PMID- 25698473 OWN - NLM STAT- MEDLINE DCOM- 20160411 LR - 20240130 IS - 1532-6551 (Electronic) IS - 1071-3581 (Linking) VI - 22 IP - 3 DP - 2015 Jun TI - Gated blood pool SPECT: The estimation of right ventricular volume and function is algorithm dependent in a clinical setting. PG - 483-92 LID - 10.1007/s12350-014-0062-7 [doi] AB - BACKGROUND: Gated blood pool SPECT (GBPS) requires further validation for the assessment of the right ventricle (RV). This study evaluated three algorithms: BP-SPECT, QBS, and TOMPOOL (results are referred using this order). We compared (1) their "quantitative-accuracy": estimation of RV ejection fraction (EF), end-diastolic volume (EDV), and cardiac output (CO); (2) their "qualitative-accuracy": threshold values allowing diagnosing an impairment of the RV function; (3) their reproducibility: inter-observer relative variability (IOV). METHODS AND RESULTS: Forty-eight consecutive patients underwent GBPS. Recommended reference standards were used: cardiac magnetic resonance imaging (CMR) (EDV, EF, n = 48), catheter measurements from thermodilution (TD) (CO, n = 25). (1) "Quantitative-accuracy": r = 0.42, 0.30, 0.42 for RVEF (CMR); r = 0.69, 0.77, 0.53 for RVEDV (CMR); 0.32, 0.36, 0.52 for RCO (TD). (2) "Qualitative-accuracy": optimal thresholds were 54.7%, 38.5%, 45.2% (AUC: 0.83, 0.80, 0.79) for RVEF; 229, 180, 94 mL (AUC: 0.83, 0.81, 0.81) for RVEDV; 4.1, 4.4, 2.6 L.minute(-1) (AUC: 0.73, 0.77, 0.80) for RCO. (3) Reproducibility: IOV was 5% +/- 6%, 8% +/- 12%, 17% +/- 18% for RVEF; 6% +/- 8%, 4% +/- 4%, 21% +/- 18% for RVEDV; 8% +/- 8%, 11% +/- 15%, 24% +/- 20% for RCO. CONCLUSION: Diagnostic accuracies are similar. A CMR-based calibration is required for a quantitative-analysis (cautious interpretation) or an accurate qualitative analysis (thresholds must be adjusted). Automatic procedures (BP-SPECT, QBS) offer the best compromise accuracy/reproducibility. FAU - Dercle, Laurent AU - Dercle L AD - Department of Nuclear Medicine, Toulouse University Hospital, 1, avenue Jean Poulhes, TSA 50032, 31059, Toulouse Cedex 9, France, laurent.dercle@gmail.com. FAU - Ouali, Monia AU - Ouali M FAU - Pascal, Pierre AU - Pascal P FAU - Giraudmaillet, Thomas AU - Giraudmaillet T FAU - Chisin, Roland AU - Chisin R FAU - Lairez, Olivier AU - Lairez O FAU - Marachet, Marie-Agnes AU - Marachet MA FAU - Rousseau, Herve AU - Rousseau H FAU - Bastie, Delphine AU - Bastie D FAU - Bouallegue, Faycal Ben AU - Bouallegue FB FAU - Berry, Isabelle AU - Berry I LA - eng PT - Journal Article DEP - 20150220 PL - United States TA - J Nucl Cardiol JT - Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology JID - 9423534 SB - IM CIN - J Nucl Cardiol. 2015 Jun;22(3):493-5. PMID: 25795395 MH - Adult MH - Aged MH - Algorithms MH - Automation MH - Diastole MH - Female MH - *Gated Blood-Pool Imaging MH - Heart Ventricles/*diagnostic imaging MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Observer Variation MH - Prospective Studies MH - Reference Standards MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Thermodilution MH - *Tomography, Emission-Computed, Single-Photon MH - Ventricular Dysfunction, Right/diagnostic imaging EDAT- 2015/02/24 06:00 MHDA- 2016/04/12 06:00 CRDT- 2015/02/21 06:00 PHST- 2014/10/29 00:00 [received] PHST- 2014/12/13 00:00 [accepted] PHST- 2015/02/21 06:00 [entrez] PHST- 2015/02/24 06:00 [pubmed] PHST- 2016/04/12 06:00 [medline] AID - S1071-3581(23)07086-1 [pii] AID - 10.1007/s12350-014-0062-7 [doi] PST - ppublish SO - J Nucl Cardiol. 2015 Jun;22(3):483-92. doi: 10.1007/s12350-014-0062-7. Epub 2015 Feb 20.