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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_5775_Библиотеки_им_академика_М_И_Перельмана

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A.Metastaticdiseasefromthyroidcancer B.Carotidarterydissection C.Ectaticinnominate/proximalcommoncarotidartery D.Carotidbodyparaganglioma E.Largepartiallythrombosedcarotidarteryaneurysmcausingseverestenosis
31.Whichofthefollowingwillnotaffectthecalculationofresistiveindex?
A.Dopplerangle
B.Peaksystolicvelocity C.End-diastolicvelocity D.Absenceofdiastolicflow
32.SelectedcolorandduplexDopplerimagesofalivertransplantareprovided.Whatothersonographic
findingswouldsupportthediagnosisshownintheimage?
A.Increasedechogenicityoftheportaltriads B.Parvus–tarduswaveformoftheintrahepaticarteries C.ThrombusintheIVCpiggybackanastomosis D.Dilationoftheportalveinintheportahepatis E.Lackofflowintherightandleftportalveins
33.Changingthe“Dopplerscale”ontheultrasoundmachineresultsinchangeinwhichofthefollowing?
A.Gain B.Fieldofview C.Dopplerangle D.Pulserepetitionfrequency
34.WhichoneofthefollowingwillimproveDopplersensitivity?
A.Increasingwallfilter B.Decreasinggain C.IncreasingDopplerangle D.DecreasingDopplerscale
35.Toavoidaliasingartifacts,thepulserepetitionfrequency(PRF)mustbe:
A.AtleasttwotimesthehighestDopplerfrequencyshift
B.SameasthehighestDopplerfrequencyshift C.AtleasthalfofthehighestDopplerfrequencyshift D.AtleastaquarterofthehighestDopplerfrequencyshift
36.Wheredoeslaminarflowoccurinbloodvessels?
A.Inthecenteroflargesmoothvessels B.Intheperipheryoflargesmoothvessels C.Atthebifurcationoflargesmoothvessels D.Atsitesofstenosisinlargesmoothvessels
37.  A 30-year-old male patient with left calf pain and swelling underwent lower extremity venous
ultrasoundimaging.Gray-scaleimageswithout(left)andwithcompression(right)areshown.Colorand spectralDopplerimagesarealsoshown.Whatisthemostlikelydiagnosis?
A.Acutepoplitealveinthrombosis B.Chronicpoplitealveinthrombosis C.Normalstudy D.Poplitealarteryaneurysm
38.WhatistherangeforthepreferredDopplerangle?
A.0to30degrees B.30to60degrees C.60to90degrees D.90to120degrees
39.Whatisthetermdescribingthegeneration,growth,vibration,andpossiblecollapseofmicrobubbles
withintissueasaresultofultrasoundpressurewaves?
A.Cavitation B.Thermalbioeffect C.Ring-downartifact D.Scatter
40a.A48-year-oldfemalecomplainsofabdominalpain4daysfollowingrighthepatictrisegmentectomy
(removal of the right hepatic lobe and medial segment of the left hepatic lobe) for excision of liver metastases. Spectral Dopplersonography oftherightupperquadrant was performed. What is themost likelyexplanationofthesefindings?
A.High-gradestrictureofthelefthepaticartery B.Formationofarteriovenousfistula C.Pseudoaneurysmofthelefthepaticartery D.Expectedpostsurgicalappearanceoflefthepaticartery
40b.WhichofthefollowingartifactsisshowninthiscolorDopplerimageofthelefthepaticlobeinthe
samepatient?