Air gap technique is recommended in axiolateral hip radiographs.

Susanne KivistöAntti O KotiahoAnja HennerTerhi NevalaJaakko Niinimäki Miika Tapio Nieminen Matti Hanni

Published in: Journal of applied clinical medical physics (2020)

Based on the phantom study, it is possible to reduce radiation dose by replacing conventional grid with air gap without compromising image quality. The optimal air gap distance appears to be 30 cm, based on the FOM analysis. Patient study corroborates this observation, as sufficiently good image quality was found in 24 of 26 patient radiographs, with 7 of 26 images obtained with 30 cm air gap. Thus, air gap method, with an air gap distance of 30 cm, is recommended in axiolateral hip radiography.

Keyphrases

image quality
computed tomography
case report
dual energy
magnetic resonance imaging
deep learning
machine learning
convolutional neural network