This Digital Subtraction Angiography (DSA) Phantom follows the recommendation in Report No. 15 by the AAPM (American Association of Physicists in Medicine) – Digital Radiology / Fluorography Task Group of the Diagnostic X-Ray Imaging Committee. Phantom is designed to evaluate digital functions of DSA systems and can be used to check: contrast range, resolution, linearity, uniformity, amplifier dynamic range, registration accuracy and subtraction effectiveness. Its modular construction allows setting up the desired test configuration in a very easy and accurate manner.
Technical Data
Technical Data (can be modified to customer specifications):
Section I and II
- Step Wedge module, 6 step wedges (each 25.4 mm high) to test dynamic range.
- Can be folded into 203.2 x 203.2 x 76.5 mm solid block.
Section III
- Slot block with a space to fit other test modules.
- Outer size: 203.2 x 203.2 x 76.5 mm.
- Slot size: 203.2 x 152.4 x 25.4 mm.
Registration plate
- Made of aluminium with an array of 3.18 mm holes.
- Size: 203.2 x 203.2 x 1.5 mm
Bone section
- With three PTFE strips 25 mm in width and 5, 10 and 15 mm in thickness.
- Size: 203.2 x 203.2 x 25.4 mm
High Contrast Resolution Section
- Containing pattern for line pair resolution evaluation (from 0.6 to 5.0 LP/mm).
- Thanks to the dedicated recesses, test pattern can be placed in different orientations.
- Size: 203.2 x 203.2 x 25.4 mm
Blank insert
- Used with other modules forms a mask plate.
- Size: 203.2 x 152.4 x 25.4 mm
Linearity Insert
- Contains 6 iodine areas (19 mm diameter) of different iodine thickness and concentration: 0.5, 1.0, 2.0, 4.0, 10.0 and 20.0 mg/cm².
- Size: 203.2 x 152.4 x 25.4 mm
Low Contrast Artery Insert
- Containing 3 sets of analogue blood vessel group (diameters 0.5, 1.0, 2,0 and 4.0 mm), each vessels group includes different iodine concentrations: 2.5, 5.0 and 10.0 mg/cc.
- Size: 203.2 x 152.4 x 25.4 mm
150 mg/ml Iodine Artery Insert
- 3 sets of analogue blood arteries (thickness 1.0, 2.0, 4.0 mm) each includes arteriarctial and arterial aneurysm whose sizes are 1/4, 1/2 and 3/4 of artery diameter.
- Size: 203.2 x 152.4 x 25.4 mm
300 mg/ml Iodine Artery Insert
- 3 sets of analogue blood arteries (thickness 1.0, 2.0, 4.0 mm) each includes arteriarctia and arterial aneurysm whose sizes are 1/4, 1/2 and 3/4 of artery diameter.
- Size: 203.2 x 152.4 x 25.4 mm
