CT Detection of Myocardial Blood Volume Deficits: Dual-Energy CT Compared with Single-Energy CT Spectra – Performance of Dual-Energy CT and Single-Energy CT in Detection of Myocar…
EM Arnoldi, B Ruzsics, YS Lee, M Gebregziabher, MF Reiser, P Costello, UJ Schoepf · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2010 · Heft 01
Bibliografische Angaben
Zusammenfassung
Purpose: Recently, dual-energy CT (DECT) has been described for the detection of myocardial blood volume deficits but the performance of DECT for this application has not systematically been compared with single-energy CT spectra. Methods: 50 patients (32 men, age 61±12y) underwent SPECT myocardial perfusion imaging and DECT on a dual-source CT scanner. The A- and B-tubes were operated with 140kV and 80kV or 100kV, respectively. DECT raw data was reconstructed by: 1) only using high (140kV) energy CT spectra; 2) only using low (80kV/100kV) energy CT spectra, which have been described as superior for detection of…