UNLABELLED: We evaluated ECG-gated SPECT (g-SPECT) in the measurement of absolute left ventricular (LV) volume by comparing it with left ventriculography (LVG) and with cine-MRI. METHODS: Projection data from 31 patients were acquired with a three-headed SPECT system in 12 min using a 64 x 64 matrix with 1.5 zoom (1 pixel = 4.27 mm). The R-R interval from simultaneously acquired ECG was divided into eight frames. The end-diastolic and end-systolic volumes (EDV; ESV) and LV mass were assessed by an area-length method with manual delineation of the epi- and endocardial LV borders using midventricular vertical and horizontal long-axis images. The stroke volume, LVEF and cardiac output (CO) were generated from the EDV, ESV and heart rate during the study. The g-SPECT LV values were compared with those of LVG (25 patients) and cine-MRI (18 patients). RESULTS: The g-SPECT values correlated well with those from LVG (r = 0.83 to 0.92; p < 0.001) and cine-MRI (r = 0.76 to 0.99; p < 0.001). The g-SPECT technique provides an assessment of LV volumes (EDV, ESV, stroke volume, LVEF, CO, LV mass). CONCLUSION: Despite potential problems that may cause inaccuracy and require improvements such as an accurate and reproducible automatic edge detection algorithm, g-SPECT has clinical utility in assessing global LV volumes and function.
UNLABELLED: We evaluated ECG-gated SPECT (g-SPECT) in the measurement of absolute left ventricular (LV) volume by comparing it with left ventriculography (LVG) and with cine-MRI. METHODS: Projection data from 31 patients were acquired with a three-headed SPECT system in 12 min using a 64 x 64 matrix with 1.5 zoom (1 pixel = 4.27 mm). The R-R interval from simultaneously acquired ECG was divided into eight frames. The end-diastolic and end-systolic volumes (EDV; ESV) and LV mass were assessed by an area-length method with manual delineation of the epi- and endocardial LV borders using midventricular vertical and horizontal long-axis images. The stroke volume, LVEF and cardiac output (CO) were generated from the EDV, ESV and heart rate during the study. The g-SPECT LV values were compared with those of LVG (25 patients) and cine-MRI (18 patients). RESULTS: The g-SPECT values correlated well with those from LVG (r = 0.83 to 0.92; p < 0.001) and cine-MRI (r = 0.76 to 0.99; p < 0.001). The g-SPECT technique provides an assessment of LV volumes (EDV, ESV, stroke volume, LVEF, CO, LV mass). CONCLUSION: Despite potential problems that may cause inaccuracy and require improvements such as an accurate and reproducible automatic edge detection algorithm, g-SPECT has clinical utility in assessing global LV volumes and function.
Authors: Claudia S A Lipke; Harald P Kühl; Bernd Nowak; Hans-Juergen Kaiser; Patrick Reinartz; Karl-Christian Koch; Udalrich Buell; Wolfgang M Schaefer Journal: Eur J Nucl Med Mol Imaging Date: 2004-01-14 Impact factor: 9.236
Authors: Christopher L Hansen; Richard A Goldstein; Daniel S Berman; Keith B Churchwell; C David Cooke; James R Corbett; S James Cullom; Seth T Dahlberg; James R Galt; Ravi K Garg; Gary V Heller; Mark C Hyun; Lynne L Johnson; April Mann; Benjamin D McCallister; Raymond Taillefer; R Parker Ward; John J Mahmarian Journal: J Nucl Cardiol Date: 2006-11 Impact factor: 5.952
Authors: A E Iskandrian; G Germano; W VanDecker; J D Ogilby; N Wolf; R Mintz; D S Berman Journal: J Nucl Cardiol Date: 1998 Nov-Dec Impact factor: 5.952