Two-Dimensional Imaging
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Which two techniques are used only in specific clinical settings? | show 🗑
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| What shape of an active element does a mechanical transducer obtain? | show 🗑
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| show | one
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| In a mechanical transducer, what is the shape of the active element? | show 🗑
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| With a mechanical transducer, what would the image shape be? | show 🗑
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| What kind of beam steering does a mechanical transducer have? | show 🗑
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| What kind of beam focusing does a mechanical transducer have? | show 🗑
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| In a mechanical transducer, what two methods of fixed focusing are there? | show 🗑
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| What is internal focusing? | show 🗑
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| What is external focusing? | show 🗑
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| show | the entire image is lost
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| show | multiple active elements
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| What are elements? | show 🗑
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| show | combination if the active element, wire, and system electronics
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| What is the arrangement of a linear transducer? | show 🗑
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| show | arranged as circular rings w/ common center (bulls eye)
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| show | arranged as a curved
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| show | when the beam is steered and focuses using an electrical technique
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| In a linear phased array, what would the shape of the active element be? | show 🗑
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| How many active elements does a linear phased transducer have? | show 🗑
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| With a linear phased array transducer, what would the image shape be? | show 🗑
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| What kind of beam steering does a linear phased array transducer have? | show 🗑
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| What kind of beam focusing does a linear phased array have? | show 🗑
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| In linear phased array, what happens when one element is damaged? | show 🗑
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| show | bulls-eye
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| show | multiple ring shaped
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| What kind of beam steering does a annular phased array transducer have? | show 🗑
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| show | electronic w/ multifocal zone
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| With a annular phased array transducer, what would the image shape be? | show 🗑
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| show | only portion of the image lost
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| In a linear sequential array, what would the shape of the active element be? | show 🗑
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| How many active elements does a linear sequential transducer have? | show 🗑
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| show | rectangle/parallelogram shaped
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| show | electronic
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| What kind of beam focusing does a linear sequential array transducer have? | show 🗑
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| In linear sequential array, what happens when one element is damaged? | show 🗑
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| How many active element does a convex, curved, or curvilinear transducer obtain? | show 🗑
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| show | rectangular shape strips
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| show | electronic, some but not all
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| show | electronically, curved spike like pattern
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| show | blunted sector shaped
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| show | only portion of image is damaged
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| show | rectangular shape strips
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| show | 120-250
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| What kind of beam steering does a vector array transducer have? | show 🗑
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| show | electronic
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| show | trapezoidal
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| show | accuracy in imaging
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| show | contributes to image quality
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| show | in a direction perpendicular to the imaging plane or above-to-below the imaging plane
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| show | mechanical and annular phased
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| show | thousands of elements arranged in a checkerboard pattern that created 3D
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| show | real time 3D imaging
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| What is rendering? | show 🗑
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| What are side lobes? | show 🗑
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| show | side lobes
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| What are grating lobes? | show 🗑
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| What apodization? | show 🗑
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| What is subdicing? | show 🗑
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| What is dynamic aperture? | show 🗑
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Created by:
Lazacha
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