Baidu
map

Eur radiol:利用扩散MRI联合IVIM模型鉴别纵膈良恶性纵膈淋巴结的价值。

2017-09-29 shaosai MedSci原创

纵隔淋巴结肿大除少数为原发于纵隔的淋巴瘤或霍奇金病外,大多继发于其他脏器疾病。纵隔淋巴结肿大可无特殊症状。但肿大的淋巴结可压迫食管产生吞咽困难 ,也可压迫气管产生呼吸困难。如压迫上腔静脉可产生上腔静脉阻塞综合征,患者有头、面、上胸部肿胀。出现纵隔压迫症状以恶性肿瘤为多,少数结核性纵隔淋巴结肿大形成纵隔肉芽肿或广泛纤维化时也可引起上腔静脉阻塞综合征。本研究旨在评价体素内不相干运动(IVIM)扩散模型

纵隔淋巴结肿大除少数为原发于纵隔的淋巴瘤或霍奇金病外,大多继发于其他脏器疾病。纵隔淋巴结肿大可无特殊症状。但肿大的淋巴结可压迫食管产生吞咽困难 ,也可压迫气管产生呼吸困难。如压迫上腔静脉可产生上腔静脉阻塞综合征,患者有头、面、上胸部肿胀。出现纵隔压迫症状以恶性肿瘤为多,少数结核性纵隔淋巴结肿大形成纵隔肉芽肿或广泛纤维化时也可引起上腔静脉阻塞综合征。本研究旨在评价体素内不相干运动(IVIM)扩散模型鉴别良恶性纵膈淋巴结(MLN)的价值,并将结果发表在Eur radiol上。

本研究共纳入了35例发生MLN增大的患者,并行1.5T MRI扫描。扩散加权扫描采用8个b值进行扫描。在单指数模型得到IVIM参数包括D、D*、f和表观扩散系数(ADC)。91个结节的结果由病理学结果(n=90)和放射学结果(n=1)确定。利用ROC曲线分析诊断效能。

恶性组D、ADC和f值要明显低于良性组(p<0.001),而D*值间并无统计学差异(p=0.281)。在ROC分析中,与ADC和其他单独IVIM参数相比,结合D和f值获得了最大的曲线下面积(0.953),相应最佳特异性和诊断准确率分别为92.9%、90.1%。

研究结果表明,与单独ADC值相比,结合IVIM参数能够增加鉴别良恶性MLN的价值。

原始出处:

Qi LP, Yan WP, Chen KN, et al,Discrimination of Malignant versus Benign Mediastinal Lymph Nodes Using Diffusion MRI with an IVIM Model. Eur Radiol. 2017.DOI: 10.1007/s00330-017-5049-8

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=2021287, encodeId=641d202128eb1, content=<a href='/topic/show?id=699610138b7' target=_blank style='color:#2F92EE;'>#IVIM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10138, encryptionId=699610138b7, topicName=IVIM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a5c2500147, createdName=12498bb3m90(暂无昵称), createdTime=Sun Mar 25 12:14:00 CST 2018, time=2018-03-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1293003, encodeId=0c141293003ac, content=<a href='/topic/show?id=df626600877' target=_blank style='color:#2F92EE;'>#淋巴结#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66008, encryptionId=df626600877, topicName=淋巴结)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6cc1239, createdName=sodoo, createdTime=Sun Oct 01 13:14:00 CST 2017, time=2017-10-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=249185, encodeId=0204249185cb, content=不错的文章值得推荐, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Sat Sep 30 22:28:32 CST 2017, time=2017-09-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=248977, encodeId=f9242489e7f8, content=学习了.谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=131, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Sat Sep 30 06:15:15 CST 2017, time=2017-09-30, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=2021287, encodeId=641d202128eb1, content=<a href='/topic/show?id=699610138b7' target=_blank style='color:#2F92EE;'>#IVIM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10138, encryptionId=699610138b7, topicName=IVIM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a5c2500147, createdName=12498bb3m90(暂无昵称), createdTime=Sun Mar 25 12:14:00 CST 2018, time=2018-03-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1293003, encodeId=0c141293003ac, content=<a href='/topic/show?id=df626600877' target=_blank style='color:#2F92EE;'>#淋巴结#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66008, encryptionId=df626600877, topicName=淋巴结)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6cc1239, createdName=sodoo, createdTime=Sun Oct 01 13:14:00 CST 2017, time=2017-10-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=249185, encodeId=0204249185cb, content=不错的文章值得推荐, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Sat Sep 30 22:28:32 CST 2017, time=2017-09-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=248977, encodeId=f9242489e7f8, content=学习了.谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=131, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Sat Sep 30 06:15:15 CST 2017, time=2017-09-30, status=1, ipAttribution=)]
    2017-10-01 sodoo
  3. [GetPortalCommentsPageByObjectIdResponse(id=2021287, encodeId=641d202128eb1, content=<a href='/topic/show?id=699610138b7' target=_blank style='color:#2F92EE;'>#IVIM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10138, encryptionId=699610138b7, topicName=IVIM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a5c2500147, createdName=12498bb3m90(暂无昵称), createdTime=Sun Mar 25 12:14:00 CST 2018, time=2018-03-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1293003, encodeId=0c141293003ac, content=<a href='/topic/show?id=df626600877' target=_blank style='color:#2F92EE;'>#淋巴结#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66008, encryptionId=df626600877, topicName=淋巴结)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6cc1239, createdName=sodoo, createdTime=Sun Oct 01 13:14:00 CST 2017, time=2017-10-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=249185, encodeId=0204249185cb, content=不错的文章值得推荐, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Sat Sep 30 22:28:32 CST 2017, time=2017-09-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=248977, encodeId=f9242489e7f8, content=学习了.谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=131, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Sat Sep 30 06:15:15 CST 2017, time=2017-09-30, status=1, ipAttribution=)]
    2017-09-30 131****2916

    不错的文章值得推荐

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=2021287, encodeId=641d202128eb1, content=<a href='/topic/show?id=699610138b7' target=_blank style='color:#2F92EE;'>#IVIM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10138, encryptionId=699610138b7, topicName=IVIM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a5c2500147, createdName=12498bb3m90(暂无昵称), createdTime=Sun Mar 25 12:14:00 CST 2018, time=2018-03-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1293003, encodeId=0c141293003ac, content=<a href='/topic/show?id=df626600877' target=_blank style='color:#2F92EE;'>#淋巴结#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66008, encryptionId=df626600877, topicName=淋巴结)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6cc1239, createdName=sodoo, createdTime=Sun Oct 01 13:14:00 CST 2017, time=2017-10-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=249185, encodeId=0204249185cb, content=不错的文章值得推荐, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Sat Sep 30 22:28:32 CST 2017, time=2017-09-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=248977, encodeId=f9242489e7f8, content=学习了.谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=131, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Sat Sep 30 06:15:15 CST 2017, time=2017-09-30, status=1, ipAttribution=)]
    2017-09-30 changjiu

    学习了.谢谢

    0

相关资讯

Eur Radiol.:眼眶淋巴瘤与炎症的扩散性:快速自旋回波扩散加权成像和多重回波平面成像技术的比较!

日本九州大学医学科学研究科临床放射科Hiwatashi A近日在Eur Radiol杂志上发表了一项有趣的工作,标题为"Diffusivity of intraorbital lymphoma vs. inflammation: comparison of single shot turbo spin echo and multishot echo planar imaging technique

Neuroradiology:非酮症性高甘氨酸血症:扩散加权成像典型影像学表现

甘氨酸是一种神经递质,对维持脑功能正常发育有重要作用。血中甘氨酸水平异常增高可引起中枢神经系统毒性反应。导致血甘氨酸升高有两种情况,其一为伴有酮症酸中毒的高甘氨酸血症,可由丙酸和甲基丙二酸血症引起,属于有机酸血症;另一种为甘氨酸分解过程障碍,由于基因突变使酶缺陷所致,其生化改变仅有高甘氨酸血症,不出现酮症酸中毒,故称为非酮症高氨血症。本研究旨在利用扩散加权成像(DWI)甚至扩散张量成像(DTI)纤

Euro Radiol:超高b值扩散加权成像在诊断前列腺癌的价值,是否有取代增强MRI扫描的可能性呢?

前列腺癌是人类特有的疾病,在欧美是男性最常见的恶性肿瘤之一,在美国前列腺癌发病率占第1位,死亡率仅次于肺癌。中国、日本、印度等亚洲国家前列腺癌发病率远低于欧美,但有增长趋势。本研究为了评价T2WI和超高b值(b=2000 s/mm2)扩散加权成像序列在不同年资放射科医生诊断前列腺癌(Pca)的准确性,并将结果发表在Euro Radiol上。

Eur Radiol:MRI序列告诉你如何鉴别眶内淋巴瘤和炎性病变!

眼眶假瘤(pseudotumot of orbit)是一咱比较多见的眼眶病,占眼眶原发性肿瘤的第三位。可发生于不同年龄,男性病人较多,实质上属于一种慢性非特异性炎症。以其能引起眼球突出、眼球运动障碍等眼眶肿瘤所具有的症状而得名,故需要与眼眶淋巴瘤相签别。本研究旨在对比单次激发快速自旋回波扩散加权成像(TSE DWI)与多次激发平面回波扩散加权成像(MSh DWI)鉴别眶内淋巴瘤与炎性病变的价值,并

Eur Radiol:影像科医生临床科研技术贴!--比较体素内不相干运动扩散加权成像技术基于快速自旋回波和平面回波成像在头颈部成像的价值.

TSE序列主要是采取改变数据充填K-空间的方法,即将一个TR间期取得的多个回波的数据,同时放入一个K-空间。这样就有效地大大缩短扫描时间,所得图像也接近常规自旋回波序列所得的质量。TSE快速扫描序列的主要优点,除扫描时间比CSE缩短2~32倍,(甚至更多,主要取决于所选用的回波数目ET,即echotrain)外,图像的显示非常酷似CSE图像。FSE的T2WI图像质量高,运动性和磁化性伪影均较少。通

Eur Radiol:蛋蛋长病了?动态增强和扩散加权MR成像在显示隐匿性实性小睾丸肿瘤的价值

精原细胞瘤多发生于中年以后,常为单侧性,右侧略多于左侧。发生于隐睾的机率较正常位睾丸高几十倍。本瘤为低度恶性。85%的患者睾丸明显肿大,肿瘤局部侵犯力较低,肿瘤一般有明显界限。精原细胞瘤发展较慢,一般先转移至腹膜后淋巴结,后期也可发生广泛血道播散,确诊时,临床期病例占60%~80%。本研究旨在评价利用动态对比增强(DCE)磁共振成像(MRI)的半定量和定量指标以及扩散加权(DW)MRI在鉴别良恶性

Baidu
map
Baidu
map
Baidu
map