US artifacts: effects on out-of-plane us images reconstructed from three-dimensional data sets

Area of Science:

• Medical Imaging
• Diagnostic Ultrasound
• Image Reconstruction

Background:

• Three-dimensional (3D) ultrasound (US) imaging allows for volumetric data acquisition.
• Reconstructing images from data sets acquired out-of-plane can introduce unique visualization challenges.
• Understanding artifact behavior in 3D US is crucial for accurate interpretation.

Purpose of the Study:

• To investigate the impact of common ultrasound artifacts on cross-sectional images reconstructed from 3D volumetric data.
• To compare the appearance of artifacts in original 2D scans versus reconstructed 3D images.
• To assess the potential of these artifacts to simulate pathological findings.

Main Methods:

• Acquisition of three-dimensional volumetric data sets using stacked ultrasonographic scans.
• In vitro and in vivo experimental setups for data collection.
• Reconstruction of cross-sectional images from the volumetric data, specifically out-of-plane to the acquisition plane.

Main Results:

• Ultrasound artifacts exhibited altered appearances on reconstructed images compared to their presentation on source images.
• The visual discrepancies between source and reconstructed artifact appearances were noted.
• Specific artifact characteristics changed when viewed in reconstructed planes.

Conclusions:

• Common ultrasound artifacts can present differently in reconstructed 3D images.
• These altered artifact appearances may be misinterpreted as genuine pathological abnormalities.
• Awareness of artifact behavior in 3D reconstructions is essential for avoiding diagnostic errors.