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目的：研究动态增强ＧＤＦＭＰＳＰＧＲ多期扫描在肝癌诊断中的价值和小肝癌的ＭＲＩ表现。材料与方法：３５例ＳＨＣＣ患者进行了前瞻性ＭＲＩ研究，所有病例均行ＳＥ序列及动态增强的ＦＭＰＳＰＧＲ序列多期扫描，并经手术病理证实。结果：３５例３８个病灶，ＭＲＩ共发现３４个病灶。动态增强ＦＭＰＳＰＧＲ序列，病灶于动脉期高、低、等信号分别为２５、３和１个，其中２０例动脉早期明显强化。门脉期高、低、等信号数为２、１０和１７个。延迟期扫描病灶高、低、等信号数分别为４、３和２２个，动态增强ＦＭＰＳＰＧＲ序列对ＳＨＣＣ检出的敏感性和准确性明显优于常规ＳＥ序列（Ｐ＜０．０１）。结论：ＦＭＰＳＰＧＲ序列扫描速度快、图像质量好，配合ＧＤＤＴＰＡ动态增强扫描可动态地观察病灶血供的特点，特别有利于小肝肿瘤的检出和定性。
Objective: To study the value of dynamic enhanced GD FMPSPGR multi-phase scan in the diagnosis of hepatocellular carcinoma and the MRI findings of small hepatocellular carcinoma. Materials and Methods: A prospective MRI study was performed in 35 patients with SHCC. SE sequences and dynamically enhanced FMPSPGR sequences were scanned in all cases and confirmed by pathology. RESULTS: A total of 34 lesions were found on MRI in 35 patients. Dynamically enhanced FMPSPGR sequence, lesions in the arterial phase were high, low, and equal signal were 25, 3 and 1, respectively, of which 20 cases of early arterial enhancement. The high, low, and equal number of signals at the portal stage are 2, 10, and 17. The number of high-, low-, and equal-signal lesions was 4, 3, and 22, respectively. The sensitivity and accuracy of the dynamic enhanced FMPSPGR sequence for SHCC detection was significantly better than that of conventional SE sequences (P<0.01). Conclusion: FMPSPGR sequence scanning speed, image quality is good, with GD - DTPA dynamic enhanced scanning can dynamically observe the characteristics of blood supply to the lesion, and is particularly conducive to the detection and characterization of small liver tumors.