Neuroimaging Services Glossary

Ultrafast MRI acquisition technique that fills k-space using multiple gradient echoes after a single RF excitation, enab...

Echo-planar imaging pulse sequence used for rapid brain image acquisition in functional MRI.

Fluorodeoxyglucose positron emission tomography imaging that measures brain glucose metabolism.

Magnetic field intensity of an MRI scanner, measured in Tesla, that affects image quality and capabilities.

Fluid-attenuated inversion recovery MRI sequence that suppresses cerebrospinal fluid signal while maintaining T2-weighte...

The angle through which the net magnetization vector is rotated away from equilibrium by a radiofrequency pulse in MRI,...

Functional magnetic resonance imaging that measures brain activity by detecting blood oxygen changes.

A DTI metric ranging from 0 to 1 that quantifies the degree of directional water diffusion within tissue microstructure.

Increased signal intensity on T1-weighted MRI following intravenous gadolinium-based contrast agent administration, indi...

Proliferation and hypertrophy of glial cells in response to CNS injury, appearing as increased T2/FLAIR signal without m...

MRI hardware component that creates spatially varying magnetic fields for image encoding.

The computational process of aligning multiple neuroimaging datasets to a common spatial coordinate system for compariso...

The period between epileptic seizures when patients appear neurologically normal, crucial for baseline neuroimaging comp...

Continuous measurement of pressure within the cranial vault using invasive sensors or non-invasive imaging methods.

The precise placement of the imaging target at the geometric center of the MRI scanner's magnetic field for optimal imag...

Three-dimensional image elements with equal dimensions in all spatial directions, enabling accurate volumetric measureme...

Mathematical representation of MRI data in spatial frequency domain before Fourier transformation to create images.

A small deep brain infarct typically less than 15mm diameter, resulting from occlusion of penetrating arterioles.

Quantitative measure of total disease burden based on lesion volume or count in neuroimaging studies.

MRI technique that measures the exchange of magnetization between free water protons and macromolecules, providing tissu...

Quantitative measure of macromolecular content derived from magnetization transfer imaging sequences.

Image distortion caused by patient movement during neuroimaging acquisition.

Integration of multiple neuroimaging techniques to provide complementary information about brain structure and function.

Rhythmic, synchronized electrical activity in neural networks that can be detected and analyzed through neuroimaging tec...