What question did this study set out to answer?

To evaluate laser speckle flowmetry as a noninvasive, high-resolution imaging tool for measuring dynamic two-dimensional cerebral blood flow through an intact skull in normal and ischemic mice.

June 22, 2004Journal of Cerebral Blood Flow & Metabolism

Laser Speckle Flowmetry for the Study of Cerebrovascular Physiology in Normal and Ischemic Mouse Cortex

View Full Paper

Ask AI

Bookmark

Authors

CACenk AyataMassachusetts General Hospital ADAndrew K. DunnThe University of Texas at Austin YÖYasemin ÖzdemirKoç University

Discussion

Member takes

Implication

Preclinical imaging study demonstrates high-resolution mapping of cerebral blood flow through intact mouse skull, highlighting laser speckle flowmetry as a robust tool for stroke research.

Key Points

To evaluate laser speckle flowmetry as a noninvasive, high-resolution imaging tool for measuring dynamic two-dimensional cerebral blood flow through an intact skull in normal and ischemic mice.
Imaged spatiotemporal cerebral blood flow through intact mouse skulls using laser speckle flowmetry during whisker stimulation and 5% CO2 inhalation, bench-marking against laser-Doppler flowmetry.
Calibrated resting cerebral blood flow against [14C]iodoamphetamine autoradiography and assessed autoregulatory responses across varying mean arterial pressures.
Performed distal middle cerebral artery ligation to map hemodynamic changes and spatial distributions within moderate to severely ischemic cortex.
Peak cerebral blood flow increases during whisker stimulation correlated closely with laser-Doppler flowmetry, showing greater increases in middle cerebral artery branches than in capillary beds.
Autoregulation thresholds were identified at mean arterial pressures of 40 mm Hg (lower limit) and 110 mm Hg (upper limit), with 1/τc values demonstrating a linear relationship with resting blood flow.
Laser speckle flowmetry successfully mapped distinct spatial hemodynamics across moderate and severely ischemic cortex following distal middle cerebral artery occlusion.

Cite This Study

Ayata et al. (2004) studied this question.

synapsesocial.com/papers/6a0f2ec4a00258d2006ca472 https://doi.org/10.1097/01.wcb.0000122745.72175.d5

View Full Paper

Ask AI

Bookmark

Implication

Preclinical imaging study demonstrates high-resolution mapping of cerebral blood flow through intact mouse skull, highlighting laser speckle flowmetry as a robust tool for stroke research.

Laser Speckle Flowmetry for the Study of Cerebrovascular Physiology in Normal and Ischemic Mouse Cortex

Discussion

Member takes

Implication

Key Points

Cite This Study

Laser Speckle Flowmetry for the Study of Cerebrovascular Physiology in Normal and Ischemic Mouse Cortex

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider