Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
A SEMIAUTOMATED METHOD FOR EDGE-DETECTION IN THE EVALUATION OF LEFT-VENTRICULAR FUNCTION USING ECG-GATED SINGLE-PHOTON EMISSION TOMOGRAPHY
Autore:
YANG KTA; CHEN HD;
Indirizzi:
CHANGHUA CHRISTIAN HOSP,DEPT NUCL MED CHANGHUA 500 TAIWAN CHANGHUA CHRISTIAN HOSP,DIV CARDIOL CHANGHUA 500 TAIWAN
Titolo Testata:
European journal of nuclear medicine
fascicolo: 11, volume: 21, anno: 1994,
pagine: 1206 - 1211
SICI:
0340-6997(1994)21:11<1206:ASMFEI>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECT; TECHNETIUM-99M-SESTAMIBI;
Keywords:
TL-201 MYOCARDIAL GATED SINGLE PHOTON EMISSION TOMOGRAPHY; ECG-GATED SINGLE-PHOTON EMISSION TOMOGRAPHY; TL-201 SCINTIGRAPHY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
K.T.A. Yang e H.D. Chen, "A SEMIAUTOMATED METHOD FOR EDGE-DETECTION IN THE EVALUATION OF LEFT-VENTRICULAR FUNCTION USING ECG-GATED SINGLE-PHOTON EMISSION TOMOGRAPHY", European journal of nuclear medicine, 21(11), 1994, pp. 1206-1211

Abstract

Thallium-201 gated single-photon emission tomography (GSPET) of myocardium was performed at rest in 18 patients. Images were reconstructed to obtain end-diastolic (ED) and end-systolic (ES) images. The endocardial and epicardial edges of the left ventricle (LV) for the ED and ESimages were defined for the mid-ventricular images of the short-axis slices, using a semi-automated method. LV wall thickness was measured for ED and ES images at 10 degrees intervals. Mean LV thickness was derived as the mean of the LV thickness for the three mid-ventricular slices. The systolic thickening (ST) was derived as: mean LV thickness (ES) mean LV thickness (ED). The systolic thickening ratio (STR) was defined as: ST/mean LV thickness (ED). LV cavity area was measured. The dilation ratio (DR) was defined as: [mean cavity area (ED) - mean cavity area (ES)]/mean cavity area (ED). LV ejection fraction (LVEF) was estimated using technetium-99m gated blood pool study. There was a linear correlation between LVEF and ST (r=0.85), LVEF and STR (r=0.77) andLVEF and DR (r=0.81). There was a strong correlation (r=0.85) betweenregional STR and regional percent count increase in 52 segments whichdid not have perfusion defects. As well as for the evaluation of myocardial perfusion, GSPET images can be of use for the assessment of LV function using an appropriate method for LV edge detection.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/05/20 alle ore 16:49:23