Hitachi Medical Systems America Inc.;
The EUB-525 is a mid-size ultrasound system with a full feature set. Capable of B-mode, M-mode, Doppler, color flow and color angiography it performs a variety of tasks in a simple and straightforward fashion. This system produces high quality images with excellent clarity and detail.

European Medicines Agency (EMA) is a decentralized body of the European Union with headquarters in Amsterdam.
'The EMEA began its activities in 1995, when the European system for authorizing medicinal products was introduced, providing for a centralized and a mutual recognition procedure. The EMEA has a role in both, but is primarily involved in the centralized procedure. Where the centralized procedure is used, companies submit one single marketing authorization application to the EMEA. A single evaluation is carried out through the Committee for Medicinal Products for Human Use (CHMP) or Committee for Medicinal Products for Veterinary Use (CVMP). If the relevant Committee concludes that quality, safety and efficacy of the medicinal product is sufficiently proven, it adopts a positive opinion. This is sent to the Commission to be transformed into a single market authorization valid for the whole of the European Union.'
'Its main responsibility is the protection and promotion of public and animal health, through the evaluation and supervision of medicines for human and veterinary use. The EMEA coordinates the evaluation and supervision of medicinal products throughout the European Union. The Agency brings together the scientific resources of the 25 EU Member States in a network of 42 national competent authorities. It cooperates closely with international partners, reinforcing the EU contribution to global harmonization.'

See also Class I II III Devices, Phase 1 2 3 4 Drug Trials, and Drug Development and Approval Process USA.

(FFT) The fast Fourier transformation is a particularly fast and efficient computational method of performing a Fourier transformation, which is the mathematical process by which raw data is processed into a usable image.
The fast Fourier transform analyzer is a common device that performs spectral analysis in ultrasound instruments. In this case, it displays different quadrature Doppler frequencies or reflector velocities when a sample volume cursor is used along time. The Doppler frequency is proportional to the spectral reflector velocity.

See also Proportionality Constant, and Sampling Rate.

A flowmeter is a device to measure velocity or volume of flow of liquids or gases passing a given point per unit of time.

See also Time of Flight.

The gain is a linear factor that is used in a device as a multiplier after calibration. The gain is the ratio of input to output in an amplifier. The sensitivity of a probe is adjusted by changing the gain.

See also Compress, and Reject.