We recommend to consult the most current literature on MRI safety issues (http://www.MRIsafety.com).com
One of the key references for MRI safety issues is the Shellock's MRI safety website [ 13] referencing a large number of objects, including several ballistic items.
Furthermore, their study had some limitations including the small study sample, significant differences in study size and MRI quality issues that may have compromised the T2/T2* assessment of the thin cartilage layer of the tibial plateau.
This creates a sample selection (or endogeneity) issue when attempting to assess the causal impact of onsite MRI acquisition on MRI volume.
These examples will allow us to describe and discuss the efficiency and the limitations of this method in order to solve applied and concrete issues in MRI.
(3) If radiation is an issue, use MRI.
However, only a true longitudinal study with serial evaluations with DXA and MRI will clarify this issue.
Before addressing the questions of the clinical relevance of MEG for seizure-onset localization in MRI-negative patients, several issues regarding data analysis and interpretation deserve comments.
From a clinical viewpoint, the issue regarding MRI quantification of hepatic steatosis in patients affected by chronic viral C hepatitis has been addressed in few previous works [ 24– 26].
