OVERVIEW
The Model 071B Image-Guided Abdominal Biopsy Phantom is based on the need for simplified abdominal
training phantoms. The phantom does not contain organs but the randomly positioned lesions are visible
under ultrasound and CT, with key features outlined in the table below. The polymer gel will not leak
when punctured. This phantom is well suited for training and demonstrating image-guided navigation
technologies or any other procedure where visually locating the needle is important. The background gel is
designed to minimize needle tracks when punctured, allowing many uses over time, is soft enough to allow
puncture with 21 gauge needles or larger, yet stiff enough that the lesions remain stable in position. The
071B has re-designed cluster sizes and a new muscle/fat layer combination that allows us to make a softer
background gel for reduced needle tracking. For most users, this phantom will still provide an excellent
imaging testbed, even after several hundred needle punctures.
SPECIFICATIONS
DIMENSIONS
28 x 20 x 12.5 cm
Weight: 5.5 kg
BACKGROUND
Material:
Optically clear Zerdine
®(1)
gel
Speed of sound: 1540 m/s (nominal)
MASSES
Material: Zerdine, soft tissue
Quantity: 12
Diameter: 5 - 12mm
RIBS & VERTEBRAE
Material: Radio-opaque epoxy
SCAN SURFACE
Material:
Z-skin
TM
elastomer
MUSCLE LAYER
Material:
Hyperechoic Zerdine
®
gel
(ensures phantom retains shape over time)
OTHER
CT visible, MRI-compatible “H” marker
to indicate head/ foot orientation (see figure)
USE OF THE PHANTOM
The phantom was designed for demonstration and training of image-guided naviga-
tion technologies. However, it is also well suited for training and demonstration of any
biopsy procedure.
Ultrasound
Ultrasound
CT
CT