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目的探讨磁共振成像(MRI)化学位移成像技术在肾血管平滑肌脂肪瘤诊断中的临床应用价值。方法回顾性分析12例CT证实和10例手术后病理证实的肾血管平滑肌脂肪瘤的MRI化学位移成像表现。结果目测法,22例肾血管平滑肌脂肪瘤中,16例在反相位信号明显下降,5例病灶在反相位信号无明显下降,但脂肪抑制后信号明显下降,1例病灶在反相位和脂肪抑制序列信号都无明显下降。结论 MRI化学位移成像技术结合MRI脂肪抑制序列对病灶内是否含有脂质、脂肪有极高敏感性,有助于肾血管平滑肌脂肪瘤的诊断和鉴别诊断。
Objective To investigate the clinical value of magnetic resonance imaging (MRI) chemical shift imaging in the diagnosis of renal angiomyolipoma. Methods MRI manifestations of CT angiography were retrospectively analyzed in 12 cases confirmed by CT and 10 cases with pathologically confirmed renal angiomyolipoma. RESULTS: In the visual field test, among the 22 cases of renal angiomyolipoma, 16 cases showed a significant decrease in the antiphase signal, 5 cases showed no significant decrease in the antiphase signal, but a significant decrease in the signal after fat suppression and 1 case in the antiphase And fat suppression sequence signal no significant decline. Conclusions MRI chemical shift imaging combined with MRI fat suppression sequence is highly sensitive to the presence or absence of lipids and fat in the lesion and is helpful for the diagnosis and differential diagnosis of renal angiomyolipoma.