脑白质病变MRI视觉分级方法的比较

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研究原著 文章编号:1000-2790(2008)03-0273-04

脑白质病变M砒视觉分级方法的比较

张秋娟1,杨军乐1,2,郭佑民3,姚晓新4,徐敏1”,张静1,白芝兰1

(1西安交通大学医学院第二附属医院影像中心,

陕西西安710004,2西安市中心医院影像中心,陕西西安710001,3首都医科大学附属北京朝阳医院放射科,北京100020,4西

安市第四医院影像中心陕西西安710004)

Comparisonofvisualratingscalesfor

whitematterlesions

on

magnetic

reso-

nance

nnaglng

ZHANG

Qiu.Juanl,YANGJun.Le‘'2,GUOYou—Min3,YAO

Xiao—

Xirt4,XU心n1一,ZHANG五昭‘,BAI

Zhi—Lanl

ImagingCenter,SecondAffiliatedHospital,MedicalSchool,

Xi’an

JiactongUniversity,)【i’锄710004,China,2hnagingCen-

tor,Central

Hospital

of)(i勺m

C蛔,Ⅺ’觚710001,China,

DepartmentofRadiology,BeijingCh,Ioyang

Hospital,Capital

Medical

University,Beijing100020,China,4Inlaging

Center,

FourthHospitalofXi'anCity,Xi'an710004,China

【Abstract】AIM:To

eompare7widely

used

rating

scalesfor

whitematter

lesions(WMLs)onM砒,to

assess

thecorrelations

amongthescalesandtheinterrateragreementforeachscale,and

to

calculatetheconversioncoefficientsofthe

score

betweendif-

ferent

scales.METHODS:Weselectedrandomly50patients

withvariousdegreesofWMIJ8

on

T2一FLAIR

imaging.The

WMLs

were

scoredby

twotrmned

raters

using7MRIratingscales

for

WMLs.Spearmanrankcorrelation,Kappa

test

and

regression

analysis

were

applied.RESULTs:A

lligh

correlationWasoh-

served

amongthe7scales(correlationcoefficientsrangingfrom

0.579to

0.917,P<0.05).Apart

fromthescaleofSchelten

(modilified)and

Ylikoski,otherratingscalesdemonstrated

better

interrater

agreement(K>O.585).Using

regressionanalysis,wedetermined

numericparameters

to

transformthet眈,oreof1

scale

to

thecorresponding8core

foreachoftheremaining

scales,except

forthe

scaleofAharon—PeretzJandDeGreotJC.ne

predictive

valuesofthese

conversions酽ranged

from0.5856to0.8892.

CoNCLUSION:Ourdatademonstrates

hiiShcorrelationamong

the

considered

visual

ratingscales

for

WMLsanda

best

iI此咖ter

agreementforthescaleofAharon-Peretz …… 此处隐藏:8537字,全部文档内容请下载后查看。喜欢就下载吧 ……

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