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CME TEST
Year : 2018  |  Volume : 26  |  Issue : 4  |  Page : 232

CME Test


Date of Web Publication14-Dec-2018

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Source of Support: None, Conflict of Interest: None


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How to cite this article:
. CME Test. J Med Ultrasound 2018;26:232

How to cite this URL:
. CME Test. J Med Ultrasound [serial online] 2018 [cited 2021 Jan 15];26:232. Available from: http://www.jmuonline.org/text.asp?2018/26/4/232/247294

  1. Which is the most common subepithelial tumor in stomach?


    1. Gastrointestinal stromal tumor (GIST)
    2. Leiomyoma
    3. Lipoma
    4. Carcinoid tumor


  2. Which subepithelial tumor can grow from muscularis propria?


    1. Gastrointestinal stromal tumor (GIST)
    2. Leiomyoma
    3. Ectopic pancreas
    4. All of the above


  3. Which one is the most common endoscopic appearance of gastrointestinal stromal tumor (GIST)?


    1. Hypoechoic, Irregular border
    2. Hyperechoic, Irregular border
    3. Hypoechoic, Regular border
    4. Hyperechoic, Regular border


  4. How many gastrointestinal stromal tumors (GIST) have malignant potential and require surgical removal?


    1. 0-10%
    2. 10-30%
    3. 30-50%
    4. 50-70%


  5. Which method can increase the preoperative endoscopic ultrasonography (EUS) diagnostic rate of gastrointestinal stromal tumor (GIST)?


    1. Contrast-enhanced EUS
    2. Ultrasound elastography
    3. Digital image analysis software
    4. All of the above


  6. The twinkling artifacts are more likely to present in guidewires with ______diameters.


    1. Lager
    2. Smaller
    3. The twinkling artifacts are not associated with diameter of guidewires


  7. What is the underlying mechanism of twinkling artifacts?


    1. Twinkling artifacts are related to rough surfaces with multiple reflectors.
    2. Twinkling artifacts are caused by internal machine noise or associated with machine settings.
    3. All of above.


  8. What kind of parameters of guidewires shows influence on the twinkling artifacts?


    1. Type of material
    2. Type of coating
    3. None of above


  9. In the present study, when echocardiography-assisted guidance during cardiac intervention is used and showed twinkling artifacts, it may indicate ____________.


    1. Intracardiac flow
    2. The location of the guidewire
    3. None of above


  10. Twinkling artifacts have been described behind ___________ in various extracardiac tissues.


    1. Calcifications
    2. Fluid
    3. Fat





 

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