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Congenit Anom (Kyoto). 2017 Mar;57(2):52-56. doi: 10.1111/cga.12197.

Magnetic resonance imaging based correlation analysis between calcarine sulcus development and isolated fetal ventriculomegaly.

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Department of Radiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.


Fetal ventriculomegaly development leads to neurological, motor, and/or cognitive impairment, and is presently diagnosed based on the width of the atrium in the lateral ventricle. But in this study, we have tried to assess the relationship between the development of calcarine sulcus and width of fetal lateral ventricles, to assess if calcarine sulcus can also be used for fetal ventriculomegaly diagnosis. We conducted a retrospective analysis of the magnetic resonance imaging (MRI) data from 45 subjects with isolated mild fetal ventriculomegaly (IMVM). The calcarine sulcus development was divided into three categories based on the depth; Grade 1 (undeveloped), Grade 2 (underdeveloped), and Grade 3 (fully developed), and its correlation with fetal ventriculomegaly was analyzed based on Spearman's partial rank correlation test. Based on this analysis, the width of left and right lateral ventricles showed significant downward trend with the calcarine sulcus maturation [undeveloped (Left 13.88 ± 2.70 mm, Right 14.27 ± 3.13 mm) → underdeveloped (Left 12.95 ± 1.93 mm, Right 11.93 ± 2.24 mm) → fully developed (Left 11.06 ± 2.10 mm, Right 10.42 ± 2.10 mm)] (FLeft  = 5.12, P = 0.01; FRight  = 10.72, P = 1.73 × 10-4 ). In addition, significant correlations were also observed between the width of the lateral ventricles and the maturity of the calcarine sulcus (Spearman's rank correlation coefficient; -0.47 for the left lateral ventricles and -0.56 for the right, both P < 0.001). Overall, our data indicated a negative correlation between the fetal morphological development of calcarine sulcus and the width of lateral ventricles in subjects having isolated fetal ventriculomegaly.


calcarine sulcus; fetal lateral ventricles; magnetic resonance imaging; width measurements

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