J Korean Radiol Soc.  1994 Apr;30(4):613-619.

Gd-DTPA Enhanced MRI of the Brain Infarction: Correlation between Onset of Infarction and Enhancing Patterns

• Joo AY
• Kim MS
• Lee SS

Abstract

PURPOSE
To evaluate the correlation between onset of brain infarction and Gd-DTPA enhancing patterns on MRI.
MATERIALS AND METHODS
We reviewed MRI of 58 lesions in 45 patients with clinically documented brain infarction retrospectively. Axial, coronal and sagittal T1WI (TR/TE 450-520/20), T2WI (TR/TE 2190/90) and Gd-DTPA enhanced T1WI were performed with a 0.5T superconductive MR system. We analyzed Gd-enhancing patterns lhat were divided into intravascular, meningeal, and parenchymal enhancement. Parenchymal pattern was subdivided into mottled, partial ring like and dense enhancement.
RESULTS
lntravascular enhancement was seen at 1-10 days in 30(53%) of 58 infarctions. Meningeal enhancement (13%) was noted at 1--6 days. Parenchymal enhancement (50%) was seen at 2--28 days and subdividing patterns are as follows:The mottled enhancement pattern was seen earlier at 2-8 days and partial ring like or dense enhancement patterns at 5-28 days.
CONCLUSION
After reviewing Gd-enhanced MRI of infarction, the intravascular and meningeal enhancement patterns were earlier than parenchymal enhancement. Among parenchymal patterns, the mottled pattern was seen earlier than partial ring like or dense patterns. In conclusion, Gd-enhancing patterns of brain infarction are useful in estimating the age of infarction including acute infarction.

MeSH Terms

Brain Infarction*
Brain*
Gadolinium DTPA*
Humans
Infarction*
Magnetic Resonance Imaging*
Retrospective Studies
Gadolinium DTPA