462 - CARDIAC OUTPUT BY A FOUR-DIMENSIONAL DOPPLER ECHOCARDIOGRAPHIC METHOD IN HUMANS
A Samman, B Munt, N Li, P Detmer
Vancouver, British Columbia

463 - IMAGE AND DEFECT CHARACTERISTICS WITH 99MTC-NOET VERSUS 201-Tl FOLLOWING EXERCISE STRESS AND WITH REDISTRIBUTION
HA Nasr, MM Dalipaj, LN Golanowski, BJ Chow, TD Ruddy
Ottawa, Ontario

464 - PROGNOSTIC VALUE OF MYOCARDIAL PERFUSION CONTRAST ECHOCARDIOGRAPHY IN PATIENTS WITH ISCHEMIC HEART DISEASE
D Basic, SC Siu, DM Skyba, CE Sloggett, M Jamorski, M Iwanochko, EH Yu
Toronto, Ontario

465 - IMPACT OF ATRIOVENTRICULAR COMPLIANCE ON LEFT ATRIAL AND PULMONARY ARTERIAL PRESSURES IN PATIENTS WITH SEVERE MITRAL STENOSIS
M Li, J Déry, JG Dumesnil, J-R Boudreault, J Jobin, P Pibarot
Sainte-Foy, Quebec

466 - QUANTITATIVE ECHOCARDIOGRAPHIC EVALUATION OF THE SEVERITY OF MITRAL REGURGITATION IN THE OPERATING ROOM
A Gisbert, AJ Basmadjian, V Soulière, A Denault, D Bouchard, P Couture, M Pellerin, M Carrier, S Lévesque, A Ducharme
Montreal, Quebec

467 - RELATIONSHIP BETWEEN MYOCARDIAL PERFUSION SCINTIGRAPHY AND BRACHIAL ARTERY ENDOTHELIAL FUNCTION IN SYSTEMIC LUPUS ERYTHEMATOSUS
P Harvey, RM Iwanochko, M Nikpour, J Floras, J Rouleau, D Gladman, D Ibanez, M Urowitz
Toronto, Ontario; Montreal, Quebec

468 - THE RELATIONSHIP OF TISSUE DOPPLER TO B-TYPE NATRIURETIC PEPTIDE FOLLOWING ACUTE MYOCARDIAL INFARCTION
J Jue, R McDermid, H Abbey, H Dokainish
Vancouver, British Columbia

469 - EFFECT OF PROSTHESIS-PATIENT MISMATCH AFTER AORTIC VALVE REPLACEMENT ON LEFT VENTRICULAR REMODELING IN PATIENTS WITH NORMAL AND IMPAIRED PREOPERATIVE LEFT VENTRICULAR FUNCTION
H Al-Faleh, M Ruel, KL Chan, LM Beauchesne, BK Lam, TG Mesana, IG Burwash
Ottawa, Ontario

470 - SYSTEMIC ARTERIAL COMPLIANCE IS AN IMPORTANT DETERMINANT OF LEFT VENTRICULAR DYSFUNCTION IN AORTIC STENOSIS
M Briand, L Kadem, JG Dumesnil, AG Tongue, R Rieu, P Pibarot
Sainte-Foy, Quebec; Montreal, Quebec; Marseille, France

471 - SUBMAXIMAL EXERCISE TESTING IN PATIENTS WITH HEART FAILURE: REVISITING THE CONSTANT LOAD EXERCISE PROTOCOL
M Blanchet, RJ Sheppard, N Racine, A Ducharme, M White
Montreal, Quebec