Kazunari Ishii, Toshihide Ogawa, Jun Hatazawa, Iwao Kanno, A Inugami, Hideaki Fujita, Eku Shimosegawa, Matsutaro Murakami, Toshio Okudera, Kazuo Vemura,
Ishii, Kazunari; Ogawa, Toshihide; Hatazawa, Jun; Kanno, Iwao; Inugami, Atsushi; Fujita, Hideaki; Shimosegawa, Eku; Murakami, Matsutaro; Okudera, ...
Tópico(s): Amoebic Infections and Treatments
1993 - Lippincott Williams & Wilkins | Journal of Computer Assisted Tomography
Eku Shimosegawa, A Inugami, Toshio Okudera, J Hatazawa, T. Ogawa, Hideaki Fujita, H. Toyoshima, K. Uemura,
... first 3 hours after onset.E Shimosegawa, A Inugami, T Okudera, J Hatazawa, T Ogawa, H Fujita, ...
Tópico(s): Acute Ischemic Stroke Management
1993 - American Roentgen Ray Society | American Journal of Roentgenology
Toshihide Ogawa, A Inugami, Hiroshi Fujita, Jun Hatazawa, Eku Shimosegawa, Kyo Noguchi, Toshio Okudera, Iwao Kanno, Kazunori Uemura, Akira Suzuki,
... subarachnoid hemorrhage: comparison with CT.T Ogawa, A Inugami, H Fujita, J Hatazawa, E Shimosegawa, K Noguchi, ...
Tópico(s): Cerebrospinal fluid and hydrocephalus
1995 - American Roentgen Ray Society | American Journal of Roentgenology
Toshihide Ogawa, Kazuo Uemura, Iwao Kanno, F Shishido, A Inugami, Tatsuo Yamaguchi, Matsutaro Murakami, Kenji Hirata, TOSHIO KATO, Katsuyoshi Mineura, Masayoshi Kowada,
OGAWA, T., UEMURA, K., KANNO, I., SHISHIDO, F., INUGAMI, A., YAMAGUCHI, T., MURAKAMI, M., HIRATA, K., KATO, ...
Tópico(s): Radiopharmaceutical Chemistry and Applications
1988 - Tohoku University | The Tohoku Journal of Experimental Medicine
Francis J. Haddy, Joyce I. Molnar, Craig W. Borden, E. Clinton Texter,
... Tomura N, Kato T, Kanno I, Shishido F, Inugami A, Uemura K, Higano S, Fujita H, Mineura ...
Tópico(s): Renal and Vascular Pathologies
1962 - Lippincott Williams & Wilkins | Circulation
Eric T. MacKenzie, J. K. Farrar, W. Fitch, David I. Graham, Peggy Gregory, A. M. Harper,
... Murakami M, Iida H, Miura S, Shishido F, Inugami A and Sayama I (2016) Oxygen Extraction Fraction ...
Tópico(s): Cerebrospinal fluid and hydrocephalus
1979 - Lippincott Williams & Wilkins | Stroke
S Amino, Kimihiko Abe, Taisuke Komori, Kohji Kawana, Y Oizumi, Yoshio Ishisaki, A Inugami, S Okamoto, H Funatsu, Kenkichi Oho, Yoshihiro Hayata,
放射線治療を行った原発性肺癌症例のうち各々の目的とする放射線治療が完了された症例は641例であり, 今回は手術と放射線照射の併用治療を行った271例について, 肺癌の臓器特殊性である組織型の多様性, 悪性度, 病巣の発生部位および病期などの差により手術との併用治療が予後に対していかなる効果を示すかについて検討を試み, 各病型に対して適正なる併用治療方法を確立し, 今後の肺癌治療成績向± に寄与せんと本研究を行った.
Tópico(s): Metastasis and carcinoma case studies
1979 - The Japan Lung Cancer Society | Haigan
Gerald Wisenberg, H.R. Schelbert, E.J. Hoffman, Michael E. Phelps, G. D. Robinson, Carl Selin, John Child, David J. Skorton, Dietmar Kuhl,
... Murakami M, Takahashi K, Ono Y, Shishido F, Inugami A and Tomura N (1988) Measurement of absolute ...
Tópico(s): Medical Imaging Techniques and Applications
1981 - Lippincott Williams & Wilkins | Circulation
Kaneyoshi Ishihara, Akio Miyasita, Maki Inugami, Kazuhiko Fukuda, Katsuo Yamazaki, Yo Miyata,
The present study investigated some differences between ‘morning’ and ‘evening’ types in life habits, particularly concerning meals, ingestion of caffeine and alcohol, and smoking. The Life Habits Inventory and the Japanese version of Home and Östberg Morningness-Eveningness Questionnaire were administered to approximately 1500 students, and data on life habits of the morning types were compared with those of the evening types. Significant differences between these types were found in frequency of ...
Tópico(s): Youth Substance Use and School Attendance
1985 - SAGE Publishing | Psychological Reports
Shuichi Higano, F Shishido, Masafumi Nagashima, Noriaki Tomura, Matsutarou Murakami, A Inugami, Hideaki Fujita, Ken‐ichi Tabata, Nobuyuki Yasui, Kazuo Uemura,
A cervical cord tumor was examined with positron emission tomography using L-methyl-[11C]methionine. The radioactive tracer accumulated in the solid parts (but not in the associated cysts) of the neoplasm, which at histology was found to be an ependymoma.
Tópico(s): Radiomics and Machine Learning in Medical Imaging
1990 - Lippincott Williams & Wilkins | Journal of Computer Assisted Tomography
Kazuhiko Fukuda, Akio Miyasita, Maki Inugami, Kaneyoshi Ishihara,
In Japan, a set of experiences called kanashibari is considered identical with isolated sleep paralysis. We investigated this phenomenon by means of a questionnaire administered to 635 college students (390 men and 245 women). Of all subjects, about 40% had experienced at least one episode of kanashibari [subjects of K(+)]. Therefore, isolated sleep paralysis is apparently a more common phenomenon than is usually appreciated. About half of the subjects of K(+) reported that they had been under "physical ...
Tópico(s): Neuroscience of respiration and sleep
1987 - Oxford University Press | SLEEP
Kazuhiko Fukuda, Akio Miyasita, Maki Inugami,
Among about 1000 male college students, 6 short and 5 long sleepers were finally selected on the basis of their responses to a sleep habit questionnaire. The subjects slept in the laboratory for 6 consecutive nights. On nights 4, 5 and 6, deliberate sleep interruption was performed during the second sleep cycle. During interruption, subjects were asked to perform 3 different kinds of tasks on each of the 3 nights. Stage REM latencies after interruption were distributed bimodally with peaks at sleep ...
Tópico(s): Sleep and related disorders
1987 - Elsevier BV | Electroencephalography and Clinical Neurophysiology
Kaneyoshi Ishihara, Akio Miyasita, Maki Inugami, Kazuhiko Fukuda, Yo Miyata,
This article is a survey study, followed by an experimental study, examining the differences of sleep-wake habits and sleep electroencephalographic (EEG) variables between morning and evening type subjects (Ss). In the survey study, the Japanese version of the Horne and Ostberg Morningness-Eveningness Questionnaire and Life Habits Inventory (LHI) were administered to approximately 1,500 university students. The survey results showed that the two types were significantly different from each other in ...
Tópico(s): Sleep and Wakefulness Research
1987 - Oxford University Press | SLEEP
Iwao Kanno, Hidehiro Iida, Shuichi Miura, M.T. Murakami, Kazuhiro Takahashi, Hiroshi Sasaki, A Inugami, F Shishido, Kazuki Uemura,
A system for CBF measurement using an H 2 15 O autoradiographic method and positron emission tomography (PET) has been designed and installed as a clinical tool. Following an intravenous injection of H 2 15 O, a radioactivity accumulation in the brain tissue for 60 s and a continuous record of radioactivity in arterial blood were measured by a high counting speed PET device and a beta-ray detector, respectively, and CBF was calculated by a table-lookup procedure. First, this method was compared with ...
Tópico(s): Lanthanide and Transition Metal Complexes
1987 - SAGE Publishing | Journal of Cerebral Blood Flow & Metabolism
Kaneyoshi Ishihara, Akio Miyashita, Maki Inugami, Kazuhiko Fukuda, Katsuo Yamazaki, Yo Miyata,
Morningness-Eveningness Questionnaire (MEQ) developed by Home & Östberg (1976) was translated into Japanese, and then, MEQ and Life Habits Inventory were administered to approximately 1500 university students. The distribution of MEQ scores was essentially normal, and the reliability of this questionnaire was high (γα=.702). Comparing among the morning, evening, and intermediate types, it was found that the morning type retired and arose significantly earlier than other types, although there was no significant ...
Tópico(s): Psychological and Temporal Perspectives Research
1986 - The Japanese Psychological Association | The Japanese journal of psychology
T Yamaguchi, Iwao Kanno, Kazuki Uemura, F Shishido, A Inugami, Toshihide Ogawa, M.T. Murakami, Koichi Suzuki,
To investigate changes in cerebral circulation and oxygen metabolism during aging, regional cerebral blood flow (rCBF), regional oxygen extraction fraction (rOEF), regional cerebral metabolic rate of oxygen (rCMRO2) and regional cerebral blood volume (rCBV) were measured using the 15O labelled gas inhalation technique and a multi-slice positron emission tomograph (PET) in 22 healthy volunteers, aged from 26 to 64 years old. The measurements were performed with subjects at rest, without sensory deprivation. ...
Tópico(s): Optical Imaging and Spectroscopy Techniques
1986 - Lippincott Williams & Wilkins | Stroke
Akio Miyasita, Kazuhiko Fukuda, Maki Inugami,
Forty-four normal male students, aged 18–23 years were studied. After adaptation and baseline night (BN), 3 or 4 consecutive nights were interrupted by a forced awakening (10–90 min) once a night (ENs). Subjects (Ss) were awakened after they had slept for the first sleep cycle plus 20 min of NREM sleep in the 2nd cycle. The REM latencies following return to sleep showed a bimodal distribution separated by 25–30 min. The ENs were divided into 2 clusters: SOREMP (sleep onset REM period) and non-SOREMP ...
Tópico(s): Circadian rhythm and melatonin
1989 - Elsevier BV | Electroencephalography and Clinical Neurophysiology
Hidehiro Iida, Iwao Kanno, Akira Takahashi, Shuichi Miura, M.T. Murakami, Kazuhiro Takahashi, Yusuke Ono, F Shishido, A Inugami, Noriaki Tomura,
An in vivo technique was developed for measuring the absolute myocardial blood flow with H215O and dynamic positron-emission tomography. This technique was based on a new model involving the concept of the tissue fraction, which was defined as the fraction of the tissue mass in the volume of the region of interest. The myocardium was imaged dynamically by positron-emission tomography, starting at the time of intravenous bolus injection of H215O. The arterial input function was measured continuously ...
Tópico(s): Cardiovascular Function and Risk Factors
1988 - Lippincott Williams & Wilkins | Circulation
Shuichi Miura, Iwao Kanno, Hidehiro lida, Matsutaro Murakami, Kazuhiro Takahashi, Hiroshi Sasaki, A Inugami, F Shishido, Toshihide Ogawa, Kazuo Uemura,
We have developed a method that allows us to place regions of interest on X-ray CT (XCT) images that are automatically adjusted to positron emission tomography (PET) images from the same patient. A face mask with landmarks was used during PET and XCT studies for matching slice positions between PET and XCT. Anatomical locations in different images of the same slice can be accurately adjusted using the landmarks and a video system. In our clinical experience misadjustments of the slice position are ...
Tópico(s): Atomic and Subatomic Physics Research
1988 - Lippincott Williams & Wilkins | Journal of Computer Assisted Tomography
Toshihide Ogawa, Kazuo Uemura, F Shishido, Tatsuo Yamaguchi, Matsutaro Murakami, A Inugami, Iwao Kanno, Hiroshi Sasaki, Toshio Kato, Kenji Hirata, Masayoshi Kowada, Katsuyoshi Mineura, Tsuneo Yasuda,
The effects of radiochemotherapy on blood flow, blood volume, and consumption of oxygen and glucose in tumor tissue and normal brain were studied by positron emission tomography. Thirteen patients with cerebral gliomas were included, and they were examined before, during, and within ∼1 month after the therapy. The 15O-labeled gas steady state inhalation and the 18F-fluorodeoxyglucose methods were used. After the therapy, glucose consumption and blood volume decreased (p < 0.03) in the tumoral tissue. ...
Tópico(s): MRI in cancer diagnosis
1988 - Lippincott Williams & Wilkins | Journal of Computer Assisted Tomography
Iwao Kanno, Kazuo Uemura, Schuichi Higano, Matsutaro Murakami, Hidehiro Iida, Shuichi Miura, F Shishido, A Inugami, Ichiro SAYAMA,
The oxygen extraction fraction (OEF) at maximally vasodilated tissue in patients with chronic cerebrovascular disease was evaluated using positron emission tomography. The vascular responsiveness to changes in P a CO 2 was measured by the H 2 15 O autoradiographic method. It was correlated with the resting-state OEF, as estimated using the 15 O steady-state method. The subjects comprised 15 patients with unilateral or bilateral occlusion and stenosis of the internal carotid artery or middle cerebral ...
Tópico(s): Cerebrovascular and Carotid Artery Diseases
1988 - SAGE Publishing | Journal of Cerebral Blood Flow & Metabolism
A Inugami, Iwao Kanno, Kazuo Uemura, F Shishido, Matsutaro Murakami, Noriaki Tomura, Hideaki Fujita, Shuichi Higano,
The radioisotope distribution following intravenous injection of 99m Tc-labeled hexamethylpropyleneamine oxime (HM-PAO) in the brain was measured by single photon emission computed tomography (SPECT) and corrected for the nonlinearity caused by differences in net extraction. The “linearization” correction was based on a three compartment model, and it required a region of reference to normalize the SPECT image in terms of regional cerebral blood flow distribution. Two different regions of reference, ...
Tópico(s): Advanced MRI Techniques and Applications
1988 - SAGE Publishing | Journal of Cerebral Blood Flow & Metabolism
Noriaki Tomura, K Uemura, A Inugami, Hideaki Fujita, S. Higano, F Shishido,
Early computed tomographic (CT) findings (scans obtained within 6 hours of the onset of stroke) were retrospectively analyzed in 25 patients with embolic cerebral infarction of the middle cerebral artery or internal carotid artery distribution, including the lentiform nucleus, diagnosed on the basis of findings at sequential CT. CT scans were analyzed for the following: (a) an obscured outline or partial disappearance of the lentiform nucleus, (b) a slight decrease in tissue density, or (c) effacement ...
Tópico(s): Acute Ischemic Stroke Management
1988 - Radiological Society of North America | Radiology
Toshihide Ogawa, Hideaki Fujita, A Inugami, F Shishido, S. Higano, Kazunori Uemura,
Tópico(s): Meningioma and schwannoma management
1991 - American Society of Neuroradiology | American Journal of Neuroradiology
Toshihide Ogawa, I. Kanno, F. Shishido, A. Inugami, S. Higano, Hideaki FUJITA, M. Murakami, K. Uemura, N. Yasui, K. Mineura, M. Kowada,
Tópico(s): Cancer, Hypoxia, and Metabolism
1991 - SAGE Publishing | Acta Radiologica
Toshihide Ogawa, Iwao Kanno, F Shishido, A Inugami, S Higano, Hideaki Fujita, M.T. Murakami, Kazuki Uemura, N Yasui, Katsuyoshi Mineura, Masayoshi Kowada,
We studied 15 patients clinically suspected to have recurrent brain tumor or radiation injury, using positron emission tomography (PET) with 18F-fluorodeoxyglucose (18FDG) and L-methyl-11C-methionine (11C-Met). PET with 11C-Met (Met-PET) clearly delineated the extent of recurrent brain tumor as focal areas of increased accumulation of 11C-Met, and was useful for early detection of recurrent brain tumor. PET with 18FDG (FDG-PET) showed focal 18FDG-hypermetabolism in one patient with malignant transformation ...
Tópico(s): Cancer, Hypoxia, and Metabolism
1991 - SAGE Publishing | Acta Radiologica
Hiroto Takada, Ken Nagata, Yutaka Hirata, Yuichi Satoh, Yasuhito Watahiki, Junya Sugawara, Eriko Yokoyama, Yasushi Kondoh, F Shishido, A Inugami, Hideaki Fujita, Toshihide Ogawa, Matsutaro Murakami, Hidehiro lida, lwao Kanno,
AbstractAbstractUsing positron emission tomography (PET), cerebral blood flow (CBF) and cerebral metabolic rate of oxygen (CMR02) were measured in 32 healthy volunteers aged from 27 to 67 years. In bilateral putamen, left supratemporal\ left infrafrontal and left parietal cortices, CMR02 showed a significant decline during aging. The age-related decline of CBF was seen only at the left superior temporal cortex. The mean CMR02 was significantly lower in the elder group (over 51 years old) than in the ...
Tópico(s): Cerebrovascular and Carotid Artery Diseases
1992 - Taylor & Francis | Neurological Research
Tomoka Takeuchi, Akio Miyasita, Yuka Sasaki, Maki Inugami, Kazuhiko Fukuda,
We elicited isolated sleep paralysis (ISP) from normal subjects by a nocturnal sleep interruption schedule. On four experimental nights, 16 subjects had their sleep interrupted for 60 minutes by forced awakening at the time when 40 minutes of nonrapid eye movement (NREM) sleep had elapsed from the termination of rapid eye movement (REM) sleep in the first or third sleep cycle. This schedule produced a sleep onset REM period (SOREMP) after the interruption at a high rate of 71.9%. We succeeded in eliciting ...
Tópico(s): EEG and Brain-Computer Interfaces
1992 - Oxford University Press | SLEEP
Tomoka Takeuchi, Kazuhiko Fukuda, Yuka Sasaki, Maki Inugami, Timothy I. Murphy,
To further investigate mechanisms of isolated sleep paralysis (ISP) in normal individuals, we experimentally elicited ISPs by facilitating sleep onset REM periods (SOREMP), a prerequisite of ISPs, and examined behavioral and psychological measurements relating to ISP appearances.The multi-phasic sleep/wake schedule (MPS) began at approximately midnight and ended when net sleep reached 7.5 hours. Participants were awakened after every 5 min of REM sleep to obtain a maximum number of SOREMPs. Upon each ...
Tópico(s): EEG and Brain-Computer Interfaces
2002 - Oxford University Press | SLEEP
Toshihide Ogawa, Iwao Kanno, Jun Hatazawa, A Inugami, Hiroaki Fujita, Eku Shimosegawa, Masao Murakami, Toshio Okudera, Kazuki Uemura, N Yasui,
Positron emission tomography (PET) with carbon-11 methionine, computed tomography (CT), and magnetic resonance (MR) imaging were performed in 10 patients with histologically verified central nervous system (CNS) lymphoma before and after radiation therapy to compare the radiologic findings and to evaluate the usefulness of PET in monitoring tumor response to radiation therapy. Methionine PET clearly depicted CNS lymphoma before radiation therapy as an increased accumulation of C-11 methionine. The extent ...
Tópico(s): Radiopharmaceutical Chemistry and Applications
1994 - Radiological Society of North America | Radiographics