User's Manual

Acclarix LX9 Series Diagnostic Ultrasound System User Manual Measurements and Reports
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8.2.8. Pediatric Measurements
No.
Measurement
Group
Measurement
Item
Description
Method
Section 1: B-mode Measurements
1.1
LLV
Left lateral ventricle
Distance in
B-mode generic
measurements
1.2
RLV
Right lateral ventricle
1.3
LT Tri
Left trigone
1.4
RT Tri
Right trigone
1.5
HIP
HIP Angle
Hip joint angle
Hip Joint(See
section 8.2.8.1)
HIP d/D
Hip joint d/D ratio
8.2.8.1. Hip Joint Measurement
Hip Joint Angle Measurement:
Hip Joint Angle Measurement is intended to evaluate the development of acetabular roof and the
subluxation of femoral head for pediatrics. This measurement is performed by adding three straight
lines on the anatomic image, thereby calculating two angles. See the illustration below.
 Line A (Baseline) connects the osseous acetabular convexity to the point where the joint capsule
and the perichondrium unite with the iliac bone;
 Line B(Inclination Line) connects the osseous acetabular convexity to the labrum acetabulare;
 Line C(Roof Line) connects the lower edge of the iliac bone to the osseous acetabular convexity.
 α is the angle between baseline and roof line.
 β is the angle between baseline and inclination line.
To use Hip Joint Angle measurement:
1. Invoke the B-mode application measurement function.
2. Select HIP-> HIP Angle on the touch screen and then select Left or Right on touch screen. A
horizontal straight line will be displayed on the image field.
3. Use the trackball to move this horizontal straight line to place the baseline. Rotate the Angle knob
on the console to adjust the angle of baseline if necessary.