BACKGROUND AND PURPOSE Measuring blood pressure (stump pressure) in the distal internal carotid artery during occlusion of the internal carotid artery is reportedly a reliable safety index with which to predict ischemia following permanent occlusion of the internal carotid artery. We compared the stump pressure during occlusion of the internal carotid artery with single-photon emission CT (SPEC...

This study aimed to prepare a novel radiopharmaceutical for the detection of brain disorders at early stages in susceptible patients.Promazine hydrochloride was labeled with 125I by direct electrophilic substitution reaction high labeling yields 92.6 ± 3.24 %. The yield and vitro stability 125I-promazine were determined paper electrophoresis, chromatography (PC) High performance liquid (HPLC). ...

OBJECTIVE There are no previous studies using single photon emission computed tomography (SPECT) scans in somatization disorder (SD) patients. The aim of this paper is to assess SPECT imaging abnormalities in SD patients and study any relation to laterality. METHOD Eleven SD patients from the Somatization Disorder Unit of Miguel Servet University Hospital, Zaragoza, Spain, not fulfilling crit...

The encephalitis associated with antibodies (Ab) against the N-Methyl-D-Aspartate Receptor (NMDAR) was first discovered in 2007 [1]. Since then, there have been several reports on clinical features and diagnostic tools for better understanding the pathophysiology of this disease. Magnetic Resonance Imaging (MRI), Magnetic Resonance Spectroscopy (MRS), Electroencephalogram (EEG), Fluoro-2-DeoxyD...

Although patients suffering from major depression respond to antidepressant treatment within several weeks, full reinstatement of premorbid capabilities requires much longer. Nevertheless, most research in major depression seeking the pathophysiological correlates of remission has focused upon the acute post-treatment period. Brain imaging research offers no exception. We have recently shown th...

Neuroacanthocytosis syndromes (NA) include autosomal recessive chorea-acanthocytosis and X-linked McLeod syndrome consisting of a choreatic movement disorder, psychiatric manifestations and cognitive decline, and additional multi-system features including myopathy and axonal neuropathy. Fluor 18 -2-fluoro-2-deoxyglucose (18F-FDG-PET) positron emission tomography (PET) and technetium 99m -d, l-h...

Objective: The purpose of this study was to investigate if an octadecyl (18C) minicolumn could be applied successfully for quality control of 99mTc exametazime (HMPAO). Methods: The 18C column system using saline eluent was validated against the Whatman 17 method in calculating the percent radiochemical purity of 99mTc-HMPAO. The behavior of 99mTc-pertechnetate (TcO4) and hydrolyzed-reduced 99m...

OBJECTIVE The purpose of this study was to investigate if an octadecyl (18C) minicolumn could be applied successfully for quality control of 99mTc exametazime (HMPAO). METHODS The 18C column system using saline eluent was validated against the Whatman 17 method in calculating the percent radiochemical purity of 99mTc-HMPAO. The behavior of 99mTc-pertechnetate (99mTc04-) and hydrolyzed-reduced...

W e want to report an error in interpreting d,l-hexamethylpropylene amine oxime (HMPAO) tomograms as cerebral blood flow (CBF) in subacute ischemic stroke cases. By simultaneously studying CBF by `33Xe dynamic single-photon emission computed tomography (SPECT), an obvious discrepancy was noted in that the HMPAO tomograms grossly exaggerated the reflow hyperemia following spontaneous reperfusion...