| ¿µ¹® | acoustic neuroma, acoustic neurilemmoma | ÇÑ±Û | û½Å°æÃÊÁ¾ |
|---|---|---|---|
| ¼³¸í | û½Å°æ(Á¦8³ú½Å°æ)ÀÇ ½Å°æ°ÑÀ» ½Î°í ÀÖ´Â Áý(sheath)ÀÇ ½´¹Ý¼¼Æ÷(Schwann cell)¿¡¼ ±â¿øÇÏ´Â Á¾¾ç-³úÁ¾¾ç Áß ºñ±³Àû ÈçÇÏ¸ç ´ë°³ 40~50´ë¿¡ È£¹ßÇÑ´Ù. Áõ»óÀ¸·Î´Â ±Í¿ï¸², ³Ã», ¼Ò³ú±â´ÉÀå¾Ö µîÀÌ ÀÖÀ¸¸ç, ÀÌÁß ±Í¿ï¸²ÀÌ °¡Àå ÃʱâÀÇ Áõ»óÀÌ´Ù. |
||
| ICG | impedance cardiogram; impedance cardiography |
|---|---|
| AS | acetylstrophanthidin; acidified serum; acoustic schwannoma; acoustic stimulation; active sarcoidosis... |
| CCM | cerebrocostomandibular [syndrome]; chemical cleavage of mismatch; congestive cardiomyopathy; cranioc... |
| IPG | Impedance Plethysmo-Graphy |
| BIA | biolectric impedance analysis; bioimmunoassay |
| CCM | Chemical Cleavage of Mismatch |
|---|---|
| MMN | Mismatch Negativity |
| MMF | mismatch field |
| MMR | Mismatch repair |
| MM | mismatch |
| acoustic impedance | The resistance that a material offers to the passage of a sound wave (colloquial); a property of a medium computed as the product of density and sound propagation speed (characteristic acoustic impedance). Discontinuities in acoustic impedance are responsible for the echoes on which ultrasound imaging is based. Unit: the rayl. (05 Mar 2000) |
|---|---|
| acoustic impedance tests | Objective tests of middle ear function based on the difficulty (impedance) or ease (admittance) of sound flow through the middle ear. These include static impedance and dynamic impedance (i.e., tympanometry and impedance tests in conjunction with intra-aural muscle reflex elicitation). This term is used also for various components of impedance and admittance (e.g., compliance, conductance, reactance, resistance, susceptance). (12 Dec 1998) |
| ventilation/perfusion mismatch | An imbalance between alveolar ventilation and pulmonary capillary blood flow. (05 Mar 2000) |
| v/q mismatch | <radiology> Mnemonic: FEV ONE, F fibrosing mediastinitis, E effusion, V vasculitis, O one pulmonary artery (or hypoplasia), N neoplasm, E embolism (12 Dec 1998) |
| mismatch repair | <molecular biology> A DNA repair system that detects and replaces wrongly paired, mismatched, bases in newly replicated DNA. E. Coli has a mismatch correction enzyme coded for by three genes mutH, mutL and mutS, that is directed to the newly synthesised strand and removes a segment of that strand including the incorrect nucleotide. The gap is then filled by DNA polymerase. (18 Nov 1997) |
| cardiography, impedance | A type of impedance plethysmography in which bioelectrical impedance is measured between electrodes positioned around the neck and around the lower thorax. It is used principally to calculate stroke volume and cardiac volume, but it is also related to myocardial contractility, thoracic fluid content, and circulation to the extremities. (12 Dec 1998) |
| plethysmography, impedance | Recording changes in electrical impedance between electrodes placed on opposite sides of a part of the body, as a measure of volume changes in the path of the current. (12 Dec 1998) |
| impedance | 1. Total opposition to flow. When flow is steady, impedance is simply the resistance, e.g., the driving pressure per unit flow; when flow is changing, impedance also includes the factors that oppose changes in flow. Thus, deviations of impedance, from simple ohmic resistance because of the effects of capacitance and inductance, become more important in alternating current as the frequency of oscillations increases. In fluid analogies (e.g., pulsatile flow of blood, to-and-fro flow of respiratory gas), impedance depends not only on viscous resistance but also upon compressibility, compliance, inertance, and the frequency of imposed oscillations. 2. Resistance of an acoustic system to being set in motion. (05 Mar 2000) |
| impedance angle | A term expressing the ratio of electric resistance to electric capacitance (ohms to microfarads) in the tissues of the body or any other substance. (05 Mar 2000) |
| impedance method | A method for localizing brain structures by measuring impedance of electric current. (05 Mar 2000) |
| electric impedance | The opposition to the flow of an alternating current, which is the vector sum of ohmic resistance plus additional resistance, if any, due to induction, to capacity, or to both. (12 Dec 1998) |
| acoustic | Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory. Acoustic duct, the auditory duct, or external passage of the ear. Acoustic telegraph, a telegraph making audible signals; a telephone. Acoustic vessels, brazen tubes or vessels, shaped like a bell, used in ancient theaters to propel the voices of the actors, so as to render them audible to a great distance. Origin: F. Acoustique, Gr. Relating to hearing, fr. To hear. A medicine or agent to assist hearing. Source: Websters Dictionary (01 Mar 1998) |
| acoustic agraphia | The inability to write from dictation. (05 Mar 2000) |
| acoustic aphasia | An impairment in comprehension of the auditory forms of language and communication, including the ability to write from dictation in the presence of normal hearing. Spontaneous speech, reading, and writing are not affected. Synonym: acoustic aphasia, word deafness. (05 Mar 2000) |
| acoustic area | The floor of the lateral recess of the fourth ventricle, extending medially to the limiting sulcus and overlying the cochlear and vestibular nuclei of the rhombencephalon. Synonym: area acustica. (05 Mar 2000) |
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