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23 Cards in this Set
- Front
- Back
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thin slice
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has only X and Y axis, made in 2D ultrasound, can only be viewed 1 at a time with minimal averaging techniques
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thick slice
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imaging utilizes volume ultrasound capabilities that renders from slices in a volume
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what is better about thick slice imaging?
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enhances contrast and speckle suppression, gives you a better assessment of size, margins, and internal structures of lesions,
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volume
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box of images with many different planes
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multi-planar
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data from different planes including coronal, longitudinal, transverse for reconstruction into a 3D image
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Render
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subset of a full volume
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pixel
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the smallest element of an image that can be individually processed in a video display system (basic unit for 2D imaging)
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voxel
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The basic unit of computed tomography reconstruction, represented as a pixel in a computed tomography image display (basic unit that makes up a 3D image)
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dataset
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set of images acquired in a volume
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algorithm
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step by step procedure for solving a problem
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identify 10 clinical uses for 3D sonography
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OB, GYN, vascular, small parts, prostate, adult echo, fetal echo, neonatal heads, abdominal, biopsies
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name 3 orthogonal planes used in 3D sonography
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longitudinal, transverse, coronal
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A-plane
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acquisition plane
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B-plane
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90 degrees to A plane
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C-plane
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usually coronal
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name 3 techniques to volume acquisition
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1. manual-physically moving the transducer over the body
2. sensor based: (type of manual) ability to do volumetrics by way of sensor (GPS like) 3. automatic-transducer does its own movement; all volume capabilities |
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name 5 advantages of automatic sonographic volume acquisition
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1. no movement of probe
2. fast acquisition 3. consistent acquisition (is more uniform) 4. anatomy acquired as volume data 5. accurate volume measurements |
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what's so cool about the coronal plane?
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it allows healthcare providers to see things they might have missed otherwise, one picture has 3 dimensions
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reference dots are what?
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a voxel dot common to each image in a volume acquisition
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minimum mode
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displays anechoic and hypoechoic structures as more "solid"
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Inversion mode
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displays anechoic and hypoechoic structures as solid and removes other tissues from the picture
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TUI stands for?
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Tomographic ultrasound imaging (3D)
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how could TUI change sonography?
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1. by making analyzing and documenting data easier
2. there will have to be much less manipulation by the sonographer which will relieve stress on their body |
