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Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
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Related Experiment Video

Updated: May 14, 2026

Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia
10:35

Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia

Published on: September 20, 2015

Cerebral perfusion imaging.

Aaron R Hochberg1, Geoffrey S Young

  • 1Section of Neuroradiology, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

Seminars in Neurology
|January 31, 2013
PubMed
Summary
This summary is machine-generated.

Advanced CT and MRI techniques now reveal microscopic brain details, improving diagnoses for stroke and tumors. CT perfusion imaging offers significant patient safety benefits with minimal radiation risk.

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Imaging Vital and Non-vital Brain Pericytes in Brain Slices following Subarachnoid Hemorrhage
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Last Updated: May 14, 2026

Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia
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Imaging Vital and Non-vital Brain Pericytes in Brain Slices following Subarachnoid Hemorrhage
05:11

Imaging Vital and Non-vital Brain Pericytes in Brain Slices following Subarachnoid Hemorrhage

Published on: August 18, 2023

Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Traditional brain imaging (CT, MRI) focuses on gross pathology.
  • Microscopic-scale diagnostic information is becoming increasingly available.
  • Physiologic imaging techniques are crucial for diagnosing conditions like stroke and brain tumors.

Purpose of the Study:

  • To highlight recent advances in CT and MRI for brain imaging.
  • To emphasize the integration of microscopic and physiologic data into diagnostics.
  • To assess the benefits and risks of advanced imaging techniques.

Main Methods:

  • Utilizing advanced computed tomography (CT) and magnetic resonance imaging (MRI) capabilities.
  • Incorporating MR perfusion weighted imaging and MR diffusion imaging.
  • Leveraging volume scanning CT technology for simultaneous CT perfusion and CT angiography (CTA).

Main Results:

  • CT and MRI now provide microscopic-scale diagnostic information.
  • MR perfusion and diffusion imaging are essential for stroke and brain tumor diagnosis.
  • Advanced CT technology enables simultaneous perfusion and CTA with minimal radiation increase.

Conclusions:

  • Advanced CT and MRI significantly enhance diagnostic capabilities for brain conditions.
  • CT perfusion imaging offers substantial patient safety benefits, especially in acute stroke and subarachnoid hemorrhage.
  • Further research is needed to optimize the clinical application of these advanced imaging techniques.