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1. (WO2010018501) CONSTRUCTION DE MASQUE POUR ANGIOGRAPHIE NUMÉRIQUE CARDIAQUE
Dernières données bibliographiques dont dispose le Bureau international   

N° de publication :    WO/2010/018501    N° de la demande internationale :    PCT/IB2009/053446
Date de publication : 18.02.2010 Date de dépôt international : 06.08.2009
CIB :
A61B 6/00 (2006.01)
Déposants : KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven (NL) (Tous Sauf US).
FLORENT, Raoul [FR/FR]; (NL) (US Seulement).
AUVRAY, Vincent, A. [FR/FR]; (NL) (US Seulement).
BONNEFOUS, Odile [FR/FR]; (NL) (US Seulement)
Inventeurs : FLORENT, Raoul; (NL).
AUVRAY, Vincent, A.; (NL).
BONNEFOUS, Odile; (NL)
Mandataire : VAN VELZEN, Maaike; (NL)
Données relatives à la priorité :
08305472.6 13.08.2008 EP
Titre (EN) MASK CONSTRUCTION FOR CARDIAC SUBTRACTION
(FR) CONSTRUCTION DE MASQUE POUR ANGIOGRAPHIE NUMÉRIQUE CARDIAQUE
Abrégé : front page image
To provide an improved method for achieving DSA images where the effect of residual motions in cardiac DSA during the perfusion phase is reduced and in order to display subtracted images containing less motion artefacts, a method of performing digital subtraction angiography DSA in an imaging apparatus comprises the steps of generating a first image sequence of mask images (10) of a subject to be examined, generating at least one first contrast image (22) at a first phase (16) whereby in the first contrast image part of the subject has a different contrast than in said first image sequence, subtracting the mask images (10) from the at least one first contrast image (22) generating a first DSA image sequence (24), subtracting the DSA images of the first DSA image sequence (24) from the first contrast image (22) within the first phase (16) generating a sequence of extended mask images (32); generating a second contrast image (34) with the imaging system at a second phase (18), said second phase (18) being separated from the first phase (16) by a predetermined phase dividing time limit (20), subtracting the images of the sequence of the extended mask images (32) from the second contrast image (34) generating a second DSA image sequence (38), displaying the second DSA image sequence (38) on a display (28).
États désignés : AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
Organisation régionale africaine de la propriété intellectuelle (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Office eurasien des brevets (OEAB) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
Office européen des brevets (OEB) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
Organisation africaine de la propriété intellectuelle (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Langue de publication : anglais (EN)
Langue de dépôt : anglais (EN)