Abstract

The purpose of this project was to identify sources and clinical significance of 3DUS artifacts on patient diagnosis and to increase clinician and sonographer awareness to reduce misdiagnosis in 3DUS studies. To accomplish this 3DUS data were acquired and reviewed interactively. Artifacts were cataloged according to origin: B‐mode, color/power Doppler or unique to 3DUS (acquisition, rendering or volume editing). Original scan planes, re‐sliced planes and rendered images were evaluated. Overall our results showed a variety of artifacts. B‐mode artifacts included drop‐out, shadowing, etc. and depending on relationships between slice and imaging plane orientation. Color/power Doppler artifacts were related to gain, aliasing, and flash and could add apparent structure or confusion to the volume images. Rendering artifacts were due to parameter adjustment, shadowing and motion.Important structures could be removed by improper editing. In conclusion 3DUS and 2DUS are prone to similar artifacts plus others unique to 3DUS. Diagnostically significant artifacts can mimick abnormal development, masses, or missing structures thus requiring careful study before reaching a diagnosis.

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