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目的 :评价Multivane XD技术在肝脏T2WI成像中的价值。方法 :前瞻性收集56例行肝脏MRI检查的患者,其中男性29例,女性27例,其中16例患者合并有肝脏占位性病变。分别采集横断位Multivane XD T2WI和常规T2WI图像,并比较Multivane XD T2WI与常规T2WI图像的综合评分、肝左叶及右叶的信噪比(signal noise ratio,SNR)、肝左叶及右叶的对比噪声比(contrast noise ratio,CNR)、对比度的差异。结果 :Multivane XD T2WI图像的综合评分显著高于常规T2WI[(4.70±0.50)比(2.86±0.80),P<0.001],且肝右叶及左叶的SNR亦均显著高于常规T2WI[右叶(189.84±112.39)比(3.52±70.08),P<0.001;左叶(218.82±136.24)比(28.70±96.97),P<0.001],而二者间的肝右叶及左叶CNR、对比度差异则均无统计学意义[右叶CNR(4.30±51.86)比(3.52±70.08),P=0.447;左叶CNR(24.68±82.61)比(28.67±96.95),P=0.742;对比度(2.94±1.43)比(2.92±1.16),P=0.958]。结论:Multivane XD技术可减轻运动伪影,改善T2WI图像质量。
Objective: To evaluate the value of Multivane XD in liver T2WI imaging. Methods: Fifty-six patients with liver MRI were prospectively enrolled, including 29 males and 27 females. Sixteen of them had liver space-occupying lesions. Multivane XD T2WI and conventional T2WI images were collected respectively. The comprehensive scores of Multivane XD T2WI and conventional T2WI images were compared. The signal-to-noise ratio (SNR) of left lobe and right lobe, Contrast contrast ratio (CNR), contrast difference. Results: The composite score of Multivane XD T2WI was significantly higher than that of T2WI [(4.70 ± 0.50) vs (2.86 ± 0.80), P <0.001], and the SNR of right and left lobe of liver was also significantly higher than that of conventional T2WI (189.84 ± 112.39) vs (3.52 ± 70.08), P <0.001; left lobe (218.82 ± 136.24) vs (28.70 ± 96.97), P <0.001] (CNR 4.30 ± 51.86 vs 3.52 ± 70.08, P = 0.447), the left lobe CNR (24.68 ± 82.61) vs (28.67 ± 96.95), P = 0.742, and the contrast (2.94 ± 1.43) than (2.92 ± 1.16), P = 0.958]. Conclusion: Multivane XD technology can reduce motion artifacts and improve T2WI image quality.