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1、January2004RenalMassEvaluationwithMRIDawnBarclay,HMS3GillianLieberman,MDMenuofTests•••USUSUS•••DxofSimplecyst-anechoic,DxDxofSimplecyst-anechoic,sharplydefinedbackwallandsharplydefinedbackwallandenhancementofthroughsoundtransmission.Oneortwoenhancementofthroughsoundtransmissio
2、n.Oneortwoseptationsseptationsseptationsmaybevisiblesonographically.maybevisiblesonographically.•••79%sensitivityindetectingrenalmasses79%sensitivityindetectingrenalmasses•••80%ofdetectedrenalmassesar80%ofdetectedrenalmassesareecharacterizedassimplecystscharacterizedassimplecy
3、stsandrequirenofurtherstudy.andrequirenofurtherstudy.•••Atypicalfindingssuchascalcifications,morethantwoAtypicalfindingssuchascalcifications,morethantwoseptationsseptations,andseptalthickeni,andseptalseptalthickeningorngornodularityandpresencyofnodularitynodularityandpresencyp
4、resencyofsolidcomponentsmustbefollowedupwithCTorMRI.solidcomponentsmustbefollowedupwithCTorMRI.Warshauer,1988DawnBarclay,HMS3Davidson,1997Einstein,1995GillianLieberman,MDZagoria,1998Menuoftests-cont…•••CTCTCT•••94%sensitivityindetectingrenalmasses94%sensitivityindetectingrenal
5、masses94%sensitivityindetectingrenalmasses•••WidespreadavailabilityWidespreadavailabilityWidespreadavailability•••MorerapidevaluationtimeincomparisonwithMorerapidevaluationtimeincomparisonwithMorerapidevaluationtimeincomparisonwithCTCTCT•••MorecosteffectivethanCT.Morecosteffec
6、tivethanCT.MorecosteffectivethanCT.Warshauer,1988Dunnick,1992DawnBarclay,HMS3GillianLieberman,MDMenuoftests-cont…•••MRIMRIMRI•••StudiesindicatethatMRimagingisStudiesindicatethatMRimagingisStudiesindicatethatMRimagingiscomparablewithoptimalCTfordetection,comparablewithoptimalCT
7、fordetection,comparablewithoptimalCTfordetection,diagnosis,andstagingofrenalmasses.diagnosis,andstagingofrenalmasses.diagnosis,andstagingofrenalmasses.Semelka,1992Dunnick,1992Zagoria,1997Fritszche,1989DawnBarclay,HMS3Fein,1987GillianLieberman,MDWhatisMagneticResonanceImaging?•
8、••T1recoveryT1recoveryT1recovery-Longitudinalremagnetization-
