Obtaining the Best ultrasound image
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Questions and Answers

Which type of pre-set should be used for an abdominal scan?

  • Cardiac
  • Abdomen (correct)
  • Superficial
  • None of the above

    • Before placing the transducer on the animal, what should be done?

  • Turn down ambient light (correct)
  • Adjust the overall gain and power settings
  • Enter the patient details
  • Select the approximate depth of penetration

    • What should be considered when setting the approximate depth of penetration?

  • The size of the structure being examined (correct)
  • The brightness of the image
  • The overall gain and power settings
  • The patient details

    • What should the focal zone be adjusted to?

    <p>The middle of the organ</p> Signup and view all the answers

    What happens if the gain and power settings are too low?

    <p>Little detail of the background image is seen</p> Signup and view all the answers

    What happens if the gain and power settings are too high?

    <p>The image becomes too bright</p> Signup and view all the answers

    What should be done after placing the transducer on the animal?

    <p>Adjust the overall gain and power settings</p> Signup and view all the answers

    What should be adjusted to ensure the organ fills the screen?

    <p>The focal zone</p> Signup and view all the answers

    What should be adjusted to fine-tune the depth of penetration?

    <p>The approximate depth of penetration</p> Signup and view all the answers

    What should be done to obtain a good ultrasound image?

    <p>Adjust the overall gain and power settings</p> Signup and view all the answers

    Which controls are used to adjust the gain at different depths in ultrasound imaging?

    <p>TGC</p> Signup and view all the answers

    What is knobology in ultrasound imaging?

    <p>Changing controls when moving from one organ to another</p> Signup and view all the answers

    Which of the following is NOT a way to optimize an ultrasound image?

    <p>Moving the transducer</p> Signup and view all the answers

    What does pressing 'store' during an ultrasound exam usually result in?

    <p>Recording a short video-clip</p> Signup and view all the answers

    What can be accessed by selecting a specific body system in ultrasound imaging?

    <p>Different measurements</p> Signup and view all the answers

    What happens when sound travels into deeper tissues during ultrasound imaging?

    <p>The tissues appear darker</p> Signup and view all the answers

    What is the purpose of adjusting TGC in ultrasound imaging?

    <p>To optimize the image</p> Signup and view all the answers

    What can be done if the timing is missed when trying to capture an image during an ultrasound exam?

    <p>Scroll back through the last 100 frames</p> Signup and view all the answers

    Which plane is NOT one of the 3 standard planes for imaging in ultrasound?

    <p>Oblique plane</p> Signup and view all the answers

    What does knobology mean in the context of ultrasound imaging?

    <p>Moving the transducer in different ways</p> Signup and view all the answers

    True or false: When performing an abdominal scan using the cardiac pre-set, it is easy to get a good image.

    <p>False</p> Signup and view all the answers

    True or false: The approximate depth of penetration should be set based on the size of the structure being examined.

    <p>True</p> Signup and view all the answers

    True or false: The overall gain and power settings should be set to high values to achieve a good quality image.

    <p>False</p> Signup and view all the answers

    True or false: Adjusting the focal zone to the middle of the organ is necessary to ensure the organ fills the whole screen.

    <p>True</p> Signup and view all the answers

    True or false: Setting the gain and power settings too low will result in a lack of detail in the background image.

    <p>True</p> Signup and view all the answers

    True or false: The gain at different depths in ultrasound imaging is controlled by 6-8 sliding controls labeled TGC or DGC.

    <p>True</p> Signup and view all the answers

    True or false: Knobology in ultrasound imaging involves adjusting controls such as frequency, depth, focal depth, and TGC when moving from one organ to another.

    <p>True</p> Signup and view all the answers

    True or false: Brightness and contrast are typically adjusted in knobology when moving from one organ to another in ultrasound imaging.

    <p>False</p> Signup and view all the answers

    True or false: Pressing 'store' during an ultrasound exam, when the image is not frozen, usually results in a short video-clip being recorded.

    <p>True</p> Signup and view all the answers

    True or false: All ultrasound machines have the capability to make measurements using cursors on the screen, such as linear length or area.

    <p>True</p> Signup and view all the answers

    What are some important considerations when selecting an appropriate pre-set for an ultrasound examination?

    <p>Some important considerations when selecting an appropriate pre-set for an ultrasound examination include matching the pre-set to the type of examination (e.g., cardiac, abdomen, superficial structures) and avoiding using the wrong pre-set for the desired image quality.</p> Signup and view all the answers

    What steps can be taken to optimize the depth of penetration during an ultrasound exam?

    <p>To optimize the depth of penetration during an ultrasound exam, one can select an approximate depth of penetration (magnification or arrows), adjust the overall gain and power settings to mid/low values, and fine-tune the depth of penetration by adjusting the focal zone.</p> Signup and view all the answers

    How can the overall picture quality be adjusted during an ultrasound exam?

    <p>The overall picture quality during an ultrasound exam can be adjusted by increasing or decreasing the overall gain and power settings as necessary to achieve a good quality image.</p> Signup and view all the answers

    What are the consequences of setting the gain and power settings too low or too high during an ultrasound exam?

    <p>If the gain and power settings are set too low during an ultrasound exam, the detail in the background image may be lacking. If they are set too high, the image may appear too bright.</p> Signup and view all the answers

    Why is adjusting the focal zone to the middle of the organ important in ultrasound imaging?

    <p>Adjusting the focal zone to the middle of the organ is important in ultrasound imaging because it ensures that the organ fills the whole screen, optimizing the image quality.</p> Signup and view all the answers

    What are the different ways to optimize an ultrasound image?

    <p>The different ways to optimize an ultrasound image include imaging in the 3 standard planes (dorsal, sagittal, transverse), imaging in non-standard planes, sliding and angling the transducer, and rotating the transducer.</p> Signup and view all the answers

    What does knobology mean in the context of ultrasound imaging?

    <p>Knobology in ultrasound imaging refers to the process of adjusting controls such as frequency, depth, focal depth, and TGC (time gain compensation) when moving from one organ to another.</p> Signup and view all the answers

    How can measurements be made using ultrasound machines?

    <p>Measurements can be made using cursors on the screen, which can include linear length, area, or periphery. Selecting a specific body system enables different measurements to be accessed.</p> Signup and view all the answers

    What should be done after placing the transducer on the animal?

    <p>After placing the transducer on the animal, the ideal picture should be obtained and labeled, and then the image can be stored or printed.</p> Signup and view all the answers

    What are some examples of measurements that can be transformed into biological values using ultrasound machines?

    <p>Measurements can be transformed into biological values such as estimated gestational age or predicted date of parturition.</p> Signup and view all the answers

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