北京市中医院影像医学英语考核

北京市中医院影像医学英语考核一、单选题（每题2分，共20题）1.Inthediagnosisoflungcancer,whichimagingmodalityismostsensitivefordetectingsmallpulmonarynodules?A.ChestX-rayB.CTscanC.MRID.PET-CT2.Whatistheprimaryroleofcontrast-enhancedMRIintheevaluationofmusculoskeletallesions?A.DetectingearlyosteoarthritisB.DifferentiatingbetweenbenignandmalignanttumorsC.AssessinglungfunctionD.Evaluatingbrainatrophy3.Whichofthefollowingimagingfindingsismostsuggestiveofacutemyocardialinfarctiononechocardiography?A.GlobalhypokinesisB.NormalwallmotionC.PulsusparadoxusD.Pericardialeffusion4.Inpediatricimaging,whichtechniqueispreferredforevaluatingrenalmasseswhileminimizingradiationexposure?A.ConventionalradiographyB.CTurogramC.MRIurographyD.DSA5.WhatisthemostcommoncauseofpseudolesiononMRIofthebraininpatientswithmigraine?A.HemorrhagictransformationB.WhitematterhyperintensityC.CerebraledemaD.Meningealenhancement6.WhichimagingsignishighlyspecificforacuteappendicitisonCT?A.AppendicolithB.PerforatedappendicitisC.EnlargedmesentericlymphnodesD.Pneumoperitoneum7.Intheevaluationofacutestroke,whatisthepreferredtimewindowforthrombolysisbasedoncurrentguidelines?A.Within3hoursB.Within4.5hoursC.Within6hoursD.Within12hours8.WhichofthefollowingimagingfindingsischaracteristicofosteoarthritisonMRIoftheknee?A.SubchondralcystB.SynovialthickeningC.BonemarrowedemaD.Cartilagesignalloss9.Inpatientswithsuspectedpulmonaryembolism,whichimagingmodalityisconsideredthegoldstandard?A.ChestX-rayB.CTpulmonaryangiographyC.Ventilation-perfusionscanD.MRIpulmonaryangiography10.Whichradiologicfeatureismostindicativeofabenignthyroidnoduleonultrasound?A.MicrocalcificationsB.HypervascularityC.HomogeneoustextureD.Irregularmargins二、多选题（每题3分，共10题）1.WhichofthefollowingarecommonartifactsinMRI?A.ChemicalshiftartifactsB.MotionartifactsC.PartialvolumeartifactsD.Radiofrequencyartifacts2.Intheevaluationofmusculoskeletaltumors,whichimagingmodalitiesarecommonlyused?A.X-rayB.CTC.MRID.PET-CT3.Whichsignsonultrasoundaresuggestiveofgallstones?A.HyperechoicfociwithposterioracousticshadowingB.Ring-downartifactsC.Fluid-filledgallbladderD.Markedenhancementaftercontrastadministration4.WhatarethekeyimagingfeaturesofacutepancreatitisonCT?A.PancreaticenlargementB.PeripancreaticfatstrandingC.NecroticareasD.Biliaryductdilation5.WhichofthefollowingarecontraindicationsforMRI?A.PacemakerB.MetalimplantsC.FerromagneticobjectsD.Insufficientbodytemperature6.Inthediagnosisofosteoporosis,whichimagingtechniquesarerecommended?A.Dual-energyX-rayabsorptiometry(DEXA)B.BoneultrasoundC.MRID.CTdensitometry7.Whichimagingfindingsareconsistentwithcholecystitis?A.GallbladderwallthickeningB.PericholecysticfluidC.GallstonesD.Liverabscess8.Intheevaluationofcentralnervoussystem(CNS)tumors,whichMRIsequencesaretypicallyused?A.T1-weightedimageswithcontrastB.T2-weightedimagesC.FLAIRsequencesD.Diffusion-weightedimaging(DWI)9.WhichofthefollowingarecommonindicationsforCTangiography?A.SuspectedpulmonaryembolismB.CerebralaneurysmevaluationC.PeripheralarterydiseaseD.Cardiaccatheterizationplanning10.WhataretheadvantagesofultrasoundoverCTinobstetricimaging?A.NoionizingradiationB.Real-timeimagingcapabilityC.HighspatialresolutionD.Cost-effectiveness三、填空题（每空1分，共10空）1.Themostcommonsiteofprimarybonecancerinadultsisthe______.2.Theappearanceofarenalmassasa"exophyticpolyp"onultrasoundsuggestsa______.3.InMRI,the______sequenceisparticularlyusefulfordetectingbrainedema.4.The"doublecontoursign"onCTishighlysuggestiveof______.5.Thegoldstandardfordiagnosingendometrialcanceris______.6.Thepresenceof______inathyroidnoduleonultrasoundincreasestheriskofmalignancy.7.The"teardropsign"onCTischaracteristicof______.8.Therecommendedintervalforfollow-upMRIinpatientswithmultiplesclerosisis______.9.The______isthemostsensitivesignofacutemyocardialinfarctiononechocardiography.10.The______artifactonMRIiscausedbyrapidmovementofstructuresduringimageacquisition.四、简答题（每题5分，共4题）1.DescribethekeyimagingfeaturesofpulmonaryembolismonCTpulmonaryangiography.2.Explaintheroleofcontrast-enhancedMRIinthedifferentiationofbrainabscessandmetastatictumor.3.DiscusstheadvantagesofultrasoundoverCTintheevaluationofpediatricrenalmasses.4.Outlinetheimagingprotocolforapatientsuspectedofhavingacuteappendicitis.五、翻译题（每题10分，共2题）1.TranslatethefollowingintoEnglish:"在骨肉瘤的MRI表现中，肿瘤内部可见出血、坏死，周围软组织肿块常伴有明显水肿，增强扫描呈不均匀强化。"2.TranslatethefollowingintoEnglish:"胸部CT显示肺门淋巴结肿大，伴肺内多发小结节，提示可能存在淋巴瘤转移，需进一步行PET-CT检查确认。"答案与解析一、单选题答案与解析1.B-解析：CT扫描具有更高的空间分辨率和对比度，能够更清晰地显示小肺结节，而胸片分辨率较低，MRI对肺结节敏感性不如CT。2.B-解析：增强MRI可通过血供差异帮助鉴别良恶性肌肉肿块，如良性肿块通常无强化或均匀强化，恶性肿瘤则呈不均匀强化。3.A-解析：急性心肌梗死时，梗死区域心肌收缩功能丧失，表现为局部运动减弱或消失，即全局性室壁运动异常。4.C-解析：MRIurography无电离辐射，适用于儿童，可清晰显示肾实质及集合系统病变。5.B-解析：白质高信号是脑部微血管病变，常见于migraine患者但无特异性。6.A-解析：粪石是急性阑尾炎的典型CT表现，而其他选项更多为并发症表现。7.B-解析：急性缺血性卒中，静脉溶栓最佳时间窗为4.5小时。8.C-解析：骨骨髓水肿是OA的早期表现，而其他选项更多为晚期改变。9.B-解析：CT肺动脉造影是诊断肺栓塞的金标准，敏感性高。10.C-解析：良性甲状腺结节通常边界清晰、回声均匀，而其他选项多为恶性特征。二、多选题答案与解析1.A,B,C,D-解析：化学位移、运动、部分容积及射频伪影均为MRI常见伪影。2.A,B,C,D-解析：X光、CT、MRI及PET-CT均用于骨肿瘤评估，各有优势。3.A,B,C-解析：胆结石典型超声表现为强回声伴声影，但D选项错误，增强扫描对结石诊断无帮助。4.A,B,C-解析：胰腺增大、脂肪条纹及坏死是急性胰腺炎的CT特征，D选项更多见于胆源性胰腺炎。5.A,B,C-解析：体内含铁磁性物质（如起搏器）及金属植入物禁止MRI检查，D选项非绝对禁忌。6.A,B-解析：DEXA和骨超声是骨质疏松常用检查，CT主要用于骨密度评估而非骨质疏松诊断。7.A,B,C-解析：胆囊壁增厚、周围积液及结石是胆囊炎典型表现，D选项更多见于胆囊炎并发症。8.A,B,C,D-解析：上述序列均有助于CNS肿瘤诊断。9.A,B,C-解析：CTA常用于肺栓塞、脑血管畸形及外周血管病变，D选项需血管造影检查。10.A,B,D-解析：超声无辐射、实时动态及经济性优于CT，C选项空间分辨率不及CT。三、填空题答案与解析1.股骨近端-解析：骨肉瘤好发于青少年长骨，股骨远端及胫骨近端最常见。2.良性病变-解析：肾外生性息肉样病变多为良性，如血管平滑肌脂肪瘤。3.FLAIR序列-解析：FLAIR（液体衰减反转恢复）可抑制脑脊液信号，清晰显示水肿。4.胆结石-解析：双凸边征是胆结石典型CT表现，边缘呈高密度凸起。5.子宫内膜活检-解析：组织学检查是确诊子宫内膜癌的金标准。6.微钙化-解析：微小钙化提示甲状腺乳头状癌风险增加。7.肺栓塞-解析：下叶基底段楔形实变伴“肺门凹陷”是肺栓塞典型表现。8.6个月-解析：MS患者需定期MRI随访监测病灶进展。9.室壁运动异常-解析：梗死区域心肌收缩功能丧失，表现为局部运动减弱。10.运动伪影-解析：患者移动导致图像模糊，需保持静止。四、简答题答案与解析1.肺栓塞的CTPA表现-答案：肺动脉内充盈缺损、肺门淋巴结肿大、肺梗死及右心增大。-