WordNet

(statistics) a coefficient assigned to elements of a frequency distribution in order to represent their relative importance (同)weighting
sports equipment used in calisthenic exercises and weightlifting; it is not attached to anything and is raised and lowered by use of the hands and arms (同)free weight, exercising weight
an artifact that is heavy
the vertical force exerted by a mass as a result of gravity
the relative importance granted to something; "his opinion carries great weight"; "the progression implied an increasing weightiness of the items listed" (同)weightiness
an oppressive feeling of heavy force; "bowed down by the weight of responsibility"
render visible, as by means of MRI
the general impression that something (a person or organization or product) presents to the public; "although her popular image was contrived it served to inspire music and pageantry"; "the company tried to project an altruistic image"
an iconic mental representation; "her imagination forced images upon her too awful to contemplate" (同)mental image
(mathematics) the set of values of the dependent variable for which a function is defined; "the image of f(x) = x^2 is the set of all non-negative real numbers if the domain of the function is the set of all real numbers" (同)range, range of a function
(physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration
the spread of social institutions (and myths and skills) from one society to another
adjusted to reflect value or proportion; "votes weighted according to the size of constituencies"; "a law weighted in favor of landlords"; "a weighted average"
(medicine) obtaining pictures of the interior of the body (同)tomography

PrepTutorEJDIC

〈u〉『重さ』,重量,目方;体重;《a weight》(…の)重さ《+of+名》 / 〈u〉重さ(重力が物体に及ぼす力) / 〈u〉衡法(重量を示す体係) / 〈c〉重量単位 / 〈c〉(はかりの)おもり,分銅;(一般に)重いもの,おもし / 〈u〉重要性,価値 / 〈u〉《しばしば a weight》精神的な重荷,負担 / (…で)…‘に'重荷を負わせる;…‘を'圧迫する;苦しめる《+名+with+名》 / …‘を'重くする
(鏡に映った)『像』,(レンズによる)映像 / (心に浮かぶ)『像』,心像,イメージ / (絵・彫刻などによる人・動物などの)『像』,肖像;偶像《+『of』+『名』》 / (…に)『そっくりの人』(『物』)《+『of』+『名』》 / (…の)典型;(…の)化身《+『of』+『名』》 / (直喩(ちょくゆ)・隠喩などの)比喩 / …‘の'像を描く;…‘を'思い描く
放散,発散,拡散[作用] / 普及,流布 / (文体などの)散漫,冗漫
《補語にのみ用いて》(…に)有利な《+toward+名》

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 急性虚血脳卒中の神経画像 neuroimaging of acute ischemic stroke
2. 乳房のMRIおよび新しい技術 mri of the breast and emerging technologies
3. ラクナ梗塞 lacunar infarcts
4. 一過性脳虚血発作の定義 definition of transient ischemic attack
5. 急性痙攣発作に関連するMRIの変化 magnetic resonance imaging changes related to acute seizure activity

English Journal

A method for anisotropic spatial smoothing of functional magnetic resonance images using distance transformation of a structural image.

Nam H, Lee D, Lee JD, Park HJ.SourceDepartment of Radiology, Nuclear Medicine and Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea. Institute of Mathematical Sciences, Ewha Womans University, Seoul, Korea.
Physics in medicine and biology.Phys Med Biol.2011 Aug 7;56(15):5063-77. Epub 2011 Jul 19.
Spatial smoothing using isotropic Gaussian kernels to remove noise reduces spatial resolution and increases the partial volume effect of functional magnetic resonance images (fMRI), thereby reducing localization power. To minimize these limitations, we propose a novel anisotropic smoothing method fo
PMID 21772082

Molecular Imaging of Malignant Tumor Metabolism Whole-Body Image Fusion of DWI/CT vs. PET/CT.

Reiner CS, Fischer MA, Hany T, Stolzmann P, Nanz D, Donati OF, Weishaupt D, von Schulthess GK, Scheffel H.SourceDepartment of Medical Radiology, Institute of Diagnostic and Interventional Radiology, University Hospital, Zurich, Switzerland.
Academic radiology.Acad Radiol.2011 Aug;18(8):940-6.
PURPOSE: To prospectively investigate the technical feasibility and performance of image fusion for whole-body diffusion-weighted imaging (wbDWI) and computed tomography (CT) to detect metastases using hybrid positron emission tomography/computed tomography (PET/CT) as reference standard.MATERIAL AN
PMID 21718953

Japanese Journal

急性期脳梗塞のMRI拡散強調画像における濃度ヒストグラム解析法を用いた表示条件自動設定法

下川賢二,長島宏幸,小倉敏裕,白石明久,五十嵐均,土井邦雄
群馬県立県民健康科学大学紀要 6, 33-40, 2011-03
目的:本研究では,濃度ヒストグラム解析法を用いて,急性期脳梗塞の脳MRI拡散強調画像(DWI)の表示条件を自動設定する方法を考案した.方法:本研究では,虚血後6時間以内に撮像された60症例のDWIを利用した.本手法は,まず,別の1症例に対し,b0画像上の視床の信号強度を利用してDWIの表示条件を設定させる既存方法を適用し,線形濃度変換法を用いて表示条件を8bitsに変換した.次に,濃度ヒストグラム …
NAID 110008148672