Quantitative measurement of tissue perfusion and diffusion invivo
نویسندگان
چکیده
منابع مشابه
Characterizing tissue fate after transient cerebral ischemia of varying duration using quantitative diffusion and perfusion imaging.
BACKGROUND AND PURPOSE The purpose of this study was to investigate the effects of reperfusion on ischemic lesion evolution and pixel-by-pixel apparent diffusion coefficient-cerebral blood flow (ADC-CBF) dynamics of core and mismatch tissues after 35, 60, and 95 minutes of transient focal ischemia in rats (n=28). METHODS Serial diffusion-, perfusion-, and T2-weighted imaging were performed up...
متن کاملDynamic Tissue Perfusion Measurement – Basics and Applications
Perfusion is a fundamental prerequisite for all living tissues to meet their needs in terms of supply of oxygen, nutrients, hormones, messenger substances and other necessary dilutes. Dynamic Tissue Perfusion Measurement (DTPM) was developed to quantify the perfusion of tissues and organs by means of colour Doppler sonography. Perfusion is perceived as a certain amount of blood passing through ...
متن کاملRelationship between Baseline ECG Abnormalities and Quantitative Perfusion Parameters of Myocardial Perfusion Findings
Background: Coronary Artery Disease (CAD) is one of the major causes of mortality in most countries. Electrocardiography (ECG) and myocardial perfusion imaging (MPI) are non-invasive disgnostic tests for CAD. Finding a relationship between abnormal findings in the baseline ECG and MPI findings can be helpful in better diagnosis of CAD. Materials and Methods: The present study examined ECG of pa...
متن کاملRapid quantitative measurement of lung tissue phospholipids.
A rapid procedure for the separation of phospholipids of lung tissue into acidic and nonacidic fractions by means of diethylaminoethyl cellulose acetate microcolumns is described. The fractions are then resolved into individual phospholipids by thin-layer chromatography and quantified by transmission densitometry.
متن کاملAssessing tissue viability with MR diffusion and perfusion imaging.
BACKGROUND AND PURPOSE Diffusion- (DW) and perfusion-weighted (PW) MR imaging reflect neurophysiologic changes during stroke evolution. We sought to determine parameters that distinguish regions of brain destined for infarction from those that will survive despite hypoperfusion. METHODS DW and PW images were obtained in 30 patients at 1-12 hours after symptom onset. Relative cerebral blood vo...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 1991
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.1910170123