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Related Experiment Video

Updated: Feb 17, 2026

Longitudinal In Vivo Imaging of the Cerebrovasculature: Relevance to CNS Diseases
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On the Reproducibility of Inversion Recovery Intravoxel Incoherent Motion Imaging in Cerebrovascular Disease.

S M Wong1,2, W H Backes1,2, C E Zhang3,2,4

  • 1From the Departments of Radiology and Nuclear Medicine (S.M.W., W.H.B., C.R.L.P.N.J., J.F.A.J.).

AJNR. American Journal of Neuroradiology
|December 9, 2017
PubMed
Summary

Inversion recovery-intravoxel incoherent motion imaging shows good reproducibility for measuring microvascular and parenchymal changes in cerebrovascular disease. This technique is clinically feasible for monitoring disease progression and treatment response.

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Area of Science:

  • Neuroimaging
  • Medical Physics
  • Radiology

Background:

  • Intravoxel incoherent motion (IVIM) imaging offers simultaneous measurement of microvascular and parenchymal abnormalities.
  • Cerebrospinal fluid (CSF) signal contamination can be mitigated using inversion recovery (IR) preparation.
  • Assessing the clinical feasibility of IR-IVIM imaging in cerebrovascular disease (CVD) is crucial.

Purpose of the Study:

  • To investigate the clinical feasibility of IR-IVIM imaging in patients with CVD.
  • To evaluate the reproducibility of IR-IVIM parameters in various brain tissues and lesions.
  • To determine the potential of IR-IVIM for monitoring disease progression and treatment response.

Main Methods:

  • Sixteen patients with CVD underwent repeated IR-IVIM imaging sessions.
  • Reproducibility of perfusion volume fraction (PVF) and parenchymal diffusivity (D) was assessed using coefficient of variation (CV), intraclass correlation coefficient (ICC), and repeatability coefficient (RC).
  • Regions of interest (ROIs) included normal-appearing white matter, cortex, deep gray matter, white matter hyperintensities, and vascular lesions.

Main Results:

  • PVF ranged from 2.42-3.97 × 10-2 and D from 7.20-9.11 × 10-4 mm2/s, with higher values in lesions.
  • CV was <3.70% in normal tissue and <9.15% in lesions.
  • ICC values were good to excellent (0.82–0.99) in most ROIs, except deep gray matter (0.66) and cortex (0.54). RC ranged from 0.15–0.96 × 10-2 for PVF and 0.10–0.37 × 10-4 mm2/s for D.

Conclusions:

  • IR-IVIM imaging demonstrated good reproducibility with low CV and high ICC in normal-appearing tissue and lesions in CVD patients.
  • The findings suggest that IR-IVIM imaging is clinically feasible for monitoring CVD progression and treatment efficacy.