Energy consumption of ultrasound devices during routine applications and opportunities to save energy and costs

To determine the real energy consumption, including the idle and off-mode status of ultrasound devices and their multiparametric modes during daily examinations.

In this study, the electrical power consumption from 9 ultrasound devices and 18 probes used in routine medical practice was measured for a full 24 h over a week. The equipment was located in the neurology and cardiology departments of a large hospital, as well as in a radiology medical practice. The devices were manufactured by different companies and varied in age.

Short-term measurements recorded the electrical power consumption during patient scans, revealing real power values for the applied modalities, which ranged between a mean of 182.5 W and 415.5 W, depending on the device and application field. Long-term measurements, reflecting the typical working days of these departments, showed total annual electrical power consumption ranging from 344.6 kWh to 1122.6 kWh. Energy-saving possibilities are discussed, highlighting that reducing idle-mode durations can significantly lower electrical costs by saving energy of 3-16%.

This study is the first to document in detail the power consumption of different ultrasound devices and modalities, including idle and off-mode statuses, during routine use.

Question Which procedures during ultrasound examinations have high power consumption and what is the idle- and off-mode consumption of different devices. Findings Energy consumption can vary greatly depending on the application. Savings potentials of 3-16% could easily be realized in the daily routine. Clinical relevance Exact knowledge of power consumption of a device during off-, idle-, and some often-used active-modes (all are easy and fast to perform) can help to optimize examination scenarios and minimize power consumption and thus energy costs.