pulse sequence


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

pulse sequence

in magnetic resonance imaging, a series of changes in the induced magnetic field, which include the phase and frequency-encoding gradients and read-out functions.

pulse sequence

the sequence of radiofrequency pulses and magnetic gradients used to generate a magnetic resonance image.

pulse sequence

An MRI term for a preselected set of defined radio frequency and gradient pulses, which are repeated multiple times during a scan, through which the time intervals between pulses and the amplitude and shape of the gradient waveforms control NMR signal reception and affect the characteristics of the resulting images.

pulse se·quence

(pŭls sē'kwĕns)
magnetic resonance imaging A series of changes in the induced magnetic field, which includes the phase and frequency-encoding gradients and read-out functions.
References in periodicals archive ?
used iron oxide contrast agent in the pulse sequence spin echo (SE) and GE.
Caption: FIGURE 2: Different implementations of ASL pulse sequence for MR, continuous (CASL), pulsed (PASL), and pseudo-continuous (pCASL) technique.
31) Using a fast FLAIR pulse sequence, lesions consistent with MS plaques were seen in 43% of patients whose brains appeared normal on conventional [T.
Each pulse sequence has a tendency to give best outcome by an appropriate choice of parameters.
The work of the pulsed artificial neural network is tested by giving into the inputs the pulse sequences which corresponding values differ by 2.
The 3D FRFSE- XL is a 3D FSE (Fast Spin Echo) pulse sequence which operate swith the respiratory triggering, ASSET (Arraycoil Spatial Sensitivity Encoding Technique) and facilitates fast recovery.
Normally the input measured events are not synchronized with the periodic sampling pulse sequence of an event timer.
The navigator echo can be added to any pulse sequence to decrease motion artifact.
Although uncommon, various adrenal masses can mimic adrenal adenomas, mainly due to low attenuation on CT or the signal loss on out-of-phase MR pulse sequences compared to in-phase sequences.
The next step is to choose an appropriate pulse sequence.
Dependence of enhancement on field strength and MR pulse sequence.
Inversion recovery pulse sequences nullify signal from specific tissue based on the tissue's T1 relaxation time.