ISSN:
1619-7089
Keywords:
81mKr
;
Radionuclide ventriculography
;
Right ventricular function
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Right heart81mKr equilibrium radionuclide ventriculography was used to derive right ventricular ejection fraction (RVEF) in 12 healthy male volunteers. Anatomical lung subtraction using99mTc-MAA perfusion scintigraphy was compared with conventional background correction and the effect of imaging projection on the techniques of image analysis evaluated. Both intra and inter observer variability were reduced by anatomical lung subtraction when compared to conventional background correction. In the right anterior oblique (RAO) projection, background corrected RVEF was lower than lung subtracted RVEF - 0.544 ±0.05 and 0.612±0.08 (mean ± SD) (P〈0.02). Lung subtracted RVEF in the anterior projection was lower than that with background correction (P〈0.05) and lower than lung subtracted RVEF in the RAO projection (P 〈 0.001). We conclude that optimal separation of right heart structures is achieved in the RAO projection and that reproducibility of the analytical technique is improved by anatomical lung subtraction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01465916
