Titlebook: Cardiovascular MR Manual; Sven Plein,John Greenwood,John P. Ridgway Book 2015Latest edition Springer International Publishing 2015 CMR.Cli

Projection

ic field.Complex subject conveyed in simplified, portable foThe book provides an introduction to CMR imaging that is understandable and focused on the relevant information needed to using CMR imaging in clinical practice. Cardiovascular magnetic resonance (CMR) imaging has become an established imag

FLUSH

Panther

What’s Inside the Magnet and Why?c field that can be rapidly switched on and off and a radiofrequency (RF) magnetic field. A typical MRI system therefore consists of three main components that generate these three fields; the main magnet, the gradient coil assembly and the integral rf body transmitter coil. The most common main mag

到婚嫁年龄

完成

Protons and Spins: The Origin of the MR Signalty known as Nuclear Spin. This combined with the proton’s positive charge gives rise to a small magnetic field, known as a magnetic moment. In the presence of the externally applied B. field, the magnetic moments tend to align either with or against the externally applied magnetic field. An equilibr

死亡率

Generating a Signal: RF Pulses and Echoesns at the Larmor Frequency. The Larmor frequency (resonant frequency) is proportional to the strength of the magnetic field and is typically in the Megahertz range. The RF field is normally applied as a short pulse, known as an rf pulse. When it is applied, the proton magnetic moments start to rotat