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Impact of cardiac hybrid single-photon emission computed tomography/computed tomography imaging on choice of treatment strategy in coronary artery disease.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Publication date 2011
Author Pazhenkottil Aju P, Nkoulou Rene N, Ghadri Jelena-Rima, Herzog Bernhard A, Küest Silke M, Husmann Lars, Wolfrum Mathias, Goetti Robert, Buechel Ronny R, Gaemperli Oliver, Lüscher Thomas F,
Project Entwicklung einer neuen Hybrid-Bildgebungs-Methode zur nicht invasiven kardialen Diagnostik
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Original article (peer-reviewed)

Journal European heart journal
Volume (Issue) 32(22)
Page(s) 2824 - 9
Title of proceedings European heart journal
DOI 10.1093/eurheartj/ehr232


AIMS Cardiac hybrid imaging by fusing single-photon emission computed tomography (SPECT) myocardial perfusion imaging with coronary computed tomography angiography (CCTA) provides important complementary diagnostic information for coronary artery disease (CAD) assessment. We aimed at assessing the impact of cardiac hybrid imaging on the choice of treatment strategy selection for CAD. METHODS AND RESULTS Three hundred and eighteen consecutive patients underwent a 1 day stress/rest (99m)Tc-tetrofosmin SPECT and a CCTA on a separate scanner for evaluation of CAD. Patients were divided into one of the following three groups according to findings in the hybrid images obtained by fusing SPECT and CCTA: (i) matched finding of stenosis by CCTA and corresponding reversible SPECT defect; (ii) unmatched CCTA and SPECT finding; (iii) normal finding by both CCTA and SPECT. Follow-up was confined to the first 60 days after hybrid imaging as this allows best to assess treatment strategy decisions including the revascularization procedure triggered by its findings. Hybrid images revealed matched, unmatched, and normal findings in 51, 74, and 193 patients. The revascularization rate within 60 days was 41, 11, and 0% for matched, unmatched, and normal findings, respectively (P< 0.001 for all inter-group comparisons). CONCLUSION Cardiac hybrid imaging with SPECT and CCTA provides an added clinical value for decision making with regard to treatment strategy for CAD.