Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Automatic quantification of left ventricular ejection fraction from gated blood pool SPECT
Autore:
Van Kriekinge, SD; Berman, DS; Germano, G;
Indirizzi:
Cedars Sinai Med Ctr, Div Med Phys & Imaging, Dept Med, Los Angeles, CA 90048 USA Cedars Sinai Med Ctr Los Angeles CA USA 90048 , Los Angeles, CA 90048 USA Cedars Sinai Med Ctr, Div Nucl Med, Dept Imaging, Los Angeles, CA 90048 USA Cedars Sinai Med Ctr Los Angeles CA USA 90048 , Los Angeles, CA 90048 USA Cedars Sinai Med Ctr, Burns & Allen Res Inst, Los Angeles, CA 90048 USA Cedars Sinai Med Ctr Los Angeles CA USA 90048 , Los Angeles, CA 90048 USA Univ Calif Los Angeles, Sch Engn & Appl Sci, Dept Comp Sci, Los Angeles, CA 90024 USA Univ Calif Los Angeles Los Angeles CA USA 90024 Los Angeles, CA 90024 USA Univ Calif Los Angeles, Sch Med, Div Nucl Med & Biophys, Los Angeles, CA 90024 USA Univ Calif Los Angeles Los Angeles CA USA 90024 Los Angeles, CA 90024 USA Univ Calif Los Angeles, Sch Med, Dept Radiol Sci, Los Angeles, CA 90024 USA Univ Calif Los Angeles Los Angeles CA USA 90024 Los Angeles, CA 90024 USA Univ Calif Los Angeles, Sch Med, Dept Med, Los Angeles, CA 90024 USA Univ Calif Los Angeles Los Angeles CA USA 90024 Los Angeles, CA 90024 USA
Titolo Testata:
JOURNAL OF NUCLEAR CARDIOLOGY
fascicolo: 5, volume: 6, anno: 1999,
pagine: 498 - 506
SICI:
1071-3581(199909/10)6:5<498:AQOLVE>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
EMISSION COMPUTED-TOMOGRAPHY; CORONARY-ARTERY DISEASE; MYOCARDIAL PERFUSION SPECT; VOLUME DETERMINATION; RADIONUCLIDE VENTRICULOGRAPHY; GEOMETRIC DETERMINATION; WALL MOTION; SCINTIGRAPHY; IMAGES; CATHETERIZATION;
Keywords:
LVEF; blood pool SPECT; surface extraction; automatic processing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Germano, G Cedars Sinai Med Ctr, Div Med Phys & Imaging, Dept Med, A042N,8700 BeverlyBlvd, Los Angeles, CA 90048 USA Cedars Sinai Med Ctr A042N,8700 Beverly Blvd Los Angeles CA USA 90048
Citazione:
S.D. Van Kriekinge et al., "Automatic quantification of left ventricular ejection fraction from gated blood pool SPECT", J NUCL CARD, 6(5), 1999, pp. 498-506

Abstract

Background Cardiac gated blood pool single photon emission computed tomography (GBPS) better separates cardiac chambers compared with planar radionuclide ventriculography (PRNV), We have developed a completely automatic algorithm to measure quantitatively the left ventricular ejection fraction (LVEF) from gated technetium 99m-red blood cells (RBC) GBPS short-axis 3-dimensional image volumes. Methods and Results. The algorithm determines an ellipsoidal coordinate system for the left ventricle and then computes a static estimate of the endocardial surface by use of counts and count gradients. A dynamic surface representing the endocardium is computed for each interval of the cardiac cycle by use of additional information from the temporal Fourier transform of the image data sets. The algorithm then calculates the left ventricular volume for each interval and computes LVEF from the end-diastolic and end-systolic volumes. The algorithm was developed in a pilot group (N = 45) and validated in a second group (N = 89) of patients who underwent PRNV and 8-interval GBPS, Technically inadequate studies (N = 38) were rejected before grouping and processing. Automatic identification and contouring of the left ventricle was successful in 121/172 patients (70%) globally and in 76/89 patients (85%) in the validation group. Correlation between LVEFs measured fromGBPS and PRNV was high (y = 2.00 + 1.01x, r = 0.89), with GBPS LVEF significantly higher than PRNV LVEF (average difference = 2.8%, P < .004). Conclusions. Our automatic algorithm agrees with conventional radionuclidemeasurements of LVEF and provides the basis for 3-dimensional analysis of wall motion.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 02:24:14