Ibuki Mano

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Nambu PVA gel which is produced by repeated freezing and thawing of PVA solution has overcome almost all of the problems which present substances have: It is close to human soft tissue in MRI parameters. MRI parameters (1H density, T1, T2) are adjustable to some extent. It has appropriate physical characteristics. The important problem with PVA gel is(More)
High-speed low-resolution ADCs are widely used for various applications, such as 60GHz receivers, serial links, and high-density disk drive systems. Flash architectures have the highest conversion rate without employing time-interleaving. Moreover, flash architectures have the lowest latency, which is often required in feedback-loop systems. However, the(More)
This paper presents our ongoing project in which normal human anatomy and its quantitative data are systematically arranged in a computer. The final product, the Computerized Three-Dimensional Normal Atlas, will be able to supply tomographic images in any direction, 3-D images, and coded information on organs, e.g., anatomical names, CT numbers, and T1 and(More)
Nuclear magnetic resonance (NMR) imaging was used to evaluate the intracerebral changes over time in gerbils after unilateral carotid artery ligation. Each animal was imaged during one of three stated periods 3-28 hr after surgery and again after administration of dexamethasone, morphine, or naloxone, agents reported to affect the clinical outcome of(More)
To determine the efficacy of proton nuclear magnetic resonance (NMR) imaging in documenting acute ischemic infarction and to characterize the changes in these images during the first 24 hours following the ischemic insult, serial NMR imaging was performed in gerbils that had undergone unilateral carotid artery ligation. No significant changes in the signal(More)
The main purpose of this report is to describe our method of MRI tissue characterization studies, which consists of MR imaging of the patient, precision MR imaging of the excised organ, and pathological examination of the organ. We first made small coils to be used with conventional MRI scanners to examine the excised organs. In order to make it easier to(More)