Infarct Zone Measurement
Infarct Zone Measurement - Related Videos
03:15
Measuring the Infarct Zone and Brain Edema in a Rat Brain Following Middle Cerebral Artery Occlusion
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2025
This video demonstrates the assessment of the infarct zone and brain edema in brain slices from rats subjected to middle cerebral artery occlusion. Infarcted areas are identified using redox staining, while a blue filter and threshold function in image analysis software quantify the infarct zone and edema in the affected hemisphere.
08:41
Caspase-3 Activity in the Rat Amygdala Measured by Spectrofluorometry After Myocardial Infarction
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Cited by 20 •
2016
Myocardial infarction (MI) is not only followed by impaired cardiac function but also by apoptosis in the amygdala, a brain region involved in the behavioral consequences of MI. This protocol describes how to induce MI, collect amygdala tissue and measure caspase-3 activity, a marker of apoptosis, therein.
04:32
Measuring Post-Stroke Cerebral Edema, Infarct Zone and Blood-Brain Barrier Breakdown in a Single Set of Rodent Brain Samples
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Cited by 4 •
2020
This protocol describes a novel technique of measuring the three most important parameters of ischemic brain injury on the same set of rodent brain samples. Using only one brain sample is highly advantageous in terms of ethical and economic costs.
07:45
Acute Myocardial Infarction in Rats
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Cited by 103 •
2011
The rat model of acute myocardial infarction (AMI) is useful to study the consequence of a MI on cardiac pathophysiological and physiological function.
09:45
Histological Quantification of Chronic Myocardial Infarct in Rats
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Cited by 14 •
2016
The post-mortem assessment of myocardial infarction (MI) in rodents is based on quantification of the infarct on stained heart sections. We describe an accurate method to quantify the infarct size using systematic sampling of harvested rat hearts from base to apex and image analyses of trichrome-stained histological sections.
FAQs
The measurement begins by distinguishing damaged tissue from tissue that remains viable. Researchers can establish this boundary through histological staining or neuroimaging, depending on the experimental design. Once the boundary is defined, the lesion can be quantified as an area or volume, producing a structural measure that supports consistent comparisons of ischemic injury.
Expressing the lesion relative to the unaffected hemisphere helps account for variation in brain size and tissue dimensions among samples. This reference-based approach makes infarct estimates more comparable across experimental groups and time points. It is especially useful when researchers want to evaluate whether a treatment changes the extent of injury rather than simply compare raw measurements.
Repeated measurements across different time points can show how the structural extent of ischemic injury changes over time. Comparing these values helps researchers examine whether damage expands, remains limited, or differs between experimental groups. When paired with behavioral or functional outcomes, the measurements also help connect lesion progression with changes in nervous-system performance.
A typical workflow identifies the damaged and viable tissue boundary, measures the resulting lesion as an area or volume, and, when appropriate, expresses that value relative to the unaffected hemisphere. Researchers then compare the measurements across groups or time points. Histological staining and neuroimaging provide the principal approaches for establishing the tissue boundary.
This measurement is useful when a study compares treated and untreated experimental groups after ischemic injury. A smaller measured lesion can provide structural evidence that a strategy limited tissue damage, while group comparisons reveal whether the treatment changed injury extent. Researchers can strengthen interpretation by considering these structural results alongside behavioral or functional outcomes.
Structural lesion measurements provide a way to relate the amount of damaged brain tissue to observed behavioral or functional outcomes. Researchers can compare infarct area or volume with performance across experimental groups or time points. This combined analysis helps determine whether differences in function correspond to differences in tissue injury and supports broader interpretation of ischemic damage.