caa a22 4500 465785263 CHVBK 20180323112007.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF00812367 doi (NATIONALLICENCE)springer-10.1007/BF00812367 Quantitative analysis of myocardial ischaemia on end-diastolic thallium 201 perfusion images [Elektronische Daten] [Gilbert Hurwitz, Monika Schwab, A. MacDonald, Albert Driedger] ECG gating of images with thallium 201 (201T1) may improve the representation of myocardial perfusion by allowing isolation of the end-diastolic (ED) portion of the cardiac cycle. To characterize this phenomenon, circumferential distribution profiles for ED and conventional total-cycle images (TC) with201T1 were analysed after summing ECG gated acquisitions; redistribution was defined as net washing of201T1 for specific myocardial segments visualized on the left anterior oblique images. Scintigraphic data were compared with the presence of coronary stenoses in 150 patients. ED images had relatively less activity in the inferoseptal and inferoapical region than TC profiles. The ED mode of washout analysis provided more frequent confirmation of visually suggested redistribution than did the TC mode (84% incidence of net wash in for ED, 69% for TC). ED analysis showed a higher incidence of net201T1 wash in in relation to critical circumflex and left anterior descending artery lesions, but yielded a similar overall performance to TC analysis in distinguishing patients with diseased coronary arteries from normal subjects. Thus, in selected cases, analysis of ED images could assist in confirming 2°1T1 redistribution. Springer-Verlag, 1990 Thallium 201 (201T1) nationallicence Myocardial perfusion nationallicence Redistribution nationallicence ECG gating nationallicence Hurwitz Gilbert Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut Schwab Monika Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut MacDonald A. Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut Driedger Albert Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut European Journal of Nuclear Medicine Springer-Verlag 17/5(1990-05-01), 257-263 0340-6997 17:5<257 1990 17 259 https://doi.org/10.1007/BF00812367 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00812367 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hurwitz Gilbert Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut NATIONALLICENCE 700 1- Schwab Monika Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut NATIONALLICENCE 700 1- MacDonald A. Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut NATIONALLICENCE 700 1- Driedger Albert Department of Diagnostic Radiology/Nuclear Medicine, University of Western Ontario and Victoria Hospital, 375 South St., N6A 4G5, London, Ontario, Canada aut NATIONALLICENCE 773 0- European Journal of Nuclear Medicine Springer-Verlag 17/5(1990-05-01), 257-263 0340-6997 17:5<257 1990 17 259 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer