Enum: MRIModalityEnum

MRI imaging modalities and techniques

URI: valuesets:MRIModalityEnum

Permissible Values

Value	Meaning	Description
STRUCTURAL_T1	NCIT:C116455	High-resolution anatomical imaging with T1 contrast
STRUCTURAL_T2	NCIT:C116456	Structural imaging with T2 contrast
FLAIR	NCIT:C82392	T2-weighted sequence with CSF signal suppressed
BOLD_FMRI	NCIT:C17958	Functional MRI based on blood oxygenation changes
ASL	NCIT:C116450	Perfusion imaging using magnetically labeled blood
DWI	mesh:D038524	Imaging sensitive to water molecule diffusion
DTI	NCIT:C64862	Advanced diffusion imaging with directional information
PERFUSION_DSC	NCIT:C116459	Perfusion imaging using contrast agent bolus
PERFUSION_DCE	NCIT:C116458	Perfusion imaging with pharmacokinetic modeling
SWI	NCIT:C121377	High-resolution venography and iron detection
TASK_FMRI	NCIT:C178023	fMRI during specific cognitive or motor tasks
RESTING_STATE_FMRI	NCIT:C178024	fMRI acquired at rest without explicit tasks
FUNCTIONAL_CONNECTIVITY	NCIT:C116454	Analysis of temporal correlations between brain regions

Slots

Name	Description
mri_modality	MRI imaging modality type

Identifier and Mapping Information

Schema Source

• from schema: https://w3id.org/linkml/valuesets

LinkML Source

name: MRIModalityEnum
description: MRI imaging modalities and techniques
from_schema: https://w3id.org/linkml/valuesets
rank: 1000
permissible_values:
  STRUCTURAL_T1:
    text: STRUCTURAL_T1
    description: High-resolution anatomical imaging with T1 contrast
    meaning: NCIT:C116455
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: T1 relaxation
      typical_use:
        tag: typical_use
        value: anatomical reference, volumetric analysis
      tissue_contrast:
        tag: tissue_contrast
        value: good gray/white matter contrast
    title: T1-weighted structural MRI
    aliases:
    - High Field Strength Magnetic Resonance Imaging
  STRUCTURAL_T2:
    text: STRUCTURAL_T2
    description: Structural imaging with T2 contrast
    meaning: NCIT:C116456
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: T2 relaxation
      typical_use:
        tag: typical_use
        value: pathology detection, CSF visualization
      tissue_contrast:
        tag: tissue_contrast
        value: good fluid contrast
    title: T2-weighted structural MRI
    aliases:
    - Low Field Strength Magnetic Resonance Imaging
  FLAIR:
    text: FLAIR
    description: T2-weighted sequence with CSF signal suppressed
    meaning: NCIT:C82392
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: T2 with fluid suppression
      typical_use:
        tag: typical_use
        value: lesion detection, periventricular pathology
      advantage:
        tag: advantage
        value: suppresses CSF signal
    title: Fluid-attenuated inversion recovery
  BOLD_FMRI:
    text: BOLD_FMRI
    description: Functional MRI based on blood oxygenation changes
    meaning: NCIT:C17958
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: BOLD signal
      typical_use:
        tag: typical_use
        value: brain activation mapping
      temporal_resolution:
        tag: temporal_resolution
        value: seconds
    title: Blood oxygen level dependent fMRI
    aliases:
    - Functional Magnetic Resonance Imaging
  ASL:
    text: ASL
    description: Perfusion imaging using magnetically labeled blood
    meaning: NCIT:C116450
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: arterial blood labeling
      typical_use:
        tag: typical_use
        value: cerebral blood flow measurement
      advantage:
        tag: advantage
        value: no contrast agent required
    title: Arterial spin labeling
    aliases:
    - Arterial Spin Labeling Magnetic Resonance Imaging
  DWI:
    text: DWI
    description: Imaging sensitive to water molecule diffusion
    meaning: mesh:D038524
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: water diffusion
      typical_use:
        tag: typical_use
        value: stroke detection, fiber tracking
      parameter:
        tag: parameter
        value: apparent diffusion coefficient
    title: Diffusion-weighted imaging
  DTI:
    text: DTI
    description: Advanced diffusion imaging with directional information
    meaning: NCIT:C64862
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: directional diffusion
      typical_use:
        tag: typical_use
        value: white matter tractography
      parameters:
        tag: parameters
        value: fractional anisotropy, mean diffusivity
    title: Diffusion tensor imaging
  PERFUSION_DSC:
    text: PERFUSION_DSC
    description: Perfusion imaging using contrast agent bolus
    meaning: NCIT:C116459
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: contrast agent dynamics
      typical_use:
        tag: typical_use
        value: cerebral blood flow, blood volume
      requires:
        tag: requires
        value: gadolinium contrast
    title: Dynamic susceptibility contrast perfusion
    aliases:
    - Secretin-Enhanced Magnetic Resonance Imaging
  PERFUSION_DCE:
    text: PERFUSION_DCE
    description: Perfusion imaging with pharmacokinetic modeling
    meaning: NCIT:C116458
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: contrast enhancement kinetics
      typical_use:
        tag: typical_use
        value: blood-brain barrier permeability
      analysis:
        tag: analysis
        value: pharmacokinetic modeling
    title: Dynamic contrast-enhanced perfusion
    aliases:
    - Multiparametric Magnetic Resonance Imaging
  SWI:
    text: SWI
    description: High-resolution venography and iron detection
    meaning: NCIT:C121377
    annotations:
      contrast_mechanism:
        tag: contrast_mechanism
        value: magnetic susceptibility
      typical_use:
        tag: typical_use
        value: venography, microbleeds, iron deposits
      strength:
        tag: strength
        value: high field preferred
    title: Susceptibility-weighted imaging
  TASK_FMRI:
    text: TASK_FMRI
    description: fMRI during specific cognitive or motor tasks
    meaning: NCIT:C178023
    annotations:
      paradigm:
        tag: paradigm
        value: stimulus-response
      typical_use:
        tag: typical_use
        value: localization of brain functions
      analysis:
        tag: analysis
        value: statistical parametric mapping
    title: Task-based functional MRI
    aliases:
    - Task Functional Magnetic Resonance Imaging
  RESTING_STATE_FMRI:
    text: RESTING_STATE_FMRI
    description: fMRI acquired at rest without explicit tasks
    meaning: NCIT:C178024
    annotations:
      paradigm:
        tag: paradigm
        value: no task
      typical_use:
        tag: typical_use
        value: functional connectivity analysis
      networks:
        tag: networks
        value: default mode, attention, executive
    title: Resting-state functional MRI
    aliases:
    - Resting Functional Magnetic Resonance Imaging
  FUNCTIONAL_CONNECTIVITY:
    text: FUNCTIONAL_CONNECTIVITY
    description: Analysis of temporal correlations between brain regions
    meaning: NCIT:C116454
    annotations:
      analysis_type:
        tag: analysis_type
        value: connectivity mapping
      typical_use:
        tag: typical_use
        value: network analysis
      metric:
        tag: metric
        value: correlation coefficients
    title: Functional connectivity MRI
    aliases:
    - Functional Connectivity Magnetic Resonance Imaging