中国CT和MRI杂志
中國CT和MRI雜誌
중국CT화MRI잡지
CHINESE JOURNAL OF CT AND MRI
2014年
8期
83-85
,共3页
王同兴%徐辉%赵萌%殷信道
王同興%徐輝%趙萌%慇信道
왕동흥%서휘%조맹%은신도
肿瘤%肾母细胞瘤%断层摄影%X线计算机,多层螺旋CT
腫瘤%腎母細胞瘤%斷層攝影%X線計算機,多層螺鏇CT
종류%신모세포류%단층섭영%X선계산궤,다층라선CT
Child%Carcinoma%Nephroblastoma%Tomography%X-ray computed%MSCT
目的:探讨儿童肾母细胞瘤的MSCT表现特点,以期提高影像诊断准确率。方法回顾性分析45例经手术及病理证实为肾母细胞瘤的患儿资料,男23例,女22例,最小年儿童肾母细胞瘤多见于4岁以下儿童,最小年龄为3个月,最大年龄为11岁,平均2.9岁;采用Philips Brilliance 16,先予平扫,再使用2ml/kg造影剂欧乃派克静脉团注后立即扫描,并行多平面重建(MPR)及最大密度投影(MIP)重建。结果全部为密度不均匀肿块,单侧多见,上极多于下极,肿瘤不均匀强化,常伴坏死、出血,少数有钙化;残存肾呈新月形强化为典型CT表现,肿块可跨过中线,但不包绕腹膜后大血管;腹膜后、膈脚后淋巴结转移最多见。MPR、MIP重建可清晰显示血管受累情况。结论儿童肾母细胞瘤多见于4岁以下儿童, MSCT表现有一定的特点,肿瘤呈不均匀强化,残存肾呈新月形强化为其典型表现,有助于本病的诊断。
目的:探討兒童腎母細胞瘤的MSCT錶現特點,以期提高影像診斷準確率。方法迴顧性分析45例經手術及病理證實為腎母細胞瘤的患兒資料,男23例,女22例,最小年兒童腎母細胞瘤多見于4歲以下兒童,最小年齡為3箇月,最大年齡為11歲,平均2.9歲;採用Philips Brilliance 16,先予平掃,再使用2ml/kg造影劑歐迺派剋靜脈糰註後立即掃描,併行多平麵重建(MPR)及最大密度投影(MIP)重建。結果全部為密度不均勻腫塊,單側多見,上極多于下極,腫瘤不均勻彊化,常伴壞死、齣血,少數有鈣化;殘存腎呈新月形彊化為典型CT錶現,腫塊可跨過中線,但不包繞腹膜後大血管;腹膜後、膈腳後淋巴結轉移最多見。MPR、MIP重建可清晰顯示血管受纍情況。結論兒童腎母細胞瘤多見于4歲以下兒童, MSCT錶現有一定的特點,腫瘤呈不均勻彊化,殘存腎呈新月形彊化為其典型錶現,有助于本病的診斷。
목적:탐토인동신모세포류적MSCT표현특점,이기제고영상진단준학솔。방법회고성분석45례경수술급병리증실위신모세포류적환인자료,남23례,녀22례,최소년인동신모세포류다견우4세이하인동,최소년령위3개월,최대년령위11세,평균2.9세;채용Philips Brilliance 16,선여평소,재사용2ml/kg조영제구내파극정맥단주후립즉소묘,병행다평면중건(MPR)급최대밀도투영(MIP)중건。결과전부위밀도불균균종괴,단측다견,상겁다우하겁,종류불균균강화,상반배사、출혈,소수유개화;잔존신정신월형강화위전형CT표현,종괴가과과중선,단불포요복막후대혈관;복막후、격각후림파결전이최다견。MPR、MIP중건가청석현시혈관수루정황。결론인동신모세포류다견우4세이하인동, MSCT표현유일정적특점,종류정불균균강화,잔존신정신월형강화위기전형표현,유조우본병적진단。
Objective To analyze the MSCT features of nephroblastoma (Wilms' tumor), and to improve the diagnostic accuracy of nephroblastoma. Methods Imaging studies of 45 patients with proven nephroblastoma by surgery and histopathology were reviewed, including 22 females and 23 male, and the mean age was 2.9 years old. The Philips Brilliance 16-slice CT was used with the following acquisition parameters: 5-mm slice thickness, and 5-mm slice interval. Enhanced scanning was performed after high-pressure injection of 2ml/kg (300 mg/ml) non-ionic contrast agent. The images were reprocessed by multiplanar reformation (MPR) and maximum density projection (MIP) reconstruction. Results All lesions in our study presented masses of heterogeneous density. Most tumors were unilatera. There were more tumors appear in the upper pole of kidney than that in the lower pole. The masses showed uneven enhancement, often with necrosis, hemorrhage and cystic changes, and few tumors had calcification. Typical radiographic findings in patients with nephroblastoma were that the remaining kidney presented crescent-shaped enhancement. Most masses crossed the body center line, but none crossed around the main blood vessel in retroperitoneum. The metastatic lymph nodes were mostly seen in retroperitoneal or posterior to diaphragmatic crus. The performance of the vascular involvement was displayed clearly through MPR and MIP reconstruction. Conclusion The nephroblastoma often occur in children under the age of four. The manifestations of nephroblastoma in MSCT had certain characteristics. The masses could have uneven enhancement and the presence of crescent-shaped enhancement can be contribute to the diagnosis of nephroblastoma.