Search Results: 1-20 of 383

1

Effects of Iodinated Contrast Agent on Diffusion Weighted Magnetic Resonance Imaging

Ogura Akio , Hayakawa Katsumi , Miyati Tosiaki , Maeda Fumie , 小倉明夫 , 宮地利明

… Rationale and Objectives: To evaluate the effects of iodine contrast agent on diffusion signal intensity and apparent diffusion coefficient (ADC) in diffusion-weighted imaging (DWI) studies in magnetic resonance imaging (MRI) examination just after computed tomography (CT) contrast imaging. … Materials and Methods: On a 1.5 T MRI scanner, ADC was calculated from the signal intensity of DWI (b = 0 and 1000) using phantoms filled with contrast agent (0, 4.5, 6.0, 9.0, 30, and 60 mgI/mL). …

Academic Radiology 16(10), 1196-1200, 2009-10

CrossRef IR
2

A status-epilepticus-type influenza-associated encephalopathy with intermittent high signals on day 1 and day 6 by Diffusion-Weighted Images (DWI) [in Japanese]

及川巧 , 池本亘 , 大崎雅也 [他]

Japanese journal of pediatrics 62(8), (740) 1863〜1867, 2009/8

Ichushi
3

On The Problems of Accepting Indonesian Nurses and Care Givers : Based on Questionnaire Delivered to the Japanese Facilities'Staffs and Indonesian Workers [in Japanese]

Mihara Iehiro , Nakazono Naoki , Hapsari Elsi Dwi , Sari Yunita , Matsuo Hiroya

Journal of international cooperation studies 17(1), 131-144, 20090700

CiNii Link1 IR
4

Simulation studies on appropriate imaging parameters for diffusion weighted function MRI [in Japanese]

NAGAHARA Shizue , OIDA Takenori , KOBAYASI Tetsuo

… 子の拡散の様子を画像化する拡散強調画像法(DWI)を用いての脳機能計測が可能であることが報告されている.これは脳活動時に神経細胞が膨張する事を利用しており,BOLD効果に基づくfMRIよりも時空間分解能に優れている.本研究ではヒトの神経細胞と同程度の大きさの構造中において制限拡散を行う水分子の運動をMonte-Calro法を用いてシミュレーションし,DWIを用いた脳機能計測に適した撮像パラメータ …

Technical report of IEICE. PRMU 109(64), 175-180, 20090521

CiNii PDF
5

Simulation studies on appropriate imaging parameters for diffusion weighted function MRI [in Japanese]

NAGAHARA Shizue , OIDA Takenori , KOBAYASI Tetsuo

… 子の拡散の様子を画像化する拡散強調画像法(DWI)を用いての脳機能計測が可能であることが報告されている.これは脳活動時に神経細胞が膨張する事を利用しており,BOLD効果に基づくfMRIよりも時空間分解能に優れている.本研究ではヒトの神経細胞と同程度の大きさの構造中において制限拡散を行う水分子の運動をMonte-Calro法を用いてシミュレーションし,DWIを用いた脳機能計測に適した撮像パラメータ …

IEICE technical report. Image engineering 109(63), 175-180, 20090521

CiNii PDF
6

Simulation studies on appropriate imaging parameters for diffusion weighted function MRI [in Japanese]

NAGAHARA Shizue , OIDA Takenori , KOBAYASI Tetsuo

… 子の拡散の様子を画像化する拡散強調画像法(DWI)を用いての脳機能計測が可能であることが報告されている.これは脳活動時に神経細胞が膨張する事を利用しており,BOLD効果に基づくfMRIよりも時空間分解能に優れている.本研究ではヒトの神経細胞と同程度の大きさの構造中において制限拡散を行う水分子の運動をMonte-Calro法を用いてシミュレーションし,DWIを用いた脳機能計測に適した撮像パラメータ …

IEICE technical report. 109(65), 175-180, 20090521

CiNii PDF
7

Subdural Empyema Indistinguishable from Chronic Subdural Hematoma: A Case Report [in Japanese]

Kunii Norihiko , Abe Takumi

… 症例は62歳の男性.左上肢の脱力と痙攣発作で当院に救急搬送された.頭部CT・MRI(DWIを含む)上,右大脳半球円蓋部に硬膜下液貯留を認め,血液生化学検査では炎症徴候を認めなかった.当初は慢性硬膜下血腫と診断され,第1病日に穿頭術が行われたが,術中硬膜下腔より膿の排出を認め,硬膜下膿瘍と診断された.その後,抗生物質による治療を行ったが,最終的には開頭術による膿瘍除去を必要とした.本例はいわゆる感染性硬膜下 …

Japanese journal of neurosurgery 18(4), 312-318, 20090420

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8

Women's education in early 20 century of Indonesian nation building period: Kartini and its era background [in Japanese]

Rostika Mya Dwi

国士館大学大学院政経論集 (12), 125〜151, 2009/3
9

A CASE OF HEPATIC INFLAMMATORY PSEUDOTUMOR WHICH PRESENTED DIFFICULTY IN EXCLUDING MALIGNANCY MAINLY DUE TO HIGH INTENSITY ON DWI-MRI [in Japanese]

TOURA Isao , ICHINOSE Masanori , MATSUBARA Hisahiro

日本臨床外科学会雑誌 = The journal of the Japan Surgical Association 70(2), 475-480, 20090225

Ichushi References (18)
10

Usefulness of sagittal DWI sections for diagnosis of acute phase brain-stem infarctions : Report of two cases [in Japanese]

HAYASHI Shigeto , TAKEDA Naoya , FUJITA Katsuzo , MORIKAWA Masashi

脳卒中 31(1), 34-37, 20090125

Ichushi References (5)
11

Evaluation of the Efficiency of Selection of Pearl Millet in Japan and Indonesia(Genetic Resources and Evaluation) [in Japanese]

YOSHIDA Tomohiko , SHIROTORI Tomomi , Anas , HARYANTO Totok Agung Dwi

トウジンビエ(Pennisetum typhoideum Rich.)の子実収量を向上させるための集団選抜を短期間で行い,かつ広域適応性を付与するため,選抜とその効果の評価を日本とインドネシアの2ヵ国で行った.早生,短稈,長穂の3形質での選抜を日本のポット栽培で,その選抜効果の評価をインドネシアの畑で行ったところ,緯度の異なる2ヵ国で栽培することにより農業形質についての選抜と評価を1年間で行うこと …

Japanese Journal of Crop Science 78(1), 83-86, 20090105

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12

Examination of Upper Abdominal Region in High Spatial Resolution Diffusion-weighted Imaging Using 3-Tesla MRI

Terada Masaki , Matsushita Hiroki , Oosugi Masanori , Inoue Kazuyasu , Yaegashi Taku , Anma Takeshi

… In this study, we compared SNR and the apparent diffusion coefficient (ADC) value with 3-Tesla as the condition in the diffusion-weighted image (DWI) parameter of the 1.5-Tesla magnetic resonance imaging (1.5-Tesla) and we examined the high spatial resolution images in the imaging method [respiratory-triggering (RT) method and breath free (BF) method] and artifact (motion and zebra) in the upper abdominal region of DWI at 3-Tesla. …

Japanese Journal of Radiological Technology 65(3), 312-322, 2009

Ichushi J-STAGE
13

A Study of ADC Value in PROPELLER DWI

Naka Takanori , Takahashi Mitsuyuki

… Diffusion weighted imaging(DWI)is rapidly becoming widespread in MRI, with many reports of the differential diagnosis using the Apparent Diffusion Coefficient(ADC)being seen. … We examined the influence of scan parameter on ADC in PROPELLER-DWI. …

Japanese Journal of Radiological Technology 65(11), 1519-1525, 2009

J-STAGE
14

Distortion in Diffusion Weighted Imaging

Takahashi Mitsuyuki , Ogura Akio , Ozaki Masanori , Muro Isao , Doi Tsukasa , Miyati Tosiaki , Tanji Hajime , Takahashi Junji , Takizawa Osamu

… Next, the distortion of each images that composed DWI with the increase and the sign acceptable method difference of b value. …

Japanese Journal of Radiological Technology 65(11), 1494-1501, 2009

J-STAGE
15

Investigation of a Phantom for Diffusion Weighted Imaging That Controlled the Apparent Diffusion Coefficient Using Gelatin and Sucrose

Tamura Takayuki , Usui Shuji , Akiyama Mitoshi

… When studying diffusion weighted imaging(DWI), it is important to create a phantom that has a reliably controlled diffusion coefficient. … We consider this phantom suitable for studying SE-type DWI and contributes to elucidation of this technique. …

Japanese Journal of Radiological Technology 65(11), 1485-1493, 2009

J-STAGE
16

Evaluation of Initial Diffusion-weighted Image Findings in Acute Stroke Patients using a Semiquantitative Score

MORITA Naomi , HARADA Masafumi , UNO Masaaki , MATSUBARA Shunji , NAGAHIRO Shinji , NISHITANI Hiromu

… Purpose: We evaluated the usefulness of rating diffusion-weighted images (DWI) using a semiquantitative score modified from the Alberta Stroke Programme Early CT Score (ASPECTS) to predict deterioration of neurological symptoms in patients with hyperacute ischemic stroke who had undergone thrombolytic therapy with recombinant tissue plasminogen activator (rt-PA). …

Magnetic Resonance in Medical Sciences 8(2), 47-53, 2009

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17

Diffusion-weighted Imaging of an Atypical Teratoid/rhabdoid Tumor of the Cervical Spine

NIWA Tetsu , AIDA Noriko , TANAKA Mio , OKUBO Jun , SASANO Mari , SHISHIKURA Ayako , FUJITA Kazutoshi , ITO Susumu , TANAKA Yukichi , KIGASAWA Hisato

… We present diffusion-weighted imaging (DWI) findings for an intradural extramedullary AT/RT in the cervical spine of a 6-year-old boy. … High signal on DWI and low apparent diffusion coefficients may represent high cellularity of the tumor. …

Magnetic Resonance in Medical Sciences 8(3), 135-138, 2009

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18

Prognostic Value of Magnetic Resonance Imaging in Post-Resuscitation Encephalopathy

Topcuoglu Mehmet Akif , Oguz Kader Karli , Buyukserbetci Gulseren , Bulut Elif

… Methods We analyzed the results of magnetic resonance (MR) imaging with fluid-attenuated inversion recovery (FLAIR) and diffusion-weighted imaging (DWI) in 22 consecutive patients with PRE. …

Internal Medicine 48(18), 1635-1645, 2009

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19

Diffusion Weighted Imaging (DWI) by MRI Evaluates the Subtypes of Peripheral and Small Lung Adenocarcinoma

Tanaka Ryota , Horikoshi Hiroyuki , Yoshida Tsutomu , Nakazato Yoshimasa , Suzuki Kuniaki , Sato Koji , Iijima Misa , Goya Tomoyuki , Minato Koichi

… Cを初期浸潤癌（n=21），Type D+Eを浸潤癌（n=5）と定義した．病巣部の信号強度（DWI）を脊髄部の信号強度（SC）で割ることでえられた比率（DWI/SC比）を算出した．CTとDWI/SC比の画像解析データをもとにROC（receiver operating characteristic）曲線を作成し比較検討した．結果．各浸潤度別のDWI/SC比（平均値）は非浸潤癌が0.444±0.283，初期浸潤癌が0.985±0.513，浸潤癌が0.790± …

Haigan 49(1), 17-24, 2009

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20

Estimation of Cell Membrane Permeability and Intracellular Diffusion Coefficient of Human Gray Matter

IMAE Toshikazu , SHINOHARA Hiroyuki , SEKINO Masaki , UENO Shoogo , OHSAKI Hiroyuki , MIMA Kazuo , OHTOMO Kuni

… The signal intensity of diffusion-weighted imaging (DWI) is sensitive to the intra- and extracellular diffusion coefficient of water and cell membrane permeability. …

Magnetic Resonance in Medical Sciences 8(1), 1-7, 2009

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Search Results: 1-20 of 383

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