Digital Subtraction
TO DSA
The TO DSA phantom is used for quality control testing of the image quality performance of digital subtraction angiography systems.
TO DSA enables measurement of:
- Video system stability
- Dynamic range
- Spatial resolution
- Contrast (iodine) resolution
- Contrast uniformity
- Contrast linearity
- Spatial uniformity
- Mis-registration artefacts
TO DSA includes:
- Vessel (& blank) block
- Spatial resolution block
- Bone block
- Slot block
- Step wedge (in two parts)
- Mis-registration insert
Conforms to standards:
- AAPM Report 15: “Performance evaluation and quality assurance in digital subtraction angiography”
