女性盆腔病变MRI诊断.ppt

女性盆腔病变MRT诊断文性腔疾病里要息义术前分期明确病变的范围估计预后治疗后复查EN手待别间月经状况,周期,末次月经,是否怀孕?有无服用避孕药或其他激素类药物?有无手术或放疗史?有无宫内避孕器或其他异物?体位:仰卧位线圈:相控阵表面线圈·扫描序列:子宫扫描,矢状位T2W最为重要。增强扫描:强调用3D动态增强新技术:DMI性化制定扫精方案以子宫为例:ESUR子宫内膜癌MR扫描推专Tahle2SuggestedMRimagingpotocolforstagingendometrialcarPatientpreparationandpositioning:SupinepositionPelvicphased-arraycoilT2-:Sagittal,axialoblique(perpendicular)andcoronaloblique(parallel),additionalaxialobliqueimageorientationperpendiculartothelongaxisoftheendocervicalcharnelSlicethicknessforthepelvis<4mm,FOV20--resolutionmatrix(512x512)xtendedFovforassessingtheretroperitoneumwithcoronalTI-weightedoraxialT2-weightedsequencewithfatsuppressionCantrast-,associateadenomyosisorfibroids,orinsuspectedadvancedtumors(suspiciousbladderorrectalwallinvasion)2Da3Dtechniquesuybeperformedwiththeoptimaltumor/myometrialcontrasttimingbetween90and150s,binesahightumor-myometriumcontrastwithmultiplanarreformationsandthinslicesections个性化制定扫描方案子宫扫描方案扫描序列压脂定位中心点上下范围扫描范围和作用定位像矢状位T2是宫底全盆腔显示病变,大范围显示分期轴位T2是子宫宫底到宫颈局部;显示病变轴位T1否子宫宫底到宫颈局部;显示病变矢状位T1是宫底全盆腔显示病变;大范围显示分期冠状T2否宫底全盆腔显示病变;||2560/|2560/;长约7~8厘米,宽约4~5厘米,厚约2~3厘米,呈倒置的梨形呈前倾前屈位屈:宫体与宫颈间夹角为170度倾:宫体与***间夹角为90度前面借膀胱***隔与膀胱底相邻;后面借直肠子宫陷凹及直肠***隔与直肠相邻分为子宫底、子宫体和子宫颈三部分输卵管壹腹输卵管峡输卵管伞属带子内限泡状卵泡卵巢卵巢固有韧带毛缘体子官颈10