Reproducibility of thrombus volume quantification in multicenter computed tomography pulmonary angiography studies

Table 1 Scanner Information and computed tomography pulmonary angiogram acquisition protocol from each scanner

Site	Scan	Manufacturer	Model	Number ofslices	Recon thickness(mm)	kVp	Pitch	Contrast agent
Academic Medical Center, Amsterdam, Netherlands	1	Siemens	Definition AS+	128	1	120	0.45	Ultravist 300
	2	Siemens	Force	384	1.5	90	0.55	Ultravist 300
Azienda Ospedaliero Universitaria Ospedali Riuniti Di Ancona, Ancona, Italy	3	Philips	Brilliance 16	16	2	120	0.9	Isovue 350
Fondazione Poliambulanza Istituto Ospedaliero, Brescia, Italy	4	GE	Optima CT660	128	0.625	120	1.375	Ultravist 370
Hôpital de la Cavale Blanche, Brest, France	5	Siemens	Definition AS +	128	1	100	1.2	Iomeron 400
Cliniques Universitaires Saint-Luc, Brussels, Belgium	6	Philips	ICT Brilliance 64	256	1	120	0.797	Iomeron 400
CHU de Clermont-Ferrand, Clermont-Ferrand, France	7	GE	Revolution GSI	64	0.625	120	1.375	Ultravist 370
Hospital Universitario Dr. Josep Trueta, Girona, Spain	8	Philips	Ingenuity CT	64	1	120	0.952	Omnipaque 350
Medical University Graz, Graz, Austria	9	Toshiba	Aquilion64	64	0.5	120	1	Optiray 350
	10	Toshiba	Aquilion64	64	0.5	120	1	Iomeron 400
Universitätsmedizin Greifswald, Greifswald, Germany	11	Siemens	Sensation 16	16	1.5	120	1.2	Iomeron 350
Hopital Michallon - CHUGA, Grenoble, France	12	GE	Optima CT 660	128	0.625	100	0.984375	Iomeron 350
Leiden University Medical Center, Leiden, Netherlands	13	Toshiba	Aquilion ONE	320	1	80	0.8129	Ultravist 370
UZ Gasthuisberg, Leuven, Belgium	14	Siemens	Definition Flash	128	1	100	0.55	Visipaque 320
	15	Siemens	Definition Flash	128	1	100	0.55	Visipaque 320
	16	Siemens	Definition Flash	128	1	100	0.55	Visipaque 320
Cedars Sinai Medical Center, Los Angeles, United States	17	GE	LightSpeed VCT	64	0.625	120	0.984375	Omnipaque 350
Hospital Universitario Ramon y Cajal, Madrid, Spain	18	Toshiba	Aquilion ONE	320	0.5	100	1.375	Iomeron 350
Intercoastal Medical Group, Sarasota, United States	19	Siemens	Definition AS+	128	0.6	120	1.1	Isovue 370
CHU de St. Etienne, St. Etienne, France	20	Siemens	Definition DS	64	1	120	1.2	Xenetix 350
Strasbourg University Hospital, Strasbourg, France	21	GE	Discovery CT750 HD	64	0.625	100	1.375	Iomeron 400
	22	Toshiba	Aquilion One	320	1	100	0.8129	Iomeron 400
Ospedale di Circolo, University of Insubria, Varese, Italy	23	Siemens	Sensation 40	40	0.75	100	1	Iomeron 370

All images were obtained with dose modulation of tube current. Filter and reconstruction kernels varied.