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
1
ImagingCenter,SecondAffiliatedHospital,MedicalSchool,
Xi’an
JiactongUniversity,)【i’锄710004,China,2hnagingCen-
tor,Central
Hospital
of)(i勺m
C蛔,Ⅺ’觚710001,China,
3
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
a
hiiShcorrelationamong
the
considered
visual
ratingscales
for
WMLsanda
best
iI此咖ter
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