This is the ALARA principle (i.e. as low as reasonably achievable). It is acknowledged, that in some situations it is reasonable to use higher output or longer examination times than in others: for example, the risks of missing a fetal anomaly must be weighed against the risk of harm from potential bioeffects.

Most importantly a diagnostic image must be obtained to enable you to answer the clinical question, therefore practice ALARA (as low as reasonably achievable). If you cannot adhere to the recommended safety levels you should scan with the MI and TI as low as possible to achieve a diagnostic scan.

2002年1月1日 · Benefits and risks of ultrasound examinations and the concept of ALARA, i.e., exposure As Low As Reasonably Achievable, are introduced. Output display standards (Thermal [TI] and Mechanical [MI] Indices) provide information on the potential for bioeffects and help to implement ALARA easily and efficiently.

The BMUS has published guidelines for the safe use of diagnostic ultrasound. These guidelines tabulate recommended maximum scanning times for obstetric, neonatal and other applications (BMUS website and ). These times are based loosely on the thermal dose, while applying a safety margin, and identify different exposures in terms of the TI ...

2023年11月1日 · Those are the parts that make up the As Low As Reasonably Achievable (ALARA) standard. British Medical Ultrasound Society (BMUS) guidelines are the most stringent available [[84], [85], [86]].

2010年5月7日 · British Medical Ultrasound Society. Statement on the Use, and potential Hazards of Diagnostic Ultrasound. London: BMUS, 2007. See http://www. bmus.org/policies-guides (last checked 5 March 2010)

2020年12月2日 · Ultrasound users are advised to observe the ALARA (as low as reasonably achievable) principle, but studies have shown that most do not monitor acoustic output metrics. We developed an adaptive ultrasound method that could suggest acoustic output levels based on real-time image quality feedback using lag-one coherence (LOC).

This is the ALARA principle (i.e. as low as reasonably achievable). It is acknowledged, that in some situations it is reasonable to use higher output or longer examination times than in others: for example, the risks of missing a fetal anomaly must be weighed against the risk of harm from potential bioeffects.

We follow guidance issued by the BMUS (British Medical Ultrasound Society) guidelines for the safe use of diagnostic ultrasound equipment. We use modern equipment that is regularly serviced and follow the ALARA (As Low As Reasonably Possible) principle, which means scanning for no longer than is necessary to meet the scan objectives.

(ALARA principle). All unnecessary exposure to the human body should be avoided as it provides no medical benefit to outweigh any potential harm. In particular, ultrasound should not be used on pregnant women solely for ‘entertainment’ or ‘bonding’ purposes. Prepared by the Safety Group of the British Medical Ultrasound Society