
Lateral resolution (ultrasound) | Radiology Reference Article ...
Aug 13, 2023 · Lateral resolution in ultrasound refers to the ability to discern two separate objects that are adjacent to each other. The ultrasound beam should be narrower than the gap between the two …
Axial resolution (ultrasound) | Radiology Reference Article ...
Sep 18, 2025 · Axial resolution in ultrasound refers to the ability to discern two separate objects positioned close to each other along the ultrasound beam 1,3. Axial resolution is generally around …
Elevational resolution (ultrasound) - Radiopaedia.org
Aug 10, 2023 · Elevational resolution represents the extent to which an ultrasound system is able to resolve objects within an axis perpendicular to the plane formed by the axial and lateral dimensions.
Beam focusing | Radiology Reference Article | Radiopaedia.org
Oct 3, 2024 · Beam focusing refers to creating a narrow point in the cross-section of the ultrasound beam called the focal point. It is at the focal point where the lateral resolution of the beam is the …
Harmonic imaging | Radiology Reference Article - Radiopaedia.org
Jul 22, 2025 · Harmonic imaging exploits non-linear propagation of ultrasound through the body tissues. The high pressure portion of the wave travels faster than the low pressure portion resulting in …
Temporal resolution (ultrasound) | Radiology Reference Article ...
May 21, 2020 · Temporal resolution in ultrasound represents the extent to which an ultrasound system is able to distinguish changes between successive image frames over time (i.e. movement).
Ultrasound artifacts | Radiology Reference Article | Radiopaedia.org
Jul 24, 2025 · Ultrasound artifacts are commonly encountered and familiarity is necessary to avoid false diagnoses. In some cases, specific artifacts can even offer valuable diagnostic information.
Ultrasound frequencies | Radiology Reference Article | Radiopaedia.org
Sep 7, 2025 · Ultrasound frequencies in diagnostic radiology range from 2 MHz to approximately 15 MHz. Higher ultrasound frequencies have shorter wavelengths and provide better detail and spatial …
Spatial resolution | Radiology Reference Article | Radiopaedia.org
Feb 20, 2024 · Spatial resolution refers to the ability of an imaging modality to differentiate two adjacent structures as being distinct from one another. Other related terms include definition or visibility of detail.
Phased array | Radiology Reference Article | Radiopaedia.org
Aug 23, 2025 · The sensitivity of the image reduces at extremes of steering and lateral resolution is best in the center of the field of view due to a larger effective aperture.