Basic Investigation of a Cerebral Blood Flow Quantification Method without Blood Sampling Method (Improved Brain Uptake Ratio (IBUR)) Using a Fan-beam Collimator
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چکیده
منابع مشابه
Usefulness of an Automatic Quantitative Method for Measuring Regional Cerebral Blood Flow Using 99mTc Ethyl Cysteinate Dimer Brain Uptake Ratio
Objective(s): Improved brain uptake ratio (IBUR), employing 99mTc-ethyl cysteinate dimer (99mTc-ECD), is an automatic non-invasive method for quantitatively measuring regional cerebral blood flow (rCBF). This method was developed by the reconstruction of the theory and linear regression equation, based on rCBF measurement by H215O positron emission tomography. Clarification of differences in r...
متن کامل[Measurements of cerebral blood flow by the noninvasive microsphere method with 123I-IMP and fan beam collimator: comparison with the continuous arterial blood sampling method].
PURPOSE AND METHODS The noninvasive microsphere (NIMS) method quantifies cerebral blood flow with N-isopropyl-p-[123I]-iodoamphetamine (123I-IMP) without blood sampling of a patient, but when a fan beam collimator is used for collecting raw data in single photon emission computed tomography (SPECT), the procedure is complicated because we have to change the collimator. In phantom and clinical s...
متن کاملUsefulness of an Automatic Quantitative Method for Measuring Regional Cerebral Blood Flow Using 99mTc Ethyl Cysteinate Dimer Brain Uptake Ratio
OBJECTIVES Improved brain uptake ratio (IBUR), employing (99m)Tc-ethyl cysteinate dimer ((99m)Tc-ECD), is an automatic non-invasive method for quantitatively measuring regional cerebral blood flow (rCBF). This method was developed by the reconstruction of the theory and linear regression equation, based on rCBF measurement by H2 (15)O positron emission tomography. Clarification of differences i...
متن کاملImproved Method for Noninvasive Measurement of Regional Cerebral Blood Flow
A clinical method for noninvasive measurement of regional cerebral blood flow (rCBF) and blood volume (rCBV) is described, based on Obrist's 10 minute, desaturation method after 1 minute inhalation of Xe. Sixteen collimated probes are placed over both hemispheres and brain stem-cerebellar regions. End-tidal Xe curves are used for correction of recirculation. KEV discriminators are set to record...
متن کاملA Nonlinear Variational Method for Improved Quantification of Myocardial Blood Flow Using Dynamic H2O PET
H2O as a PET-tracer offers the opportunity to examine perfusion of blood into tissue non-invasively (cf. [1]). It features a short radioactive half-life (≈ 2 min.) and therefore adds a smaller radiation exposure to the patient in comparison to other tracers. The disadvantages arising from the short radioactive half-life are noisy, low-resolution reconstructions. Previous algorithms first recons...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 2018
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.2018_jsrt_74.11.1302