Which Measurement is the one you all mention?

July 10, 2008

gets her Starband next Wed and I was looking at the #'s from her

scan to figure out which number you all mostly talk about when looking

at progress. Our Ortho went over all the numbers with us but

specifically focused on two in particular. One was 12mm and the other

was the asymatry percentage of 59%. He said that we want to get her

measurments down to about 6mm and in the 30's for the other.

Does the type of band or scan you have change what numbers you all talk

about? What do you focus on for progress.

I posted some pix of under the Q-R babies section.

July 10, 2008

Here is an explanation of the STARscanner Report:

(Level 3 measurements)

• Cephalic Ratio = Cranial Breadth / Cranial Length. An ideal ratio

would be 0.78 or 78%. Brachycephaly Severity - normal - 73-83%; moderate -

83.1% to 87.9%; severe - 88% and higher. Scaphocephaly Severity - normal -

73-83%; moderate - 68.1% to 72.9%; severe - 68% and below.

• Radial Symmetry Index (RSI) = from the front of the head, 15°

segments are measured and added. The addition of the right side segments is

subtracted to the addition of the left side segments. An ideal ratio would

be left side – right side = 0 (<30 mm normal)

• Oblique Cranial Maximum and Minimum = Ideally one is looking to have

the maximum line vertical and the minimum line horizontal.

• Oblique at 30 deg (US1 and US2) = Length of diagonal taken at 30° on

each side (30° corresponds to the corner of the eye). The subtraction of

US1 and US2 gives an indication of the asymmetry of the head. An asymmetry

between 0-3 mm is normal; <6 mm is very mild; 6-10 mm is mild; 10-15 mm is

moderate; 15+ mm is severe

• Q1, Q2, Q3, Q4 volumes: Draws vertical and horizontal lines centered

on middle point of head. Measures volume of each corner starting front

left, then front right, back right and back left.

• Anterior Symmetry Ratio: looks at front of head and divides front

left volume with front right volume. An ideal ratio would be 1

• Posterior Symmetry Ratio: looks at back of head and divides back

right volume with back left volume. An ideal ration would be 1

• Overall Symmetry Ratio: Divides left side with right side. An ideal

ratio would be 1

• Upper facial left and upper facial right: Measures the length

between the centre of the front to each left and right ear. This

corresponds to a cranial bone and determines the position of the ear.

• Upper Facial Symmetry Ratio: Divides Upper Facial Right with Upper

Facial Left. An ideal ratio would be 1

• Cranial Vault Asymmetry Index (CVAI): the percentage difference in

plagio, (100%-(US1/US2)). 0-3 mm normal

• Ear Offset - this number seems to be very subjective because the

ortho places stickers near the ears that the machine picks up to take this

measurement. If they are placed differently each time the number will come

out differently

Molly

Novato, California