0.87)分,P=0.05],可用于診斷的血管節(jié)段數(shù)間兩者差異無統(tǒng)計學(xué)意義[FSD MRA:97.65%(166/170),CEMRA:98.24%(167/170);P=0.32]�；诨颊�,FSD MRA及CE MRA的圖像質(zhì)量差異無統(tǒng)計學(xué)意義[(3.25±1.06)分vs(2.94±1.06)分,P=0.40]。血管狹窄程度評價觀察者間一致性良好(Kappa=0.81,P0.01)�；谘芄�(jié)段,FSD MRA與CE MRA對于血管狹窄程度評價的符合率為84.34%;FSD MRA檢測血管狹窄的敏感度、特異度、陽性預(yù)測值和陰性預(yù)測值分別為96.41%、93.04%、84.06%和98.53%�；诨颊�,FSD MRA與CE MRA評價血管狹窄程度差異無統(tǒng)計學(xué)意義[(3.27±1.10)分vs(3.27±1.10)分,P=1.00]。結(jié)論 FSD應(yīng)用于3.0T MRA可為下肢動脈病變提供一項可靠的非增強MRA檢查方法。
[Abstract]:Objective to investigate the feasibility of 3.0T MR leg blood flow sensitive dispersion (FSD) MRA compared with contrast-enhanced magnetic resonance angiography (CE MRA). Methods 20 patients with suspected lower extremity arterial diseases were treated with leg FSD MRA and lower extremity CE MRA, to compare their image quality, and CE MRA was used as diagnostic standard to judge the diagnostic effectiveness of FSD MRA. Results the effective FOV of FSD MRA was about (275.93 鹵29.76) mm,. The consistency among observers was good (Kappa=0.81,P0.01). The, FSD MRA image quality score based on vascular segment [(3.66 鹵0.81)] was slightly better than that of CEMRA [(3.49 鹵0.87), P 鈮，

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