空回肠间质瘤MSCT征象与不同危险度相关性分析  

Correlation Analysis between MSCT Features and Different Risk Levelsof Jejunoileum Stromal Tumor

作　　者：张文 吴文秀 李锋 朱纯生 Zhang Wen;Wu Wenxiu;Li Feng;Zhu Chunsheng(Department of Imaging,Zhuhai Hospital of Integrated Traditional Chinese and Western Medicine,Zhuhai,Guangdong 519000;Department of Imaging,Foshan First People’s Hospital(Foshan Hospital Affiliated to Sun Yat-sen University),Foshan,Guangdong 528000)

机构地区：[1]珠海市中西医结合医院影像科,广东珠海519000 [2]佛山市第一人民医院(中山大学附属佛山医院)影像科,广东佛山528000

出　　处：《现代医用影像学》2021年第2期249-253,共5页Modern Medical Imageology

摘　　要：目的:分析不同病理危险度的空回肠间质瘤的MSCT影像表现,与病理危险度进行对照分析,提高空回肠间质瘤术前危险度评估的准确率。方法:回顾性分析31例经手术病理证实的空回肠间质瘤的临床及影像资料,包括肿瘤的发生年龄、部位、形态、大小、囊实性、生长方式、平扫、增强扫描动脉期、静脉期及延迟期特点。依据病理分级把极低危、低危及中危险度归为中低危组,把高危险度归为高危险组。计数资料进行卡方检验,病变大小、平扫及三期增强CT值进行秩和检验(Mann—Whitney U检验),P<0.05认为具有统计学差异,有意义参数进行ROC曲线分析。结果:31例空回肠间质瘤均为单发病变,极低危险1例,低危险度4例,中危险度4例,高度危险度22例。男性16例,女性15例。病变位于空肠14例,回肠17例。肠腔内生长5例,肠内外跨壁生长6例,肠外生长20例。最小肿瘤大小约1.5cm×1.2cm,最大肿瘤大小约15.3cm×13.5cm。多数密度不均匀(25/31),呈囊实性改变,内部积气(5/31)。空回肠间质瘤大小、囊实性改变、增强扫描动脉期血管样强化及静脉期和/或延迟期CT值差异在两组之间具有统计学差异(P<0.05)。结论:肿瘤大小、病灶增强后动脉期血管样强化、静脉期和/或延迟期CT值差异以及病灶内是否出现囊变、坏死,有助于术前空回肠间质瘤风险度的准确评估,从而可以为患者诊疗方案的制定及预后评估提供参考。Objective:To analyze the MSCT imaging manifestations of jejunoileum stromal tumor at different pathological risk levels,and compare them with the pathological risk levels,so as to improve the preoperative diagnosis rate and risk assessment of primary jejunoileum stromal tumor.Methods:A retrospective analysis of 31 cases confirmed by surgery pathology of jejunoileum stromal tumor of the clinical and imaging data,including age,the tumor location,shape,size,cystic and solid,growth way,scan and enhanced scan,arterial and venous phase and delay characteristic.According to the pathological grading into low-medium-risk and high-risk group.Chi-square test was performed on the counting data,and rank sum test(Mann-Whitney U test)was performed on the lesion size and CT values in different phases.P<0.05 was considered statistically significant,and ROC curve analysis was performed on significant parameters.Results:31 cases of jejunoileum stromal tumor were all single lesion,with 1 case of very low risk,4 cases of low risk,4 cases of medium risk,and 22 cases of high risk.There were 16 males and 15 females.The lesions were located in jejunum in 14 cases and ileum in 17 cases.There were 5 cases of enteral growth,6 cases of enteral and extraintestinal growth and 20 cases of enteral growth.The minimum tumor size was about 1.5 cm×1.2 cm,and the maximum tumor size was about 15.3 cm×13.5 cm.Most of the density is uneven(25/31),showing changes in cystic-solid and internal gas accumulation(5/31).The size of tumor,cystic and solid changes,characteristic arterial hypervascular enhancement pattern on postcontrast CT and CT values in venous and delayed phase were significantly different between the two groups(P<0.05).Conclusion:The size of tumor,characteristicarterial hypervascular enhancement pattern on postcontrast CT,difference of CT values in venous and delayed phase,and whether there is cystic transformation and necrosis in the lesion,help to accurately assess the risk of preoperative jejunoileumstromal tumor,which can Provide refer

关 键 词：空回肠 间质瘤 MSCT 病理危险度 

分 类 号：R735[医药卫生—肿瘤] R730.44[医药卫生—临床医学]