摘要
目的 分析3.0T磁共振成像在肝癌患者分期诊断中的临床应用价值.方法 回顾性分析2021年3月至2022年3月医院收治的76例肝癌患者的临床资料,均经术后病理检查确诊,术前均实施 3.0T磁共振成像检查.以术后病理结果为金标准,统计 3.0T磁共振成像对肝癌患者分期和分型的诊断准确度,并分析其诊断结果与金标准的一致性,同时比较不同b值下患者病灶肝区和正常肝区的表观弥散系数(ADC).结果 3.0T磁共振成像诊断结果显示,T1、T2、T3、T4a、T4b期的肝癌患者数量分别为 29、19、18、6、4 例,诊断准确度为86.84％,与术后病理结果具有极高的一致性(Kappa=0.912,P=0.000);块状型肝癌、结节性肝癌、小肝癌、弥漫型肝癌的患者数量分别为27、25、17、7例,诊断准确度为88.16％,与术后病理结果具有极高的一致性(Kappa=0.903,P=0.000).当b为300、800 s/mm2 时,病灶肝区的ADC小于正常肝区,差异有统计学意义(P<0.05).结论 3.0T磁共振成像可准确诊断肝癌分期、分型,诊断结果与术后病理结果的一致性极高,可为临床诊治疾病提供参考依据.
Abstract
Objective To analyze the clinical application value of 3.0T magnetic resonance imaging in the staging diagnosis of liver cancer patients.Methods With the retrospective analysis of clinical data of 76 liver cancer patients admitted to the hospital from March 2021 to March 2022,all patients were diagnosed through postoperative pathological examination and underwent 3.0T magnetic resonance imaging before surgery.With postoperative pathological results as the gold standard,the diagnostic accuracy of 3.0T magnetic resonance imaging in staging and classification of liver cancer patients was statistically analyzed,and the consistency of its diagnostic results with the gold standard was analyzed.In addition,the apparent diffusion coefficient(ADC)of the lesion liver area and the normal liver area in patients with different b values were compared.Results The diagnostic results of 3.0T magnetic resonance imaging showed that there were 29,19,18,6,and 4 patients with liver cancer in stages T1,T2,T3,T4a,and T4b,respectively,with a diagnostic accuracy of 86.84％,which was consistent with the postoperative pathological results(Kappa=0.912,P=0.000);The number of patients with blocky liver cancer,nodular liver cancer,small liver cancer,and diffuse liver cancer was 27,25,17,and 7,respectively,with a diagnostic accuracy of 88.16％,which was consistent with postoperative pathological results(Kappa=0.903,P=0.000).When b=300 s/mm2 and b=800 s/mm2,the ADC in the lesion liver area was smaller than that in the normal liver area,and the difference was statistically significant(P<0.05).Conclusion 3.0T magnetic resonance imaging can accurately diagnose the staging and classification of liver cancer,and the diagnostic results are highly consistent with postoperative pathological results,which can provide reference for clinical diagnosis and treatment of diseases.
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