应用3.0TMRIIDEAL-IQ技术评价腮腺脂肪含量的增龄性变化

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[Abstract]Objective：Tomeasuretheadultparotidglandfatfractionusing3.OTMRIIDEAL-IQtechnologyandtoevaluate itscorelationwithage.Methods：Aretrospectiveanalysiswasconductedon12Opatientswhounderwentroutineheadand neckMRIexaminations.Theparticipantsweredividedintofouragegroups，theyouthgroup（aged18to44），middle-aged group（aged45to59），youngerelderlygroup（aged60to74），andelderlygroup（aged75to89），with30casesineach group.Thefatfraction（FF）valuesofbilateralparotidglandsweremeasured，andthediferencesinFFvaluesbetween theleftandrightparotidglandwerecomparedineachgroup.ThediferencesinFFvalueandBMIamongthefourgroups werecompared too.CorelationanalysiswasconductedbetweenFFvalueandage，BMI.Results：Therewasnostatisticaly significantdiferenceintheFFvaluesbetweentheleftandrightparotidglands（allP>.O5）．However，significantintergoup diferenceswerefoundintheaverageFFvaluesof thebilateral parotidglandsamong the fourgroups（al P<0.001 ）. There were no significant intergroup differences in BMI among the four group （all P >0.05）．The parotid gland FFvalues were positively correlated with age r=0.443，P<0.001 ）.Conclusions：The FF values of bilateral parotid glands in adults have nodiferencesandarecorelatedwithage.Thereforeage-relatedchangesinparotidfatcontentshouldbecarefullyconsiered when evaluating patients with Sjogren’s syndrome.

[Keywords]Magneticresonanceimaging;Parotidgland;Fatcontent;Iterativedecompositionofwaterandfatwithecho asymmetry and least-spuares estimation quantification sequence

口腔大涎腺包括腮腺、颌下腺和舌下腺，是含有脂肪的腺体，随年龄增长，这些涎腺的脂肪含量不断增加。（剩余4939字）