Matches in SemOpenAlex for { <https://semopenalex.org/work/W1997093570> ?p ?o ?g. }
Showing items 1 to 98 of
98
with 100 items per page.
- W1997093570 endingPage "912" @default.
- W1997093570 startingPage "901" @default.
- W1997093570 abstract "A quantitative technique is required to reduce the subjectivity and improve the reproducibility of stress echocardiography. Tissue Doppler imaging may offer these benefits, but its feasibility with exercise echocardiography (ExE) is undefined. This study sought the determinants of the exercise tissue Doppler velocity (TDV) response and the feasibility and accuracy of color TDV during ExE.Fifteen volunteers and 85 patients (age 60 +/- 10 years, 19 women) with known or suspected coronary artery disease were studied with standard 2-dimensional (2D) echocardiography and pulsed wave (PW) and color TDV before and after they underwent exercise treadmill testing. After the study PW TDV was measured in 6 basal segments, and off-line software was used to display color TDV data from all myocardial segments. Color TDV was compared with PW TDV in the basal segments at rest and stress with the use of linear regression. Color TDV in mid and basal segments was compared with wall motion on 2D echocardiography. The predictors of the TDV response to exercise were defined in a multiple linear regression. A logistic regression model was used to integrate clinical, exercise, and TDV variables for prediction of abnormal regional left ventricular function. Color and PW correlated well at rest (r = 0.81) and stress (r = 0.84), but PW was greater than color velocities at rest and stress. On the basis of 2D echocardiography, 752 myocardial segments were classified as normal in patients without evidence of coronary disease, 309 were normal in patients with abnormal wall motion in another territory, and 128 showed ischemia or scar. Segmental comparison of velocities assessed by color TDV showed that scar segments had a lower velocity than normal segments at rest and stress (P <.001). Ischemic segments had a lower peak TDV and less increment in velocity than normal segments. Heart rate, functional capacity, and regional dysfunction (scar or ischemia) were independent predictors of TDV at peak exercise. With the use of receiver operating characteristic analysis, the correction of TDV by these other variables increased the accuracy of the technique for the detection of regional left ventricular dysfunction.Color TDV is feasible during ExE. The correlation found between TDV and wall motion analysis of experienced observers indicates that TDV may be useful as a quantitative tool for interpretation of ExE." @default.
- W1997093570 created "2016-06-24" @default.
- W1997093570 creator A5018310539 @default.
- W1997093570 creator A5019605949 @default.
- W1997093570 creator A5024406367 @default.
- W1997093570 creator A5038762549 @default.
- W1997093570 creator A5074267679 @default.
- W1997093570 date "1999-11-01" @default.
- W1997093570 modified "2023-10-14" @default.
- W1997093570 title "Use of Segmental Tissue Doppler Velocity to Quantitate Exercise Echocardiography" @default.
- W1997093570 cites W1765339554 @default.
- W1997093570 cites W1973821098 @default.
- W1997093570 cites W1980003325 @default.
- W1997093570 cites W1986489726 @default.
- W1997093570 cites W1988847507 @default.
- W1997093570 cites W1991490586 @default.
- W1997093570 cites W2001698105 @default.
- W1997093570 cites W2003563731 @default.
- W1997093570 cites W2004232631 @default.
- W1997093570 cites W2015795623 @default.
- W1997093570 cites W2016644111 @default.
- W1997093570 cites W2027588229 @default.
- W1997093570 cites W2032041442 @default.
- W1997093570 cites W2037894546 @default.
- W1997093570 cites W2041962802 @default.
- W1997093570 cites W2046191049 @default.
- W1997093570 cites W2049373023 @default.
- W1997093570 cites W2058646349 @default.
- W1997093570 cites W2060576687 @default.
- W1997093570 cites W2061494226 @default.
- W1997093570 cites W2066699702 @default.
- W1997093570 cites W2066748475 @default.
- W1997093570 cites W2076793222 @default.
- W1997093570 cites W2080351010 @default.
- W1997093570 cites W2086496662 @default.
- W1997093570 cites W2116932789 @default.
- W1997093570 cites W2139949573 @default.
- W1997093570 cites W2156310318 @default.
- W1997093570 cites W2259026604 @default.
- W1997093570 cites W2334748255 @default.
- W1997093570 cites W2990123797 @default.
- W1997093570 cites W4235836536 @default.
- W1997093570 cites W4366807511 @default.
- W1997093570 doi "https://doi.org/10.1016/s0894-7317(99)70142-2" @default.
- W1997093570 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/10552350" @default.
- W1997093570 hasPublicationYear "1999" @default.
- W1997093570 type Work @default.
- W1997093570 sameAs 1997093570 @default.
- W1997093570 citedByCount "84" @default.
- W1997093570 countsByYear W19970935702012 @default.
- W1997093570 countsByYear W19970935702015 @default.
- W1997093570 countsByYear W19970935702020 @default.
- W1997093570 crossrefType "journal-article" @default.
- W1997093570 hasAuthorship W1997093570A5018310539 @default.
- W1997093570 hasAuthorship W1997093570A5019605949 @default.
- W1997093570 hasAuthorship W1997093570A5024406367 @default.
- W1997093570 hasAuthorship W1997093570A5038762549 @default.
- W1997093570 hasAuthorship W1997093570A5074267679 @default.
- W1997093570 hasConcept C126322002 @default.
- W1997093570 hasConcept C126838900 @default.
- W1997093570 hasConcept C164705383 @default.
- W1997093570 hasConcept C2778024521 @default.
- W1997093570 hasConcept C2778213512 @default.
- W1997093570 hasConcept C2779306644 @default.
- W1997093570 hasConcept C2781464450 @default.
- W1997093570 hasConcept C2909814191 @default.
- W1997093570 hasConcept C71924100 @default.
- W1997093570 hasConceptScore W1997093570C126322002 @default.
- W1997093570 hasConceptScore W1997093570C126838900 @default.
- W1997093570 hasConceptScore W1997093570C164705383 @default.
- W1997093570 hasConceptScore W1997093570C2778024521 @default.
- W1997093570 hasConceptScore W1997093570C2778213512 @default.
- W1997093570 hasConceptScore W1997093570C2779306644 @default.
- W1997093570 hasConceptScore W1997093570C2781464450 @default.
- W1997093570 hasConceptScore W1997093570C2909814191 @default.
- W1997093570 hasConceptScore W1997093570C71924100 @default.
- W1997093570 hasIssue "11" @default.
- W1997093570 hasLocation W19970935701 @default.
- W1997093570 hasLocation W19970935702 @default.
- W1997093570 hasOpenAccess W1997093570 @default.
- W1997093570 hasPrimaryLocation W19970935701 @default.
- W1997093570 hasRelatedWork W1990933139 @default.
- W1997093570 hasRelatedWork W1995260811 @default.
- W1997093570 hasRelatedWork W2033836435 @default.
- W1997093570 hasRelatedWork W2043849369 @default.
- W1997093570 hasRelatedWork W2045558190 @default.
- W1997093570 hasRelatedWork W2065994400 @default.
- W1997093570 hasRelatedWork W2090317808 @default.
- W1997093570 hasRelatedWork W2119625140 @default.
- W1997093570 hasRelatedWork W2389708132 @default.
- W1997093570 hasRelatedWork W3103458680 @default.
- W1997093570 hasVolume "12" @default.
- W1997093570 isParatext "false" @default.
- W1997093570 isRetracted "false" @default.
- W1997093570 magId "1997093570" @default.
- W1997093570 workType "article" @default.