图文详析高分辨率纤维束成像让12对颅神经现形Word文档下载推荐.docx
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图文详析高分辨率纤维束成像让12对颅神经现形Word文档下载推荐.docx
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figure2.opticnerve.a,regionsofinterest(rois)fortheopticnerve;
oneisplacedattheopticnerve,andtheotherisplacedinthelateralgeniculatebody.b,roisfortheopticradiation;
oneisplacedinthelateralgeniculatebodyandanotherisplacedwithintheoipitallobe.c,high-definitionfibertractography(hdft)ofthevisualpathways.inallsubjects,wewereabletoreconstructthenasalportionoftheopticnerve,lateralportionoftheopticnerve,opticchiasm,optictracts,andpleteopticradiation(rad.),includingthemeyerloop,centralbundle,anddorsalbundle.d,anatomicdissectiontocorrelatewith(c)(inferiorview).e,close-upviewofopticchiasm.blueandyellowtractsrepresentthelateralportionoftheopticnerve.greenandredtractsrepresentthenasalportionoftheoptictracts.thelateralportionoftheopticnervewasreconstructedbybininganroiintheopticnerveandanroiinthesamesideofthelateralgeniculatebody.thenasalportionoftheopticnervewasreconstructedbybininganroiintheopticnerveandanroiintheoppositesideofthelateralgeniculatebody.f,closeviewoftheopticradiation.g,anatomicdissectiontocorrelatewith(f)(lateralview).图2视神经。
a,感兴趣区选在神经经和外侧膝状体;
b,感兴趣区选在外侧膝状体和枕叶;
c,高分辨率示踪视觉通路,可以呈现出鼻侧视神经,颞侧视神经,视交叉,视束,视放射;
d,对应的解剖示意图;
e,详观视交叉成像,蓝色和黄色代表颞侧视神经,绿色和红色代表鼻侧视神经;
f,详观视放射成像;
g,对应的解剖示意图
figure3.oculomotornerve.aandb,regionsofinterest(rois)fortheoculomotornerve(cranialnerve[]iii);
oneisplacedatthecisternalportionoftheoculomotornerve(a),andtheotherisplacedinfrontofthefourthventricleattheleveloftheupperpons(b).c,high-definitionfibertractography(hdft)ofiii(axialview).fibertractsenterfromtheinterpeduncularcisternintothebrainstemandthendescendnearthemidlineofthebrainstem.d,anatomicdissectiontocorrelatewith(c)(superiorview).e,hdftofiii(obliqueview).f,hdftofiii(sagittalview).mlf,mediallongitudinalfasciculus.图3动眼神经a,感兴趣区选在动眼神经桥前池部分;
b,感兴趣区选在桥脑上端四脑室前;
c,高分辨率示踪动眼神经,纤维束在角间池内进入脑干,在脑干内侧下降;
e,斜位观察动眼神经高分辨率示踪;
f,矢状位观察动眼神经高分辨率示踪。
mlf,内侧纵束
figure4.trochlearnerve.a,regionsofinterest(rois)forthetrochlearnerve(cranialnerve[]iv);
oneisplacedadjacenttotheinferiorcolliculus,andtheotherisplacedatthecavernoussinus.b,high-definitionfibertractography(hdft)ofivbeforesegmentation(axialview).c,hdftofivaftersegmentation(axialview).d,hdftofivaftersegmentation(obliqueview).e,close-upandlateralviewsofhdftoftheoculomotor(iii),trochlear,andtrigeminal(v)nerves.wecouldobservethewell-knowncrossingofsiiiandivatthecavernoussinus.f,anatomicdissectiontocorrelatewith(e).图4滑车神经a,感兴趣区选在下丘和海绵窦区;
b,高分辨率示踪未分割的滑车神经;
c,高分辨率示踪分割后的滑车神经;
d,斜位观察分割后的滑车神经;
e,侧位详观高分辨率示踪动眼神经,滑车神经,三叉神经,可见动眼神经和滑车神经在海绵窦内交叉;
f,对应的解剖示意图.
figure5.trigeminalnerve.a,regionofinterest(roi)forthetrigeminalnerve(cranialnerve[]v).anroiisplacedatthecisternalportionofv.b,high-definitionfibertractography(hdft)ofv.reconstructionofvstoppedatthe
pons(arrowhead).whetherthesefiberswentthroughthemotornucleusofv,thespinalnucleusofv,orthemainsensorynucleusofvwasdifficulttoascertainbecausethesenucleiareanatomicallyveryclosetoeachother.c,hdftofv(obliqueview).theophthalmicnerve(v1),maxillarynerve(v2),andmandibularnerve(v3)werereconstructed.v1wasreconstructedin9of10hemispheres;
v2wasreconstructedin7of10hemispheres;
andv3wasreconstructedin6of10hemispheres(d),anatomicdissectiontocorrelatewith(c)(lateralview).e(axial)andf(coronal),hdftofv(othercase).reconstructionoftheleftvstoppedatthepons(arrowhead).reconstructionoftherightvdescendedinthebrainstem.hdftalsoreconstructedfibersintothecerebellum.however,thesefibersdidnotcorrespondtonormalstructures;
thus,thesefibersintothecerebellumwereconsideredtobefalsecontinuationsintothemiddlecerebellarpeduncle.stn,spinaltrigeminalnucleus;
str,spinaltrigeminaltract.图5三叉神经。
a,感兴趣区选在桥前池部分;
b,高分辨率示踪三叉神经桥脑前段;
c,斜位观察高分辨率三叉神经,可重建出眼神经,上颌神经,下颌神经;
e,f,水平位和冠状位三叉神经的高分辨率重建,左侧三叉神经到桥脑后结束,右侧三叉神经纤维进入小脑,这与正常解剖结构不符。
stn,脊髓三叉神经核;
str,脊髓三叉神经束。
figure6.abducensnerve.aandb,regionsofinterest(rois)fortheabducensnerve(cranialnerve[]vi).oneisplacedattheentranceofthedorellocanal(a),andtheotherisplacedadjacenttothepontomedullarysulcus(b).c,high-definitionfibertractography(hdft)ofvi(axialview).d,hdftofv(obliqueview).e,close-upviewofhdft.thepetroclivalportionofviwasreconstructedin2of10hemispheres.f,anatomicdissectiontocorrelatewith(e)(superiorview).ica,internalcarotidartery;
petrosphen.lig.,petrosphenoidligament.图6外展神经。
a,感兴趣区选在dorello入口处;
b,感兴趣区选在脑桥延髓沟处;
c,高分辨率示踪外展神经;
d,斜位观察外展神经;
e,外展神经高分辨率示踪局部观;
f,对应的解剖示意图。
ica,颈内动脉;
petrosphen.lig.蝶岩韧带
figure7.facial-vestibulocochlearnerve.a,regionofinterest(roi)forthefacial-vestibulocochlearnerve(cranialnerve[]vii/viii)plex.oneroiisplacedattheinternalauditorymeatuswiththecentralfocusontheporusoftheinternalauditorymeatus.b,high-definitionfibertractography(hdft)ofthevii/viiiplex(axialview).hdftreconstructedthecisternalportionofthevii/viiiplexinallsubjects.hdftalsodemonstratedfibersabovethepons.however,thesetractsdidnotcorrespondtonormalstructures;
thus,thesefibersabovetheponswereconsideredtobefalsecontinuations.c,roiforthefacialnerve(vii).oneroiisaddedadjacenttothefacialcolliculus.d,hdftofvii(axialview).e,hdftofsviiandviii(axialview).theredtractrepresentsvii,andthegreentractrepresentsviii.f,hdftofsviiandviii(coronalview).g,anatomicdissectiontocorrelatewith(f)(frontalview).图7面前庭蜗神经。
a,感兴趣区选在内听道处;
b,高分辨率示踪面前庭蜗神经复合体;
c,感兴趣区选在面丘处;
d,高分辨率示踪面神经;
e,高分辨率示踪面神经和前庭蜗神经,红色代表面神经,绿色代表前庭蜗神经;
f,冠状位观察面神经和前庭蜗神经;
g,对应的解剖示意图。
figure8.lowercranialnerves.a,regionsofinterest(rois)fortheglossopharyngeal(cranialnerve[]ix)andvagusnerves(x).oneroiisplacedatthejugularforamen,andtheotherisplacedadjacenttothesuperiorone-thirdofthepostolivarysulcus.b,high-definitionfibertractography(hdft)ofsixandxbeforesegmentation(axialview).c,hdftofsixandxaftersegmentation(axialview).d,roisfortheaessorynerve(xi).oneroiisplacedatthejugularforamen,andtheotherisplacedadjacenttotheinferiortwo-thirdsofthepostolivarysulcus.e,hdftofxi(axialview).f,roisforthehypoglossalnerve(xii).oneroiisplacedatthehypoglossalcanal,andtheotherisplacedattheinferiortwo-thirdsofthepreolivarysulcus.g,hdftofxii(axialview).h,hdftofsixthroughxii(coronalview).i,anatomicdissectiontocorrelatewith(h)(frontalview).图8后组颅神经。
a,感兴趣区分别选在颈静脉孔和橄榄后沟上三分之一;
b,高分辨率示踪舌咽神经和迷走神经未分割段;
c,高分辨率示踪舌咽神经和迷走神经分割段;
d,感兴趣区选在颈静脉孔区和橄榄后沟下三分之一处;
e,高分辨率示踪副神经;
f,感兴趣区选在舌下神经管和橄榄后沟下三分之一处;
g,高分辨率示踪舌下神经;
h,冠状位观舌咽神经,迷走神经,副神经和舌下神经;
i,对应的解剖示意图
figure9.high-definitionfibertractography(hdft)usingthehumanconnectomeproject488template.a,hdftofthevisualpathways(axialview).b,close-upviewofhdftoftheopticchiasm(axialview).blueandyellowtractsrepresentthelateralportionoftheopticnerve.greenandredtractsrepresentthenasalportionoftheoptictracts.c,hdftoftheoculomotornerve(cranialnerve[]iii;
obliqueview).d,hdftofthetrochlearnerve(iv)(obliqueview).e,hdftofthetrigeminalnerve(v;
axialview).theintrabrainstemportionofvwasnotreconstructed.f,hdftofv(obliqueview).thebranchesofvwerereconstructedinpletely.g,close-upandlateralviewsofhdftofsiiithroughv.h,hdftofthefacialandvestibulocochlearnerve(vii/viii;
axialview).i,hdftoftheglossopharyngeal(ix)andvagusnerves(x).mlf,mediallongitudinalfasciculus.图9健康人高分辨率示踪示意图。
a,视觉通路的高分辨率示踪图;
b,视交叉高分辨率示踪局部观;
c,动眼神经高分辨率示踪;
d,滑车神经高分辨率示踪;
e,水平位三叉神经高分辨率示踪;
f,斜位三叉神经高分辨率示踪;
g,动眼神经,滑车神经,三叉神经高分辨率示踪局部观;
h,面神经和前庭蜗神经高分辨率示踪;
i,舌咽神经和迷走神经高分辨率示踪
病例解析
颅内肿瘤患者dti成像,术前可以明确肿瘤与神经的关系
figure10.illustrativecase1.hypothalamicglioma.a,axialand(b)coronalstructuralmagicresonanceimage.c,highdefinitionfibertractography(hdft)oftheopticnerve(on),opticchiasm(oc),andoptictract(ot).dande,hdftshowsaclearrelationshipbetweentheopticchiasmandtumor.d,frontalview.e,simulationviewoftherightsupraorbitalapproach.f,intraoperativepicture.thelocationsofreconstructednerveswereconsistentwithintraoperativefindings.a1,horizontalportionoftheanteriorcerebralartery;
ica,internalcarotidartery.图10下丘脑胶质瘤患者高分辨率示踪。
a,b,水平位和冠状位mri图像;
c,高分辨率示踪视神经,视交叉,视束;
d,e,高分辨率示踪提示视神经和肿瘤关系密切;
d,冠状位前面观;
e,同步显示右侧眶上入路;
f,术中所见。
a1,大脑前动脉水平段;
ica,颈内动脉
figure11.illustrativecase2.petroclivalmeningioma.a,axialand(b)coronalstructuralmagicresonanceimages.a,axialview.b,coronalview.c,high-definitionfibertractography(hdft)oftheoculomotornerve(cranialnerve[]iii),trochlearnerve(iv),trigeminalnerve(v),andabducensnerve(vi;
coronalview).hdftshowsaclearrelationshipbetweensiiithroughviandthetumor.d,magnifiedviewsofleftsiiithroughvi(coronalview).eandf,intraoperativepictures.thelocationsofreconstructednerveswereconsistentwithintraoperativefindings.图11岩斜区脑膜瘤患者高分辨率示踪。
c,高分辨率示踪动眼神经,三叉神经,外展神经;
这些神经与肿瘤关系密切;
d,动眼神经,三叉神经,外展神经放大观;
e,f,术中所见神经与肿瘤的关系,与高分辨率示踪相一致.
figure12.illustrativecase3.giantadenoma.a,visualfieldtestshowedapletebitemporalhemianopsia.b,preoperativestructuralmagicresonanceimage(mri;
coronalview).c,high-definitionfibertractography(hdft)oftheopticnerve(cranialnerve[]ii)andchiasm(coronalview).d,hdftoftheoculomotornerve(iii)andthetrigeminalnerve(v;
coronalview).e,hdftoftheleftiii(obliqueview).f,intraoperativepicture.iiiispletelyencasedbytumorattheproximalcavernoussinus.thelocationofreconstructediiiwasconsistentwithintraoperativefindings.g,postoperativestructuralmri(coronalview).图12巨大垂体瘤患者高分辨率示踪。
a,视野检查提示双眼颞侧偏盲;
b,术前mri图像;
c,高分辨率示踪视神经,视交叉;
d,高分辨率示踪动眼神经和三叉神经;
e,高分辨率示踪左侧动眼神经;
f,术中所见,动眼神经在近海绵窦段被完全包裹,与高分辨率示踪一致;
g,术后mri图像.
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