| 영문 | magnetic resonance imaging(MRI) | 한글 | 자기공명영상 |
|---|---|---|---|
| 설명 | 인체의 장기나, 병적인 모양, 종양의 위치, 림프절의 비대 등에 대한 진단을 내리기 위해 시행하는 방사선학적인 검사방법이다. 현재 많이 쓰이고 있는 컴퓨터단층촬영술(CT: computerized tomography)과는 다른 방법으로 시행하며, 그 해상도가 컴퓨터단층촬영보다는 뛰어나 비록 고가이긴 하지만, 많이 쓰이고 있다. 또한 인체에 무해하고, 여러 가지 면에서 사람을 단층으로 분리시켜 볼 수 있는 등 장점이 많다. 단점은 심장박동기를 설치한 사람이나, 주위에 장을 띠는 물체를 몸에 지니고 있는 중환자 등에서는 이용할 수 없고, 복부장기에 대한 진단에는 컴퓨터단층촬영보다 불리한 것으로 되어 있으며, 무엇보다 설치비와 그 시술비가 비싸다는데 가장 큰 단점이 있다. |
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| 영문 | nuclear magnetic resonance(NMR) | 한글 | 핵자기공명 |
|---|---|---|---|
| 설명 | 다른 말로 MRI=Magnetic Resonance Imaging 자기공명영상이라고도 한다. 인체의 장기나, 병적인 모양, 종양의 위치, 림프절의 비대 등에 대한 진단을 내리기 위해 시행하는 방사선학적인 검사방법이다. 현재 많이 쓰이고 있는 컴퓨터단층촬영(CT=computerized tomography)과는 다른 방법으로 시행하며, 그 해상도가 컴퓨터단층촬영보다는 뛰어나 비록 고가이긴 하지만, 많이 쓰이고 있다. 또한 인체에 무해하고, 여러 가지 면(plane)에서 사람을 단층시켜 볼 수 있다. 단점은 심장박동기를 설치한 사람이나, 주위에 자장을 띠는 물체를 몸에 지니고 있는 중환자 등에서는 이용할 수 없고, 복부장기에 대한 진단에는 컴퓨터단층촬영보다 떨어지는 것으로 되어 있다. |
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| B1 | induced field in magnetic resonance imaging; radiofrequency magnetic field in nuclear magnetic reson... |
|---|---|
| B0 | constant magnetic field in nuclear magnetic resonance |
| Bo | constant magnetic field in a magnetic resonance scanner |
| MR | Maddox rods; magnetic resistance; magnetic resonance; mandibular reflex; mannose-resistant; may repe... |
| GMN | gradient moment nulling |
| CSMI | Cross-sectional moment of inertia |
|---|---|
| EMT | Epithelial-mesenchymal transition |
| MBT | Mid-Blastula-Transition |
| MPT | Mitochondrial Permeability Transition |
| T(g) | The glass transition temperature |
| magnetic moment | <physics> (a) A vector associated with a magnet, current loop, or particle, the cross product of this vector with the magnetic field is equal to the torque which the field exerts on the system. (b) The adiabatic invariant associated with the rapid gyromotion of a charged particle in a slowly varying magnetic field. (The value of the magnetic moment in sense (b) is the magnitude of the vector in sense (a).) (13 Nov 1997) |
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| moment | 1. A minute portion of time; a point of time; an instant; as, at thet very moment. "In a moment, in the twinkling of an eye." (1 Cor. Xv. 52) 2. Impulsive power; force; momentum. "The moments or quantities of motion in bodies." (Berkley) "Touch, with lightest moment of impulse, His free will." (Milton) 3. Importance, as in influence or effect; consequence; weight or value; consideration. "Matters of great moment." (Shak) "It is an abstruse speculation, but also of far less moment and consequence of us than the others." (Bentley) 4. An essential element; a deciding point, fact, or consideration; an essential or influential circumstance. 5. <mathematics> An infinitesimal change in a varying quantity; an increment or decrement. 6. <mechanics> Tendency, or measure of tendency, to produce motion, especially. Motion about a fixed point or axis. Moment of a couple, the product of the intensity of the force into the perpendicular distance from the point to the line of direction of the force, the product of that component of the force which is perpendicular to the plane passing through the line and the point of application of the force, into the shortest distance between the line and this point, the product of the force into the perpendicular distance of its point of application from the plane. Moment of inertia, of a rotating body, the sum of the mass of each particle of matter of the body into the square of its distance from the axis of rotation; called also moment of rotation and moment of the mass. Statical moment, the product of a force into its leverage; the same as moment of a force with respect to a point, line, etc. Virtual moment. See Virtual. Synonym: Instant, twinkling, consequence, weight, force, value, consideration, signification, avail. Origin: F. Moment, L. Momentum, for movimentum movement, motion, moment, fr. Movere to move. See Move, and cf. Momentum, Movement. Source: Websters Dictionary (01 Mar 1998) |
| product-moment correlation | A statistical procedure which yields the correlation coefficient referred to as r (-1.00 to +1.00) and involves the actual values, rather than the ranks (rank order) of the measurements. (05 Mar 2000) |
| overturning moment | <radiobiology> Torque (moment) on a toroidal field coil in a tokamak, about the device's radial direction, that results from out-of-plane forces on the coil due to the interactions between the coil current and the poloidal (vertical) magnetic field. This torque tends to overturn the vertical toroidal field coil, and must be engineered against. (09 Oct 1997) |
| cervicothoracic transition | The junction between the last cervical vertebra and first thoracic vertebra. (05 Mar 2000) |
| health transition | Demographic and epidemiologic changes that have occurred in the last five decades in many developing countries and that are characterised by major growth in the number and proportion of middle-aged and elderly persons and in the frequency of the diseases that occur in these age groups. The health transition is the result of efforts to improve maternal and child health via primary care and outreach services and such efforts have been responsible for a decrease in the birth rate; reduced maternal mortality; improved preventive services; reduced infant mortality, and the increased life expectancy that defines the transition. (12 Dec 1998) |
| helix-coil transition | <molecular biology> A change in the structure of a nucleic acid or protein molecule from a highly ordered, complex structure to a random, chaotic structure. Also means that the protein or nucleic acid becomes denatured. (09 Oct 1997) |
| isomeric transition | The transition of a nuclear isomer to a lower quantum state; e.g., 131mXe → 131Xe + g. (05 Mar 2000) |
| transition | 1. Passage from one place or state to another; charge; as, the transition of the weather from hot to cold. "There is no death, what seems so is transition." (Longfellow) 2. A direct or indirect passing from one key to another; a modulation. 3. A passing from one subject to another. "[He] with transition sweet, new speech resumes." (Milton) 4. <biology> Change from one form to another. This word is sometimes pronounced; but according to Walker, Smart, and most other authorities, the customary and preferable pronunciation is, although this latter mode violates analogy. Other authorities say . <geology> Transition rocks, a term formerly applied to the lowest uncrystalline stratified rocks (graywacke) supposed to contain no fossils, and so called because thought to have been formed when the earth was passing from an uninhabitable to a habitable state. Origin: L. Transitio: cf. F. Transition. See Transient. Source: Websters Dictionary (01 Mar 1998) |
| transition electron | An electron that moves from one energy level to another to fill a vacancy in a shell, with the emission of characteristic radiation. (05 Mar 2000) |
| transition mutation | A point mutation involving substitution of one base-pair for another, i.e., replacement of one purine for another and of one pyrimidine for another pyrimidine without change in the purine-pyrimidine orientation. (05 Mar 2000) |
| transition probability model | A model to account for the apparently random variation in cell cycle time between individual animal tissue cells in culture that postulates that transition from G1 to s phase is probabilistic. Contrasts with hypotheses that require the accumulation of critical levels of particular proteins. (18 Nov 1997) |
| transition protein | <molecular biology> In spermatogenesis, group of proteins that displace histones from nuclear DNA and that are in turn displaced by protamines to produce the transcriptionally inactive nuclear DNA characteristic of the sperm nucleus. (18 Nov 1997) |
| transition state | The activated state of a molecule that has partly undergone a chemicalreaction. (09 Oct 1997) |
| transition state intermediate | In a chemical reaction, an unstable and high-energy configuration assumed by reactants on the way to making products. Enzymes are thought to bindand stabilise the transition state, thus lowering the energy of activation needed to drive the reaction to completion. (09 Oct 1997) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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