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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
2
|
| pubmed:dateCreated |
1981-3-27
|
| pubmed:abstractText |
The authors developed and tested a simplified technique for measuring the right ventricular ejection fraction (RVEF). Following in vivo 99mTc red cell labeling, equilibrium (ECG-gated) radionuclide angiocardiography was performed in the modified left-anterior-oblique projection using a 30 degree slant-hold collimator. A single region-of-interest was defined from the ejection fraction image, and background was corrected. In 11 normal patients, the mean RVEF was 0.59 +/- 0.08 (SD). In 20 patients with suspected disease, who had RVEF measured by both equilibrium and first-pass techniques, the correlation between the two methods was excellent (r = 0.95; RVEF [first-pass] = 0.74 RVEF [equilibrium] + 0.03; Sy,x = 0.05). Interobserver correlation was also excellent (r = 0.98; Sy,x = 0.03), as was the correlation between RVEFs measured at least 60 minutes apart (r = 0.98; Sy,x = 0.03). This method was more accurate than alternative techniques, using either a background region-of-interest adjacent to the right ventricle or a fixed right ventricular region-of-interest which included the infundibulum. This simplified technique provides a reproducible method for the sequential quantitative assessment of right ventricular performance.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Feb
|
| pubmed:issn |
0033-8419
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
138
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
429-35
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| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading | |
| pubmed:year |
1981
|
| pubmed:articleTitle |
A simplified technique for measuring right ventricular ejection fraction using the equilibrium radionuclide angiocardiogram and the slant-hole collimator.
|
| pubmed:publicationType |
Journal Article
|