MR Assessment to Define Brain Abnormalities in Very Preterm Infants at Term

Panda Protocol

Cerebral WM Score

Cystic Lesions None
Focal Unilateral
Focal Bilateral
Extensive Unilateral
Extensive Bilateral

Focal Signal Abnormality None
Focal Punctate
Extensive Punctate
Linear

Myelination Delay PLIC and Corona Radiata
PLIC Only
Minimal

Thinning of the Corpus Callosum None
Genu/Body less than 1.3mm OR splenium less than 2mm
Genu/Body less than 1.3mm AND splenium less than 2mm

Dilated Lateral Ventricles Both sides less than 7.5mm
One side between 7.5 and 10mm
Both sides between 7.5 and 10mm or one side greater than 10mm
Both sides greater than 10 mm

Volume Reduction cBPW greater than 77mm
cBPW between 77 and 72mm
cBPW between 72 and 67mm
cBPW less than 67mm

Cortical GM

Signal Abnormality None
Focal Unilateral
Focal Bilateral
Extensive Unilateral
Extensive Bilateral

Gyral Maturation Delay less than 2 weeks
Delay between 2 and 4 weeks
Delay is greater than 4 weeks

Increased Extracerebral Space IHD less than 4 mm
IHD between 4 and 5mm
IHD between 5 and 6mm
IHD greater than 6mm

Deep GM

Signal Abnormality None
Focal Unilateral
Focal Bilateral
Extensive Unilateral
Extensive Bilateral

Volume Reduction cDGMA greater than 9.5cm2
cDGMA between 9.5 and 8.5cm2
cDGMA between 8.5 and 7.5cm2
cDGMA less than 7.5cm2

Cerebellum

Signal Abnormality None
Punctate Unilateral
Punctate Bilateral
Extensive Unilateral
Extensive Bilateral

Volume Reduction cTCD greater than 50mm
cTCD between 50 and 47mm
cTCD between 47 and 44mm
cTCD less than 44mm

Generated Report

© Steven Ross 2018

Adapted from Kidokoro, H., et al. “New MR Imaging Assessment Tool to Define Brain Abnormalities in Very Preterm Infants at Term.” AJNR. American Journal of Neuroradiology, vol. 34, no. 11, Dec. 2013, pp. 2208–14.