DD IEC/TS 62558:2011

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Ambient conditions of measurement with the phantom
6 Specification of TMM 3D artificial anechoic-cyst
  phantom
7 Principle of measurement using the 3D anechoic void
  phantom
Annex A (informative) - Description of construction of
        an example phantom and test results
Annex B (informative) - System description
Annex C (informative) - Rationale
Annex D (informative) - Uniformity measurement
Bibliography

Gives essential characteristics of a phantom and method for the measurement of void-detectability ratio for medical ultrasound systems and related transducers.

IEC/TS 62558:2011(E) specifies essential characteristics of a phantom and method for the measurement of void-detectability ratio for medical ultrasound systems and related transducers. It is restricted to the aspect of long-term reproducibility of testing results. Medical diagnostic ultrasound systems and related transducers need periodic testing as the quality of medical decisions based on ultrasonic images may decrease over time due to progressive degradation of essential systems characteristics. The TMM (Tissue Mimicking Material) phantom is intended to be used to measure and to enable documentation of changes in void-detectability ratio in periodic tests over years of use. This technical specification establishes:
- Important characteristics and requirements for a TMM 3D artificial cyst phantom using anechoic voids
- A design example of a 3D artificial cyst phantom, the necessary test equipment and use of relevant computer software algorithms.
This technical specification is currently applicable for linear array transducers. A uniformity test prior to void-detectability ratio (VDR) measurement is recommended.