14 Result(s)
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Article
Kaname Matsumura
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Article
Effects of atropine treatment on in vitro and in vivo binding of 4-[125I]-dexetimide to central and myocardial muscarinic receptors
Upregulation of muscarinic cholinergic receptors (mAChR) after chronic atropine treatment has been described previously. The present study was designed to evaluate 4-iodine-125 dexetimide as an agent to determ...
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Quantitative analysis of scatter- and attenuation-compensated dynamic single-photon emission tomography for functional hepatic imaging with a receptor-binding radiopharmaceutical
A new method for quantitative liver study was developed using the tracer technetium-99m diethylene triamine penta-acetic acid-galactosyl human serum albumin (99mTc-GSA), an analog ligand of the asialoglycoprotein...
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Relief of Mesenteric Ischemia by Z-Stent Placement into the Superior Mesenteric Artery Compressed by the False Lumen of an Aortic Dissection
In a 58-year-old man acute aortic dissection compromised the origin of the superior mesenteric artery (SMA), resulting in mesenteric ischemia. After failed balloon angioplasty a Gianturco Z-stent was placed. T...
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Characterization of neuronal damage by iomazenil binding and cerebral blood flow in an ischemic rat model
I-123-iomazenil is a SPECT probe for central benzodiazepine receptors (BZR) which may reflect intact cortical neuron density after ischemic insults. We evaluated whether neuronal damage in rats could be charac...
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Dynamic contrast-enhanced MR imaging of the entire breast with spectral-selective inversion fast three dimensional sequence
Dynamic contrast-enhanced images with high spatial and temporal resolutions were acquired with a fast 3D spoiled gradient echo (SPGR) sequence using spectral selective inversion recovery (IR) pulse. Five healt...
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Evaluation of asialoglycoprotein receptor imaging agent as a marker of hepatic ischemia-reperfusion injury and recovery
Protection of hepatocytes from ischemia-reperfusion injury is a clinically important issue. The purpose of this study was to evaluate changes in acute liver damage and recovery after ischemiareperfusion in rat...
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Early and delayed Tc-99m ECD brain SPECT in SLE patients with CNS involvement
We compared early and delayed Tc-99m ECD SPECT scans in 32 SLE patients (Group 1, definite neuropsychiatric disorders; Group 2, minor neurologic symptoms or normal) with those of normal controls by visual insp...
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Binding rate constant of Tc-99m DTPA galactosyl human serum albumin measured by quantitative dynamic SPECT —Clinical evaluation as a total and regional liver function test—
To evaluate the clinical utility of a new method with dynamic single photon emission computed tomography (SPECT) and scatter and attenuation compensation to estimate both total and regional liver function quan...
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Simple and low-cost tele-nuclear medicine conference system with the e-mail protocol
Purpose: Because of the recent innovative growth in computer technology, digital imaging, and the Internet, we can take advantage of these facilities for education and clinical work in nuclear medicine. We develo...
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Single photon emission computed tomography and statistical parametric map** analysis in cirrhotic patients with and without minimal hepatic encephalopathy
The early diagnosis and treatment of cognitive impairment in cirrhotic patients is needed to improve the patients’ daily living. In this study, alterations of regional cerebral blood flow (rCBF) were evaluated...
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Evaluation of Cingulate Gyrus Blood Flow in Patients With Liver Cirrhosis
Although neuropsychological tests are commonly applied to detect minimal hepatic encephalopathy (HE) in patients with liver cirrhosis (LC), they provide no information about the cerebral regions involved. Rece...
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Usefulness of fully automated constant ROI analysis software for the brain: 3DSRT and FineSRT
The positioning or selection of a region of interest (ROI) is an essential step for the quantification of brain images. However, so long as the ROIs were manually selected, results obtained fluctuated consider...
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2-[Fluorine-18]-fluoro-2-deoxy-d-glucose positron emission tomography/computed tomography versus whole-body diffusion-weighted MRI for detection of malignant lesions: initial experience
The new magnetic resonance whole body diffusion-weighted imaging with background body signal suppression (DWIBS) uses short tau inversion recovery-echo planar imaging sequence under normal respiration. DWIBS i...
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Diagnostic accuracy of FDG-PET cancer screening in asymptomatic individuals: use of record linkage from the Osaka Cancer Registry
Whole-body cancer screening with multimodalities including [18F]-fluorodeoxyglucose positron emission tomography (FDG-PET) detects a wide range of tumors. This program has been recognized as an option for opportu...
