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Osteoid Osteoma
Joseph Junewick, MD FACR
over 11 years ago
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Image Compositing Artifact

Case Detail

Anatomy: Brain-Spine
Joseph Junewick, MD FACR
Diagnostic Category: Radiation Safety-Physics
Created: over 8 years ago
Updated: over 8 years ago
Tags: PEDS
Modality/Study Types: CR
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2 year old male with halo traction for scoliosis.

Case Images


Image Compositing Artifact


CR – AP scoliosis radiograph shows apparent “spinal dislocation” in the upper lumbar region.


Image composite artifact occurs when multiple separate radiographic images are sewn together to make a single image. Usually 2 or 3 CR cassettes are arranged into a single holder with a slight overlap. Using fiducial markings in the images, the overlapping exposures are digitally combined. Failure to recognize this artifact can incorrectly attribute pathology.


Walz-Flannigan A, Magnuson D, Erickson D, Schueler B. Artifacts in digital radiography. AJR (2012); 198:156-161.

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