The influence of diffusion- and relaxation-related factors on signal intensity: An introductive guide to magnetic resonance diffusion-weighted imaging studies

Stefano Colagrande, Giacomo Belli, Letterio Salvatore Politi, Lorenzo Mannelli, Filippo Pasquinelli, Natale Villari

Research output: Contribution to journalArticle

Abstract

In magnetic resonance diffusion-weighted imaging, signal intensity is influenced simultaneously by temperature, diffusivity, b value, pseudodiffusion, macroscopic motion, and T2-weighted intensity value. The purpose of this pictorial essay is to discuss and exemplify the influence that such factors and the related modifications have on signal intensity. Apparent diffusion coefficient, shine-through and pseudodiffusion will also be examined to show how T2-weighted signal intensity value and nondiffusional intravoxel incoherent motion can affect the diffusion-weighted imaging.

Original languageEnglish
Pages (from-to)463-474
Number of pages12
JournalJournal of Computer Assisted Tomography
Volume32
Issue number3
DOIs
Publication statusPublished - May 2008

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Diffusion Magnetic Resonance Imaging
Temperature

Keywords

  • Apparent diffusion coefficient
  • Diffusion-weighted imaging
  • Intravoxel incoherent motion
  • Lack of mobile spin effect
  • Pseudodiffusion
  • Shine-through effect

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

The influence of diffusion- and relaxation-related factors on signal intensity : An introductive guide to magnetic resonance diffusion-weighted imaging studies. / Colagrande, Stefano; Belli, Giacomo; Politi, Letterio Salvatore; Mannelli, Lorenzo; Pasquinelli, Filippo; Villari, Natale.

In: Journal of Computer Assisted Tomography, Vol. 32, No. 3, 05.2008, p. 463-474.

Research output: Contribution to journalArticle

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