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Titolo:
A COMPARATIVE-STUDY OF SCATTER CORRECTION METHODS FOR SCINTIGRAPHIC IMAGES
Autore:
BONNIN F; BUVAT I; BENALI H; DIPAOLA R;
Indirizzi:
INST GUSTAVE ROUSSY,INSERM,U66,39 RUE CAMILLE DESMOULINS F-94805 VILLEJUIF FRANCE
Titolo Testata:
European journal of nuclear medicine
fascicolo: 5, volume: 21, anno: 1994,
pagine: 388 - 393
SICI:
0340-6997(1994)21:5<388:ACOSCM>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
EMISSION COMPUTED-TOMOGRAPHY; WINDOW COMPTON CORRECTION; NUCLEAR-MEDICINE; DUAL-WINDOW; SPECT; ENERGY; QUANTIFICATION; COMPENSATION; DECONVOLUTION; SUBTRACTION;
Keywords:
SCATTER CORRECTION; TC-99M HYDROXYMETHYLENE DIPHOSPHONATE BONE SCINTIGRAPHY; SCATTER WINDOW SUBTRACTION; FACTOR ANALYSIS OF MEDICAL IMAGE SEQUENCES USING TARGET APEX-SEEKING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
F. Bonnin et al., "A COMPARATIVE-STUDY OF SCATTER CORRECTION METHODS FOR SCINTIGRAPHIC IMAGES", European journal of nuclear medicine, 21(5), 1994, pp. 388-393

Abstract

Phantom studies have demonstrated that factor analysis of medical image sequences using target apex-seeking (FAMIS-TAS) applied to spectralscintigraphic image sequences is an efficient adaptive scatter correction method. We assessed the improvement in quality of clinical imagesusing FAMIS-TAS as compared with two other scatter correction techniques: conventional 20% photopeak window (PW) and scatter window subtraction (SWS). Thirty normal technetium-99m hydroxymethylene diphosphonate bone scans were processed. Bone to soft tissue contrasts and signal-to-noise and contrast-to-noise ratios were measured. The overall imagequality was evaluated using an observer testing questionnaire submitted to four physicians. Quantitative parameters showed that FAMIS-TAS images displayed the best bone to soft tissue contrasts and contrast-to-noise ratios, but the lowest signal-to-noise ratios. PW images presented the lowest contrasts and contrast-to-noise ratios, and the highestsignal-to-noise ratios. SWS gave intermediate results. According to the observer testing results, PW images showed the lowest bone to soft tissue contrasts and the highest signal-to-noise ratios. FAMIS-TAS images showed the lowest signal-to-noise ratios. The images processed by the three methods displayed the same anatomical information.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 06:42:55