Grid artifact on chest x-ray

Case contributed by Benjamin Wilson

Patient Data

Age: 70 years
Gender: Male
X-ray

Frontal x-ray showing a grid artifact (vertical banding pattern). 

Case Discussion

Antiscatter grids are routinely used to prevent a degradation in image quality caused by scattered x-ray beams. These grids are made up of x-ray transmitting material, like aluminum strips, and x-ray absorbing material, like lead strips. If the frequency of these lines per cm in the grid is close to the computed radiography sample frequency, then a grid artifact can occur. 

Case made with the help of Dr Jayanth Keshavamurthy, Medical College of Georgia, Augusta. 

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