超聲造影評(píng)價(jià)兔肝炎性假瘤和VX2肝癌血流灌注的實(shí)驗(yàn)研究.pdf

1、山西醫(yī)科大學(xué)碩士學(xué)位論文超聲造影評(píng)價(jià)兔肝炎性假瘤和VX2肝癌血流灌注的實(shí)驗(yàn)研究姓名：白雪萍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：影像醫(yī)學(xué)與核醫(yī)學(xué)指導(dǎo)教師：雷成功20060420山西醫(yī)科大學(xué)碩士學(xué)位論文ExperimentofHepaticInflammatoryPseudoneoplasmandVX2CarcinomaPerfusioninRabbitsbyContrastenhancedUltrasonographyAbstractObjectiv

2、eToinvestigatetheclinicalvalueofContrastenhancedultrasonographyinthedifferentialdiagnosisofliverlesionsbyassessingperfusionofhepaticInflammatoryPseudoneoplasmandVX2carcinomainrabbitsbyrealtimecontrast—enhancedultrasonogr

3、aphyandSonoVueMethods10rabbitswithIPLandl0rabbitswithVX2carcinomawasstudiedbylowmechanicalindex(MI)contrast‘enhancedsonographyrespectivelySonoVuewasappliedbyintravenousbolusinjectionResultsRealtimecontrastenhancedimaging

4、clearlydelineatedthedynamicenhancementofthetumorsandliverparenchymaduringthewholephaseAIlIPLshowednoenhancementinarterialphase，Butincreasedintheportalanddelayphase，disappearedslowlyinlaterdelayphase，whiletheechogenicityo

5、fthesurroundinglivertissuedidButa11VX2tumorsshowedhyperechoicenhancementinarterialphaseshowingthreepatternswhichwerehomogeneousenhancement，peripheralenhancementandheterogeneousenhancementHypoechoicenhancementwereobserved

6、intheportalanddelayedphasecomparedtOthehepaticparenchymaaroundthetumorlesionsAfterthearterialphase，theechogenicityofthesurroundinglivertissueincreasedandtheintensityofthenoduledecreasedgradually，Contrastagentwaswashedout

7、earlierfromthetumorthanfromsurroundingliverparenchyma1TherewasnosignificantdifferenceofparametersofthetimeintensitycurvebetweenIPLandtheliverparenchyma(P005)Thetimetoenhancement(ET)，thetimetopeakintensity(PIT)，thetimeofa