Quantitative perfusion
Original Article Comparative analysis of arterial spin labeling and dynamic susceptibility contrast perfusion imaging for quantitative perfusion measurements of brain tumors
... 3D-ASL perfusion MRI could be a better choice to monitor and follow-up brain tumor ...3D-ASL perfusion MRI in distinguishing pediatric high-grade and low-grade tumors [10] would benefit pediatric patients ...
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Qualitative and Quantitative Perfusion Parameters Determined by 3D Single Shot GRASE ASL MR Imaging
... the perfusion may be sufficient, however, the transit time can be de- layed resulting in an underestimation of the regional cerebral blood flow, if time between labeling and meas- urement is not long enough to ...
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Feasibility of high resolution quantitative perfusion analysis in patients with heart failure
... An experienced operator, blinded to visual assessment and other clinical data, performed quantitative analysis using software and methods developed and previously validated against phantom and PET data [19,20]. ...
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Brain Perfusion in Children: Evolution With Age Assessed by Quantitative Perfusion Computed Tomography
... tional normal investigations. However, they were admitted for suspicion of a pathologic condition, most often mild head trauma or headaches. The re- percussion of head trauma on brain perfusion in the acute phase ...
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Quantitative three dimensional cardiovascular magnetic resonance myocardial perfusion imaging in systole and diastole
... for quantitative perfusion CMR in clinical practice and therefore demon- strating the feasibility of 3D whole-heart coverage and quantification is ...of quantitative perfusion ...for ...
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Perfusion CT in Acute Ischemic Stroke: A Qualitative and Quantitative Comparison of Deconvolution and Maximum Slope Approach
... compares quantitative perfusion measurements, their accuracy is, in general, limited because PCT values are dependent on a number of factors such as tube settings (cur- rent, voltage, thickness, scanning ...
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Effect of Slice Thickness Reconstruction on Quantitative Vascular Parameters in Perfusion CT
... fluences quantitative perfusion CT ...90-second perfusion study was performed after intrave- nous bolus injection of contrast ...in perfusion parameter measurements at different slice ...
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Quantitative assessment of magnetic resonance derived myocardial perfusion measurements using advanced techniques: microsphere validation in an explanted pig heart system
... MR perfusion acquisitions were shown to offer greater visual diagnostic accuracy at ...that perfusion gradients between subendocardial and subepicardial perfusion can be detected using low spatial ...
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Effects of Increased Image Noise on Image Quality and Quantitative Interpretation in Brain CT Perfusion
... in quantitative perfusion parameters or image ...Nevertheless, quantitative differences were small, high- lighting a very limited dose dependency in CTP parameters within a certain dose ...
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Microvascular ischemia in hypertrophic cardiomyopathy: new insights from high resolution combined quantification of perfusion and late gadolinium enhancement
... high-resolution perfusion quantification could be more sensitive for the diagnosis of microvascular ischemia by avoiding spatial averaging of the data or arbitrary assumptions on the distribution of ischemia ...on ...
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Comparison of methods for quantitative analysis of dynamic susceptibility contrast enhanced brain perfusion MRI
... Quantitative perfusion measurements may be derived by different postpro- cessing methods [18]. Most methods demand for user-selected parameters which may lead to variation in quantitative ...
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Differentiating Atypical Hemangiomas and Metastatic Vertebral Lesions: The Role of T1 Weighted Dynamic Contrast Enhanced MRI
... of perfusion parameters, vessels, venous structures, and vertebral body endplates were carefully excluded from the ...of quantitative perfusion pa- rameters, including vascular permeability and ...
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Differences in CT Perfusion Summary Maps for Patients with Acute Ischemic Stroke Generated by 2 Software Packages
... software packages. A summary map uses CBV, CBF, and MTT maps in a single depiction that quantitatively describes both infarct core and penumbra area. Such summary maps are now commonly presented in commercial software ...
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Imaging the Landmarks of Vascular Recovery
... highlights perfusion as a series of 10 mm × 15 mm vertical cross-sections of ischemic tissue imaged using ...ligation, perfusion generally appears strong, except for the distal regions of the limb where the ...
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FLASH proton density imaging for improved surface coil intensity correction in quantitative and semi quantitative SSFP perfusion cardiovascular magnetic resonance
... For the semi-quantitative analysis, the endocardial and epicardial borders of the perfusion images were manually traced and registered. The myocardial regions of interest were divided into six ...
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Platelet bio-nanobubbles as microvascular recanalization nanoformulation for acute ischemic stroke lesion theranostics
... area. Quantitative blood flow was immediately assessed following PBS, PMVs, and PNBs injection at 30, 60, and 120 ...The quantitative ratio of stroke lesion to normal brain area in the PNBs group (Figure ...
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Theoretic Basis and Technical Implementations of CT Perfusion in Acute Ischemic Stroke, Part 1: Theoretic Basis
... of the unenhanced head CT images from the CTA-SI should, therefore, result in quantitative CBV-weighted maps. This is appealing in clinical practice because CTA-SI subtraction maps, unlike first-pass CTP maps, can ...
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Relationship between quantitative parameters of lumbar vertebral perfusion and bone mineral density (BMD) in postmenopausal women
... blood perfusion and its likely causes: A quantitative dynamic contrast-enhanced MR imag- ing study of a rat osteoporosis ...marrow perfusion in lumbar vertebra following bilateral oophorectomy: An MR ...
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Original Article Ischemia-reperfusion model in rat spinal cord: cell viability and apoptosis signaling study
... of viable cells. After decapitation of the ani- mals, the spinal cord section was subjected to 400 mM with the aid of a tissue cutter and after processing in the perfusion chamber, the slices were incubated at ...
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Adipose derived mesenchymal stem cells transplantation via portal vein improves microcirculation and ameliorates liver fibrosis induced by CCl4 in rats
... We performed CT perfusion scan after treatment pro- tocols. HPI were significantly decreased in rats receiving ADMSCs from portal vein (Group B), while PVP and TLP were significantly increased (p < 0.05) ...
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