Systematic review of pituitary gland and pituitary adenoma automatic segmentation techniques in magnetic resonance imaging.

A statistically significant difference was observed only for the comparison between automatic and semi-automatic PG segmentation, while all other comparisons did not reach statistical significance. 3.4.3 Possible causes of heterogeneity among results Substantial heterogeneity across studies was primarily attributable to limited reporting of MRI acquisition parameters (e.g., repetition time, echo time, flip angle).

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