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[Perfusion studies with paramagnetic contrast media and rapid pulse sequences in cerebrovascular diseases and brain
G Schuierer1, P Reimer, A Tigges
1Institut für Klinische Radiologie, Westfälische Wilhelms-Universität Münster.
Abstract:
The combination of fast MR sequences and rapid i.v. injection of paramagnetic contrast media provides information on cerebral perfusion. MR-perfusion imaging primarily depicts the relative cerebral blood volume. The aim of this study was to test whether MR-perfusion imaging with a clinical MR scanner using a standard 2D-FLASH sequence provides clinically relevant information on patients with cerebrovascular diseases and brain tumors. Brain infarctions, lesions in cerebral microangiopathy and occlusions of the carotid artery with very poor collateralization showed definite differences in perfusion imaging compared with normal controls. However, our results show that acceleration of the imaging sequence and optimization of the contrast bolus and data processing are prerequisites for the clinical use of this method, which in principle may provide information on the absolute cerebral blood volume and even blood flow.
Insights
MR-perfusion imaging can reveal differences in cerebral blood volume for patients with cerebrovascular diseases. Optimization of imaging techniques is crucial for its clinical application in assessing brain perfusion.
Area of Science:
- Neuroimaging
- Cerebrovascular Diseases
- Medical Physics
Context:
- Cerebral perfusion imaging using Magnetic Resonance (MR) techniques offers insights into brain blood supply.
- Fast MR sequences combined with contrast media enhance the assessment of cerebral blood volume.
Purpose:
- To evaluate the clinical relevance of MR-perfusion imaging for patients with cerebrovascular diseases and brain tumors.
- To determine if standard 2D-FLASH sequences on clinical MR scanners can provide diagnostic information.
Summary:
- MR-perfusion imaging demonstrated significant differences in cerebral blood volume in patients with brain infarctions, cerebral microangiopathy, and severe carotid artery occlusions compared to healthy individuals.
- The study highlights the potential of MR-perfusion imaging to assess absolute cerebral blood volume and blood flow.
Impact:
- Findings suggest MR-perfusion imaging is a valuable tool for diagnosing and characterizing cerebrovascular conditions.
- Further advancements in imaging sequence acceleration and data processing are necessary for widespread clinical adoption.