PURPOSE: High-speed (HS) single-photon emission computed tomography (SPECT) with a recently developed solid-state camera shows comparable myocardial perfusion abnormalities to those seen in conventional SPECT. We aimed to compare HS and conventional SPECT images from multiple centres with coronary angiographic findings. METHODS: The study included 50 patients who had sequential conventional SPECT and HS SPECT myocardial perfusion studies and coronary angiography within 3 months. Stress and rest perfusion images were visually analysed and scored semiquantitatively using a 17-segment model by two experienced blinded readers. Global and coronary territorial summed stress scores (SSS) and summed rest scores (SRS) were calculated. Global SSS ≥3 or coronary territorial SSS ≥2 was considered abnormal. In addition the total perfusion deficit (TPD) was automatically derived. TPD >5% and coronary territorial TPD ≥3% were defined as abnormal. Coronary angiograms were analysed for site and severity of coronary stenosis; ≥50% was considered significant. RESULTS: Of the 50 patients, 13 (26%) had no stenosis, 22 (44%) had single-vessel disease, 6 (12%) had double-vessel disease and 9 (18%) had triple-vessel disease. There was a good linear correlation between the visual global SSS and SRS (Spearman's ρ 0.897 and 0.866, respectively; p < 0.001). In relation to coronary angiography, the sensitivities, specificities and accuracies of HS SPECT and conventional SPECT by visual assessment were 92% (35/38), 83% (10/12) and 90% (45/50) vs. 84% (32/38), 50% (6/12) and 76% (38/50), respectively (p < 0.001). The sensitivities, specificities and accuracies of HS SPECT and conventional SPECT in relation to automated TPD assessment were 89% (31/35), 57% (8/14) and 80% (39/49) vs. 86% (31/36), 77% (10/13) and 84% (41/49), respectively. CONCLUSION: HS SPECT allows fast acquisition of myocardial perfusion images that correlate well with angiographic findings with overall accuracy by visual assessment better than conventional SPECT. Further assessment in a larger patient population may be needed to confirm this observation.
PURPOSE: High-speed (HS) single-photon emission computed tomography (SPECT) with a recently developed solid-state camera shows comparable myocardial perfusion abnormalities to those seen in conventional SPECT. We aimed to compare HS and conventional SPECT images from multiple centres with coronary angiographic findings. METHODS: The study included 50 patients who had sequential conventional SPECT and HS SPECT myocardial perfusion studies and coronary angiography within 3 months. Stress and rest perfusion images were visually analysed and scored semiquantitatively using a 17-segment model by two experienced blinded readers. Global and coronary territorial summed stress scores (SSS) and summed rest scores (SRS) were calculated. Global SSS ≥3 or coronary territorial SSS ≥2 was considered abnormal. In addition the total perfusion deficit (TPD) was automatically derived. TPD >5% and coronary territorial TPD ≥3% were defined as abnormal. Coronary angiograms were analysed for site and severity of coronary stenosis; ≥50% was considered significant. RESULTS: Of the 50 patients, 13 (26%) had no stenosis, 22 (44%) had single-vessel disease, 6 (12%) had double-vessel disease and 9 (18%) had triple-vessel disease. There was a good linear correlation between the visual global SSS and SRS (Spearman's ρ 0.897 and 0.866, respectively; p < 0.001). In relation to coronary angiography, the sensitivities, specificities and accuracies of HS SPECT and conventional SPECT by visual assessment were 92% (35/38), 83% (10/12) and 90% (45/50) vs. 84% (32/38), 50% (6/12) and 76% (38/50), respectively (p < 0.001). The sensitivities, specificities and accuracies of HS SPECT and conventional SPECT in relation to automated TPD assessment were 89% (31/35), 57% (8/14) and 80% (39/49) vs. 86% (31/36), 77% (10/13) and 84% (41/49), respectively. CONCLUSION: HS SPECT allows fast acquisition of myocardial perfusion images that correlate well with angiographic findings with overall accuracy by visual assessment better than conventional SPECT. Further assessment in a larger patient population may be needed to confirm this observation.
Authors: W Lane Duvall; Joseph M Sweeny; Lori B Croft; Maya H Barghash; Nitin K Kulkarni; Krista A Guma; Milena J Henzlova Journal: J Nucl Cardiol Date: 2011-06-03 Impact factor: 5.952
Authors: Hidetaka Nishina; Piotr J Slomka; Aiden Abidov; Shunichi Yoda; Cigdem Akincioglu; Xingping Kang; Ishac Cohen; Sean W Hayes; John D Friedman; Guido Germano; Daniel S Berman Journal: J Nucl Med Date: 2006-01 Impact factor: 10.057
Authors: Michael Fiechter; Jelena R Ghadri; Silke M Kuest; Aju P Pazhenkottil; Mathias Wolfrum; Rene N Nkoulou; Robert Goetti; Oliver Gaemperli; Philipp A Kaufmann Journal: Eur J Nucl Med Mol Imaging Date: 2011-07-15 Impact factor: 9.236
Authors: Ryo Nakazato; Balaji K Tamarappoo; Xingping Kang; Arik Wolak; Faith Kite; Sean W Hayes; Louise E J Thomson; John D Friedman; Daniel S Berman; Piotr J Slomka Journal: J Nucl Med Date: 2010-10-18 Impact factor: 10.057
Authors: Timothy M Bateman; Gary V Heller; A Iain McGhie; Staci A Courter; Robert A Golub; James A Case; S James Cullom Journal: J Nucl Cardiol Date: 2009-06-23 Impact factor: 5.952
Authors: Fabio P Esteves; James R Galt; Russell D Folks; Liudmila Verdes; Ernest V Garcia Journal: J Nucl Cardiol Date: 2013-11-28 Impact factor: 5.952