- 同
- IVRT, 等容弛緩時間
WordNet
- set the speed, duration, or execution of; "we time the process to manufacture our cars very precisely"
- a period of time considered as a resource under your control and sufficient to accomplish something; "take time to smell the roses"; "I didnt have time to finish"; "it took more than half my time"
- a suitable moment; "it is time to go"
- adjust so that a force is applied and an action occurs at the desired time; "The good player times his swing so as to hit the ball squarely"
- an indefinite period (usually marked by specific attributes or activities); "he waited a long time"; "the time of year for planting"; "he was a great actor in his time"
- regulate or set the time of; "time the clock"
- the continuum of experience in which events pass from the future through the present to the past
- an instance or single occasion for some event; "this time he succeeded"; "he called four times"; "he could do ten at a clip" (同)clip
- a persons experience on a particular occasion; "he had a time holding back the tears"; "they had a good time together"
- assign a time for an activity or event; "The candidate carefully timed his appearance at the disaster scene"
- (physics) the exponential return of a system to equilibrium after a disturbance (同)relaxation behavior
- (physiology) the gradual lengthening of inactive muscle or muscle fibers
- a method of solving simultaneous equations by guessing a solution and then reducing the errors that result by successive approximations until all the errors are less than some specified amount (同)relaxation method
- an occurrence of control or strength weakening; "the relaxation of requirements"; "the loosening of his grip"; "the slackening of the wind" (同)loosening, slackening
- shrub with terminal tufts of elongated leaves used locally for thatching and clothing; thick sweet roots are used as food; tropical southeastern Asia, Australia and Hawaii (同)Cordyline terminalis
- the syllable naming the seventh (subtonic) note of any musical scale in solmization (同)te, si
- the regulation of occurrence, pace, or coordination to achieve a desired effect (as in music, theater, athletics, mechanics)
- the time when something happens
- a more or less definite period of time now or previously present; "it was a sign of the times"
PrepTutorEJDIC
- 〈U〉《冠詞をつけずに》(空間に対しての)『時間』,時 / 〈U〉(時計で示される)『時刻』 / 〈U〉(ある方式で決められる)『時間』,標準時 / 〈C〉〈U〉(特定の)『時』,おり,ころ / 〈U〉《しばしば A ~》(ある長さの)『時間』,期間 / 〈U〉(要する)『時間』;暇 / 《しばしば複数形で》(歴史上の)『時代』 / 《複数形で》時勢,景気 / 《one's ~》(個人の)一生;若いころ;生涯の特定の時期 / 〈U〉《しばしば A ~》(ある経験をした)『時間』 / 〈C〉『…回』,度 / 〈C〉『…倍』 / …の時間を定める / (…に)…の調子を合わせる《+名+to+名》 / …の時間を計る
- (…を)ゆるめること,緩和すること;(…を)ゆるみ;(規則などの)緩和,軽減《+『of』+『名』》 / 休養,くつろぎ,気晴らし,娯楽(diversion)
- シ(全音階の第7音)
- 時間の調節;時間を測定[記録]すること
- …掛ける
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2017/12/11 16:10:15」(JST)
[Wiki en表示]
Wiggers diagram of the cardiac cycle, with isovolumic relaxation marked at top
Isovolumic relaxation time (IVRT) is an interval in the cardiac cycle, from the aortic component of the second heart sound, that is, closure of the aortic valve, to onset of filling by opening of the mitral valve.[1] It can be used as an indicator of diastolic dysfunction.
It can be measured by simultaneous Doppler echocardiography and M-mode sonography, or better still, by simultaneous phonocardiogram and transmitral Doppler.[2]
Prolonged IVRT indicates poor myocardial relaxation. A normal IVRT is about 70 ± 12 ms, and approximately 10 ms longer in people over forty years.[2] In abnormal relaxation, IVRT is usually in excess of 110 ms.[2] With restrictive ventricular filling, it is usually under 60 ms.[2]
See also
- Isovolumetric contraction
References
- ^ "Inductance cardiography (thoracocardiography): A novel, noninvasive technique for monitoring left ventricular filling". Journal of Critical Care, Volume 14, Issue 4, Pages 177–185
- ^ a b c d anaesthetist.com >Diastolic dysfunction Lara Hopley and Jo van Schalkwyk. Date of last update: 2009-06-05
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.
English Journal
- Effects of an Isolated Complete Right Bundle Branch Block on Mechanical Ventricular Function.
- Zhang Q1, Xue M1, Li Z1, Wang H1, Zhu L1, Liu X1, Meng H1, Hou Y2.
- Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.J Ultrasound Med.2015 Dec;34(12):2171-7. doi: 10.7863/ultra.14.10069. Epub 2015 Oct 21.
- OBJECTIVES: The purpose of this study was to investigate the effects of an isolated complete right bundle branch block on mechanical ventricular function.METHODS: Two groups of participants were enrolled in this study: a block group, consisting of 98 patients with isolated complete right bundle bran
- PMID 26491093
- Soy Protein Alleviates Hypertension and Fish Oil Improves Diastolic Heart Function in the Han:SPRD-Cy Rat Model of Cystic Kidney Disease.
- Ibrahim NH1,2,3, Thandapilly SJ1,2,3,4,5, Jia Y1, Netticadan T6,7,8, Aukema H9,10,11.
- Lipids.Lipids.2015 Dec 1. [Epub ahead of print]
- Abnormalities in cardiac structure and function are very common among people with chronic kidney disease, in whom cardiovascular disease is the major cause of death. Dietary soy protein and fish oil reduce kidney disease progression in the Han:SPRD-Cy model of cystic renal disease. However, the effe
- PMID 26626478
- Echocardiographic Evaluation of Biventricular Function in Patients with Euthyroid Hashimoto's Thyroiditis.
- Vatan MB, Varım C, Ağaç MT, Varım P, Çakar MA, Aksoy M, Erkan H, Yılmaz S, Kilic H, Gündüz H, Akdemir R.
- Medical principles and practice : international journal of the Kuwait University, Health Science Centre.Med Princ Pract.2015 Nov 25. [Epub ahead of print]
- OBJECTIVE: To evaluate the left (LV) and right (RV) ventricular function in euthyroid Hashimoto's thyroiditis (eHT) patients.SUBJECTS AND METHODS: Forty five (45) patients diagnosed with euthyroid Hashimoto's thyroiditis (eHT) and age and gender-matched forty five (45) control subjects were enrolled
- PMID 26613523
Japanese Journal
- Spironolactone Decreases Isoproterenol-Induced Ventricular Fibrosis and Matrix Metalloproteinase-2 in Rats
- Hori Yasutomo,Yoshioka Kazuki,Kanai Kazutaka,Hoshi Fumio,Itoh Naoyuki,Higuchi Sei-ichi
- Biological & Pharmaceutical Bulletin 34(1), 61-65, 2011
- … Compared with the controls, ISO significantly elevated the end-diastolic left ventricular (LV) pressure and the time constant of isovolumic relaxation and decreased the −dP/dt, while those of SPI co-treatment did not. …
- NAID 130000402263
- ハーフロジスティック関数適合を用いた心臓および心筋の収縮・弛緩機能の評価
Related Links
- ISOVOLUMIC RELAXATION TIME The IVRT is simply the time interval between aortic valve closure and mitral valve opening. A normal IVRT is approximately 80 to 100 ms, but the normal range varies with age and heart rate. Impaired ...
- Design., Echocardiograms to obtain MPI, isovolumic contraction time, and isovolumic relaxation time were performed at four time periods: in the operating room, in the operating room prior to BDG, shortly after separation from ...
★リンクテーブル★
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- 同
- isovolumic relaxation time, IVRT
- 同
- IRT, isovok」mic relaxation time
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- 同
- isovolumic relaxation time, 等容弛緩時間
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- most of the time 大抵の場合は
- 関
- duration、fold、hour、hr、long-term effect、moment、period、phase、stage、term
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- 関
- alleviate、ease、mitigate、mitigation、moderate、palliate、palliation、relax
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- 関
- tau、time constant
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