Cranial Bone Density and Scalp Perfusion in Positional Plagiocephaly: Quantitative Assessment Using Low-Dose Computed...

Area of Science:

• Pediatric Radiology
• Cranial Deformities
• Infant Health

Background:

• Positional plagiocephaly is a common infant condition.
• Quantitative assessment of cranial bone characteristics is limited.
• Understanding bone density and perfusion is crucial for treatment evaluation.

Purpose of the Study:

• To assess cranial bone density and scalp perfusion in infants with positional plagiocephaly.
• To evaluate changes following helmet therapy using low-dose computed tomography (CT).
• To establish low-dose CT as a diagnostic tool for infant cranial deformities.

Main Methods:

• Retrospective analysis of 61 infants with moderate to severe positional plagiocephaly.
• Quantification of cranial bone density using Hounsfield units.
• Evaluation of scalp perfusion and changes post-helmet therapy in 10 infants.

Main Results:

• Infants with positional plagiocephaly showed significantly lower bone density on the flattened side (P<0.001).
• Reduced scalp perfusion was observed on the flattened side (P<0.01).
• Helmet therapy led to significant improvements in both bone density and scalp perfusion.

Conclusions:

• Positional plagiocephaly is associated with localized reductions in bone density and perfusion.
• These deficits appear reversible with appropriate helmet therapy.
• Low-dose CT is a practical tool for diagnosing and quantifying infant cranial deformities.