PMID: 6982102Jan 1, 1982Paper

Interobserver variability in interpreting contrast left ventriculograms (CASS)

Catheterization and Cardiovascular Diagnosis
L WexlerM P Judkins

Abstract

Randomly selected left ventricular cineangiograms performed by 14 medical centers (clinical sites) participating in a large multicenter study of medical and surgical treatment of coronary artery disease (CASS) were systematically recalled and reread by one of four designated quality control centers. The end diastolic volume (EDV), end systolic volume (ESV), and ejection fraction (EF) calculated by the quality control center were compared with those calculated by the clinical site, and correlation coefficients of 0.71, 0.84, and 0.79, respectively, were obtained. Regional left ventricular (LV) wall motion abnormalities were assessed by dividing the LV wall as viewed in the right anterior oblique (RAO) and left anterior oblique (LAO) views into five segments each and grading the motion of each segment according to six categories of increasing abnormalities from normal to aneurysm. When discrepancies based on "nearest neighbor" differences in naming adjacent segments were eliminated and only marked differences of more than one degree of severity of wall motion abnormality were considered, interobserver differences were 7% and 10% for RAO and LAO segments, respectively. Agreement was less frequent in designating a segment "aneurysm...Continue Reading

References

Feb 1, 1977·Circulation·T A DeRouenW Owen
Dec 1, 1975·Circulation·K M DetreT Takaro
Sep 1, 1975·Circulation·B R ChaitmanS H Rahimtoola
Apr 1, 1976·Circulation·L M ZirJ W Harthorne
Apr 1, 1973·Seminars in Nuclear Medicine·W L AshburnB E Sobel
Jul 1, 1972·Circulation·N J FortuinE Craige
Jul 1, 1966·The American Journal of Cardiology·H T DodgeR R Hawley
Aug 3, 1967·The New England Journal of Medicine·M V HermanR Gorlin
Oct 23, 1980·The New England Journal of Medicine·B R ChaitmanT Killip
Dec 1, 1958·Circulation·C B CHAPMANF J BONTE
Nov 1, 1961·Acta Radiologica·H ARVIDSSON

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Citations

Nov 1, 1990·Catheterization and Cardiovascular Diagnosis·G KoningJ H Reiber
Apr 8, 1998·Journal of the American College of Cardiology·R G Favaloro
Nov 1, 1990·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·P E AssmannJ R Roelandt
May 20, 2005·Echocardiography·Payam AghassiDennis A Tighe
Jan 12, 2001·Current Problems in Cardiology·M A Schmidt, M R Starling

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