暨南大学学报(自然科学与医学版)
暨南大學學報(自然科學與醫學版)
기남대학학보(자연과학여의학판)
JOURNAL OF JINAN UNIVERSITY(NATURAL SCIENCE & MEDICINE EDITION)
2015年
3期
261-265
,共5页
王欣璐%韩立新%尹吉林%王成%姜丽莎%谭思婷%王伟民
王訢璐%韓立新%尹吉林%王成%薑麗莎%譚思婷%王偉民
왕흔로%한립신%윤길림%왕성%강려사%담사정%왕위민
脑肿瘤%11 碳 -蛋氨酸%18氟 -脱氧葡萄糖%正电子断层显像
腦腫瘤%11 碳 -蛋氨痠%18氟 -脫氧葡萄糖%正電子斷層顯像
뇌종류%11 탄 -단안산%18불 -탈양포도당%정전자단층현상
brain tumours%carbon-11 methionine%fluorine-18 fluorodeoxyglucose%positron emission tomography
目的:鉴于11碳-蛋氨酸(11 C-Methionine,MET)在良性病变和在低级别胶质瘤鉴别诊断价值的研究尚少,本研究目的是筛选出术前用11 C-MET 和18氟-脱氧葡萄糖(18 F-FDG)两种显像剂进行脑正电子断层显像(PET/CT)成像对良性和低级别胶质瘤(共22例)进行回顾性研究,评价两种显像剂分别对上述两种病变的显示能力,病变边界勾画情况以及鉴别诊断价值,为11 C -蛋氨酸在脑内良恶性病变的诊断提供依据.方法:本研究包括脑内占位病变22例(其中良性病变5例,新发低级别胶质瘤 WHO I 级和 II 级共17例).每例外科手术或活检前均行18 F-FDG和11 C-MET PET 扫描(两次扫描间隔时间在1周以内),根据病灶及正常对照区(大脑对侧相应正常区域)勾画出的感兴趣区(region of interest,ROI)进行标准摄取值(Standard uptake value,SUV)平均值测量,计算良性及低级别胶质瘤的肿瘤/非瘤比(tumor/normal brain uptake ratio,T/NT 比值)的平均值及标准差.对比两种显像剂在上述两组病变中 T/N 比值的差别并进行统计学分析.结果:(1)11 C-MET 在良性病变和低级别胶质瘤中的 T/NT 比值分别是1.59±0.28和1.52±0.48,组间差别无统计学意义(P >0.05);18 F-FDG 在良性病变和低级别胶质瘤中的 T/NT 比值分别是0.91±0.48和0.77±0.65,组间差别无统计学意义(P >0.05).(2)在本组所有22例病变中,11 C-MET 显示病变呈高代谢者19例,18 F-FDG 显示病变呈低代谢者17例.(3)11 C-MET 所示病灶边界清晰者17例,18 F-FDG 对病灶边界显示清晰者仅2例.(4)17例病灶显示清晰的患者11 C-MET 显示病变范围均大于18 F-FDG.结论:虽然11 C-MET 和18 F-FDG 两种显像剂均无法将良性病变与低级别胶质瘤区分开,但11 C-MET 对病灶侵犯范围及边界的显示均明显优于18 F-FDG FDG,11 C-MET 还可检测和随访低级别胶质瘤(即惰性肿瘤)的生长情况,可为临床提供更多诊断、预后及治疗信息,因此,11 C-MET 可常规应用于脑内占位病变的显示,且其效果优于18 F-FDG.
目的:鑒于11碳-蛋氨痠(11 C-Methionine,MET)在良性病變和在低級彆膠質瘤鑒彆診斷價值的研究尚少,本研究目的是篩選齣術前用11 C-MET 和18氟-脫氧葡萄糖(18 F-FDG)兩種顯像劑進行腦正電子斷層顯像(PET/CT)成像對良性和低級彆膠質瘤(共22例)進行迴顧性研究,評價兩種顯像劑分彆對上述兩種病變的顯示能力,病變邊界勾畫情況以及鑒彆診斷價值,為11 C -蛋氨痠在腦內良噁性病變的診斷提供依據.方法:本研究包括腦內佔位病變22例(其中良性病變5例,新髮低級彆膠質瘤 WHO I 級和 II 級共17例).每例外科手術或活檢前均行18 F-FDG和11 C-MET PET 掃描(兩次掃描間隔時間在1週以內),根據病竈及正常對照區(大腦對側相應正常區域)勾畫齣的感興趣區(region of interest,ROI)進行標準攝取值(Standard uptake value,SUV)平均值測量,計算良性及低級彆膠質瘤的腫瘤/非瘤比(tumor/normal brain uptake ratio,T/NT 比值)的平均值及標準差.對比兩種顯像劑在上述兩組病變中 T/N 比值的差彆併進行統計學分析.結果:(1)11 C-MET 在良性病變和低級彆膠質瘤中的 T/NT 比值分彆是1.59±0.28和1.52±0.48,組間差彆無統計學意義(P >0.05);18 F-FDG 在良性病變和低級彆膠質瘤中的 T/NT 比值分彆是0.91±0.48和0.77±0.65,組間差彆無統計學意義(P >0.05).(2)在本組所有22例病變中,11 C-MET 顯示病變呈高代謝者19例,18 F-FDG 顯示病變呈低代謝者17例.(3)11 C-MET 所示病竈邊界清晰者17例,18 F-FDG 對病竈邊界顯示清晰者僅2例.(4)17例病竈顯示清晰的患者11 C-MET 顯示病變範圍均大于18 F-FDG.結論:雖然11 C-MET 和18 F-FDG 兩種顯像劑均無法將良性病變與低級彆膠質瘤區分開,但11 C-MET 對病竈侵犯範圍及邊界的顯示均明顯優于18 F-FDG FDG,11 C-MET 還可檢測和隨訪低級彆膠質瘤(即惰性腫瘤)的生長情況,可為臨床提供更多診斷、預後及治療信息,因此,11 C-MET 可常規應用于腦內佔位病變的顯示,且其效果優于18 F-FDG.
목적:감우11탄-단안산(11 C-Methionine,MET)재량성병변화재저급별효질류감별진단개치적연구상소,본연구목적시사선출술전용11 C-MET 화18불-탈양포도당(18 F-FDG)량충현상제진행뇌정전자단층현상(PET/CT)성상대량성화저급별효질류(공22례)진행회고성연구,평개량충현상제분별대상술량충병변적현시능력,병변변계구화정황이급감별진단개치,위11 C -단안산재뇌내량악성병변적진단제공의거.방법:본연구포괄뇌내점위병변22례(기중량성병변5례,신발저급별효질류 WHO I 급화 II 급공17례).매예외과수술혹활검전균행18 F-FDG화11 C-MET PET 소묘(량차소묘간격시간재1주이내),근거병조급정상대조구(대뇌대측상응정상구역)구화출적감흥취구(region of interest,ROI)진행표준섭취치(Standard uptake value,SUV)평균치측량,계산량성급저급별효질류적종류/비류비(tumor/normal brain uptake ratio,T/NT 비치)적평균치급표준차.대비량충현상제재상술량조병변중 T/N 비치적차별병진행통계학분석.결과:(1)11 C-MET 재량성병변화저급별효질류중적 T/NT 비치분별시1.59±0.28화1.52±0.48,조간차별무통계학의의(P >0.05);18 F-FDG 재량성병변화저급별효질류중적 T/NT 비치분별시0.91±0.48화0.77±0.65,조간차별무통계학의의(P >0.05).(2)재본조소유22례병변중,11 C-MET 현시병변정고대사자19례,18 F-FDG 현시병변정저대사자17례.(3)11 C-MET 소시병조변계청석자17례,18 F-FDG 대병조변계현시청석자부2례.(4)17례병조현시청석적환자11 C-MET 현시병변범위균대우18 F-FDG.결론:수연11 C-MET 화18 F-FDG 량충현상제균무법장량성병변여저급별효질류구분개,단11 C-MET 대병조침범범위급변계적현시균명현우우18 F-FDG FDG,11 C-MET 환가검측화수방저급별효질류(즉타성종류)적생장정황,가위림상제공경다진단、예후급치료신식,인차,11 C-MET 가상규응용우뇌내점위병변적현시,차기효과우우18 F-FDG.
Aim:As the study of Carbon-11 methionine (MET)and fluorine-18 fluorodeoxyglucose <br> (FDG)in differentiating brain benign and low grade glioma was seldom.The aim of this study was to de-termine the effect of these two tracers for distinguishing two groups of patients and evaluating the extent of lesions.Methods:Both carbon-11 MET and fluorine-18 FDG have been used to evaluate brain benign and low grade glioma (LGG).MET positron emission tomography (PET)and FDG PET were all per-formed in 22 patients (5 brain benign lesions,17 low grade glioma WHO grade I and II)within one week for a single patient,Both MET and FDG uptake of the lesions were evaluated by a semiquantitative analy-sis using the standardized uptake value.The Tumor/normal brain uptake ratio (T/N ratio)were calculat-ed in two groups of patients.Results:MET uptake was not significantly different among these two groups (benign:1.59 ±0.28 and LGG:1.52 ±0.48).Similarily,FDG uptake was not significantly different among the two groups (benign:0.91 ±0.48 and 0.77 ±0.65)also.No significantly correlation was ob-served between MET uptake and FDG uptake.19 /22 hypermetabolization of patients were found in MET PET and 17 /22 hypometabolization of patients were found in FDG PET.The extents of increased MET uptake in 17 cases were larger than that of the increased FDG uptake.Conclusion:It is found that both MET and FDG are not useful for distinguishing with benign and LGG.MET was found to be highly useful for detecting benign and LGG,and for evaluating the extent of these lesions which were blurred in FDG PET.MET was also useful for monitoring the growth of LGG.In a word,MET was considered as routine examination for brain lesions.