MRI of gastric carcinoma:Results of T and N-staging in an in vitro study

来源 :World Journal of Gastroenterology | 被引量 : 0次 | 上传用户:soaringroc
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
AIM:To determine the accuracy of 1.5-T magnetic resonance imaging (MRI) in the evaluation of gastric wall invasion and perigastric lymph node metastasis in gastric adenocarcinoma.METHODS: Twenty resected gastric specimens containing 20 tumors were studied with a 1.5-T MR system using a commercial head surface coil. MR scanning was performed with a T1 weighted image (TR/TE = 500/20), and a T2 weighted image (TR/TE=2500/90). MR findings were compared with pathologic findings.RESULTS: A T1-weighted image demonstrated three layers in the normal gastric wall. All of the gastric tumors were well demonstrated by lesions and location. In a MRI findings of gastric wall invasion, there was 1 case of T1, 7 of T2, 11 of T3. Pathologic results of resected specimens included 3 cases of pT1, 4 of pT2, and 12 of pT3. The accuracy of T staging with MRI was 74% (14 of 19). MRI findings of lymph node me-tastasis included 6 cases of N0, 13 cases of N1. The accuracy of the N staging with MRI was 47% (9 of 19).CONCLUSION: MRI has a high diagnostic accuracy in the evaluation of the T staging of gastric cancer in vitro and thus potentially enables preoperative histo-pathologic staging. AIM: To determine the accuracy of 1.5-T magnetic resonance imaging (MRI) in the evaluation of gastric wall invasion and perigastric lymph node metastasis in gastric adenocarcinoma. METHODS: Twenty resected gastric specimens containing 20 tumors were studied with a 1.5-T MR system MR TRs were performed with a T1 weighted image (TR / TE = 500/20), and a T2 weighted image (TR / TE = 2500/90). MR findings were compared with pathologic findings. : A T1-weighted image demonstrated three layers in the normal gastric wall. All of the gastric tumors were well demonstrated by lesions and location. In a MRI findings of gastric wall invasion, there was 1 case of T1, 7 of T2, 11 of T3. Pathologic results of resected specimens included 3 cases of pT1, 4 of pT2, and 12 of pT3. The accuracy of T staging with MRI was 74% (14 of 19). MRI findings of lymph node me-tastasis included 6 cases of N0, 13 cases of N1. The accuracy of the N staging with MRI was 47% (9 of 19). CONCLUSION: MRI has a high diagnostic accuracy in the evaluation of the T staging of gastric cancer in vitro and able to enable preoperative histo-pathologic staging.
其他文献
键盘是电脑中被人“指指点点”最多的设备,它在受敲打的同时,也沾上了灰尘与脏东西。如果运气好,夏天的冷雪糕,冬天的热咖啡,也有它的份。 为了让你键盘永葆青春,就要定期清
The traditional holidays in our house when Iwas a child were spent timing elaborate mealsaround football games.My father tried to makepleasant chitchat and eat
徐显明徐显明,男,一九五七年四月出生,山东莱西人。全国人大常委会委员、全国人大法律委员会委员,山东大学校长、中国法学会副会长、中国法理学研究会会长中国的历史告诉我们
介孔沸石最近成为催化材料研究领域的热点课题,这主要是由于它集合了介孔材料以及微孔沸石的优点.早期的介孔沸石合成方法主要是使用后处理,包括水热处理、酸处理或者碱处理.
美国爱荷华州的一座无名小镇因诞生了罕见的七胞胎而颇引媒介关注,他们正在父母、亲友和志愿者的精心呵护下健康成长。 Anonymous towns in Iowa are quite concerned about
An English family werereturning home afterworking for some time in a city on theMediterranean coast.They had a cat,which they could not take with themand which
Itis cold,so bitter cold on this darkwinter day in 1942.But it is nodifferent from any other day in thisNazi concentration camp.I standshivering in my thin rag
Young Alexander was the son of aking.He lived a prince’s life in hisfather’s great palace.He wore richclothes and ate fine foods.He had hisown teacher and al
随着莎氏戏剧的重获亲睐,新的灵感出现了:用莎氏戏剧培训公司经理们,让他们从中学到经营之道。感到意外吗?请看本文是如何解说的。 With the return of Shakespeare’s pla
作为路面施工专家的张斌,既要思考路面如何施工,更要考虑人生之路如何施工。  世间本没路,修的人多了,也就有了路。替地球格式化,为天下人民修路,这是多么伟大的工作呀!作为中国中铁五局普通的一员,每每想到自己参与建设完成一个个项目、一条条康庄大道,那份豪迈与骄傲便会写在脸上。作为中铁五局机械化公司路面项目部经理的张斌,加入到中国中铁五局建设大军之中,他觉得自豪,选择没有错。  扎根西北当先锋  201