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Testicular Microlithiasis related to McCune-Albright Syndrome
Joseph Junewick, MD FACR
over 7 years ago
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ARSt Case Repository

Image Compositing Artifact

Case Detail

Anatomy: Brain-Spine
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Radiation Safety-Physics
Created: over 5 years ago
Updated: over 5 years ago
Tags: PEDS
Modality/Study Types: CR
Activities:
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History

2 year old male with halo traction for scoliosis.


Case Images


Diagnosis

Image Compositing Artifact

Findings

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

Discussion

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.

Reference

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



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