Planar Imaging Versus Gated Blood-Pool SPECT for the Assessment of Ventricular Performance: A Multicenter Study

Journal of Nuclear Medicine

Charles A. Barnett¹  Mohammad Kamran¹  Amjad Ali¹  Robert C. Hendel¹  Robert C. Marshall¹  Allan C. Belzberg¹  E. Gordon DePuey¹  Mark W. Groch¹  Stewart M. Spies¹  William D. Erwin¹ 

[1] Northwestern University Medical School, Chicago; Rush-Presbyterian-St. Luke’s Medical Center, Chicago; Rush University, Chicago, Illinois; St. Luke’s-Roosevelt Hospital, New York; Columbia University, New York, New York; St. Paul’s Hospital, Vancouver, British Columbia; University of British Columbia, Vancouver, British Columbia, Canada; VA Medical Center, Martinez; University of California-Davis, Davis; and Lawrence Berkeley National Laboratory, Berkeley, California Northwestern University Medical School, Chicago; Rush-Presbyterian-St. Luke’s Medical Center, Chicago; Rush University, Chicago, Illinois; St. Luke’s-Roosevelt Hospital, New York; Columbia University, New York, New York; St. Paul’s Hospital, Vancouver, British Columbia; University of British Columbia, Vancouver, British Columbia, Canada; VA Medical Center, Martinez; University of California-Davis, Davis; and Lawrence Berkeley National Laboratory, Berkeley, California Northwestern University Medical School, Chicago; Rush-Presbyterian-St. Luke’s Medical Center, Chicago; Rush University, Chicago, Illinois; St. Luke’s-Roosevelt Hospital, New York; Columbia University, New York, New York; St. Paul’s Hospital, Vancouver, British Columbia; University of British Columbia, Vancouver, British Columbia, Canada; VA Medical Center, Martinez; University of California-Davis, Davis; and Lawrence Berkeley National Laboratory, Berkeley, California

关键词: gated blood-pool imaging;    gated SPECT;    left ventricular ejection fraction;   

DOI  :  

学科分类：医学（综合）

来源: Society of Nuclear Medicine

【 摘 要 】

Gated blood-pool SPECT (GBPS), inherently 3-dimensional (3D), has the potential to replace planar equilibrium radionuclide angiography (ERNA) for computation of left ventricular ejection fraction (LVEF), analysis of regional wall motion (RWM), and analysis of right heart function. The purpose of this study was to compare GBPS and ERNA for the assessment of ventricular function in a large, multicenter cohort of patients. Methods: One hundred seventy-eight patients referred in the usual manner for nuclear medicine studies underwent ERNA followed by GBPS. Each clinical site followed a GBPS acquisition protocol that included 180° rotation, a 64 by 64 matrix, and 64 or 32 views using single- or double-head cameras. Transverse GBPS images were reconstructed with a Butterworth filter (cutoff frequency, 0.45–0.55 Nyquist; order, 7), and short-axis images were created. All GBPS studies were processed with a new GBPS program, and LVEF was computed from the isolated left ventricular chamber and compared with standard ERNA LVEF. Reproducibility of GBPS LVEF was evaluated, and right ventricular ejection fraction (RVEF) was computed in a subset of patients (n = 33). Using GBPS, RWM and image quality from 3D surface-shaded and volume-rendered cine displays were evaluated qualitatively in a subset of patients (n = 30). Results: The correlation between GBPS LVEF and planar LVEF was excellent (r = 0.92). Mean LVEF was 62.2% for GBPS and 54.1% for ERNA. The line of linear regression was GBPS LVEF = (1.04 × ERNA LVEF) + 6.1. Bland–Altman plotting revealed an increasing bias in GBPS LVEF with increasing LVEF (Y = 0.13x + 0.61; r = 0.30; mean difference = 8.1% ± 7.0%). Interoperator reproducibility of GBPS LVEF was good (r = 0.92). RVEF values averaged 59.8%. RWM assessment using 3D cine display was enhanced in 27% of the studies, equivalent in 67%, and inferior in 7%. Conclusion: GBPS LVEF was reproducible and correlated well with planar ERNA. GBPS LVEF values were somewhat higher than planar ERNA, likely because of the exclusion of the left atrium.

【 授权许可】

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