Sectional Anatomy - Common Ultrasound terms
Considered a type of sonographic artifact
"increased echo amplitude" or "posterior through transmission" visualized posterior to a structure that does not attenuate (decrease, stop, impede, or absorb) the sound beam. Considered a type of sonographic artifact
As low as reasonably achievable
The prudent use of diagnostic sonography; dictates that the output level and exposure time to ultrasound is minimized while obtaining diagnostic data.
situated at of directed toward the front. A structure in front of another structure.
resistance a material provides to the passage of sound waves.
edge shadowing artifact
"reduced echo amplitude" or echo "drop off" posterior to a structure that attenuates (decreases, stops, impedes or absorbs) the sound beam. Margins of the shadow are generally sharp and well defined.
term used to describe an echo-free appearance on a sonogram image
image artifacts are echo features or structures observed on ultrasound images that are unassociated with the object being imaged.
Accumulation of serous fluid anywhere in the abdominopelvic cavity
decrease in the intensity of the sound beam as it passes through a structure, caused by absorption, scatter, or beam diverence
Axial (short axis)
at right angles to longitudinal sections
widening of the sound beam as it travels
concentration of mineral salts that may accoumpany some disease process.
Two or more measurement cursors that can be manipulated to calibrate the distance between echoes of interest on the imaging screen.
Color Flow Doppler
Doppler shift information in a two-dimensional presentation superimposed on a real-time gray scale anatomic cross-sectional image
abnormal mass within the body composed of both tissue and fluid.
situated on or affecting the opposite side
A comparison to show difference
Coronal Scanning Planes
Any plane parallel to the long axis of the body and perpendicular to sagittal scanning planes.
Substance used to reduce air between the ultrasound transducer and surface of the skin.
Crura of Diaphragm
Right and left crus or fibromuscular bands arising from the lumbar vertebrae that insert into the central tendon of the diaphragm.
Describing the sonographic appearance of a fluid filled collection with the body that does not meet the criteria to be considered a true cyst
internal, situated away from the surface
Depth of penetration
maximum distance the sound beam travels from the transducer through a medium
Infiltrative disease throughout an organ that disrupts the otherwise normal sonographic appearance of organ parenchyma
situated farthest from the point of origin
change in observed sound frequency caused by relative motion between the source of the sound reflector and the observer
A lot of echoes
Describes a structure that is able to produce echoes of echo patterns.
Describes the sonographic appearance of soft tissue structures within the body
Abnormal disease process that originates outside of an organ
Focal / Multifocal change
Disease process confined to isolated areas of an organ
The point at which the sound beam is the narrowest and the resolution is the best.
Scale of achromatic colors having multiple graduations from white to black
Describes an irregular or mixed echo pattern of organ parenchyma on a sonographic image.
Describes an uniform or similar echo pattern of organ parenchyma on a sonographic image.
Comparative term used to describe an area in a sonographic image where the echoes are brighter relative to surrounding structures.
Toward the feet
situated below or directly downward
A structure lower than another
Diffuse disease process that spreads throughout an entire organ
Abnormal disease process that originates within an organ
Abdominopelvic structures enclosed in the sac formed by the parietal peritoneum
situated on or affecting the same side
Isogenic / Isosonic
Comparative term used to describe an area in a sonographic image where the echo patterns are equal in echogenicty
Pertaining to the right or left of the middle of midline of the body. Describes a structure situated at , on, or toward the side.
Represents a circumscribed mass or multiple masses
represents the longest length of a structure
Pertains to length; running lengthwise
circumscribed disease process
Situated at, on, or toward the middle or midlone of the body
Any material through which sound waves travel
A double fold of peritoneum that connects intraperitoneal organs to the abdominal wall
Mirror image Artifact (non-Doppler)
The sonographic image of a structure is duplicated in an atypical position and appears as a mirror image of the original
Degeneration or "death" of tissue
New, abnormal growth of existing tissue; either benign or malignant
at right angles; perpendicular
Tissue composing an organ
Thin sheets of tissue that lines the peritoneal cavity and secretes serous fluid. which serves as lubricant and facililates free movement between organs
a collection of fluid inside the lungs
Situated at or directed toward the back. A structure behind another structure
Situated closest to the point of origin or attachment.
Area of the abdominopelvic cavity located behind or posterior to the peritoneum.
Any plane parallel to the long axis of the body and perpendicular to the coronal scanning plane.
Thin, membranous inclusion within a mass
Abnormal mass within the body composed of on thing tissue
Pictorial record with ultrasound
Highly skilled allied-health professional qualified by technologic education to perform ultrasound examinations of patients and document the results under the supervision of a physician
The physician who interprets a sonogram
Situated on or toward the surface
Toward the head
Situated above or directed upward
A structure higher than another structure
Pertains to the body as a whole
Time gain compensation
Increase in receiver gain with time to compensate for loss in echo amplitude, usually due to attenuation, with depth
considered an artifact
"Increased echo amplitude" or "acoustic enhancement" visulized posterior to a structure that does not attenuate (decrease, stop, impede or absorb) the sound beam.
A device capable of converting electrical energy to mechanical energy and vice versa
Term implying passage of energy through a material
Transverse Scanning Plane
Any plane perpendicular to the long axis of the body
Abnormal mass within the body composed of fluid
Sound at frequencies above 20 kilohertz or above the range of human hearing