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Titolo:
3-DIMENSIONAL VOLUMETRIC ULTRASOUND IMAGING OF ARTERIAL PATHOLOGY FROM 2-DIMENSIONAL INTRAVASCULAR ULTRASOUND - AN IN-VITRO STUDY
Autore:
CHANDRASEKARAN K; SEHGAL CM; HSU TL; YOUNG NA; DADAMO AJ; ROBB RA; PANDIAN NG;
Indirizzi:
HAHNEMANN UNIV,LIKOFF CARDIOVASC INST,DIV CARDIOVASC DIS,CARDIAC ULTRASOUND LAB PHILADELPHIA PA 00000 TUFTS UNIV BOSTON MA 02111 TUFTS UNIV NEW ENGLAND MED CTR BOSTON MA 02111
Titolo Testata:
Angiology
fascicolo: 4, volume: 45, anno: 1994,
pagine: 253 - 264
SICI:
0003-3197(1994)45:4<253:3VUIOA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
3-DIMENSIONAL RECONSTRUCTION; BALLOON ANGIOPLASTY; INVITRO VALIDATION; CORONARY; DISPLAY; IMAGES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
K. Chandrasekaran et al., "3-DIMENSIONAL VOLUMETRIC ULTRASOUND IMAGING OF ARTERIAL PATHOLOGY FROM 2-DIMENSIONAL INTRAVASCULAR ULTRASOUND - AN IN-VITRO STUDY", Angiology, 45(4), 1994, pp. 253-264

Abstract

The objectives of this study were to evaluate: (1) the feasibility ofgenerating three-dimensional (3-D) ultrasound (US) volumetric images of arterial segments from intravascular (nr) US images by retaining full range of gray levels; (2) the feasibility of volumetric quantitation of various arterial wall pathology from the 3-D volume US images of arterial segments. IVUS provides morphologic details of arterial wall diseases. This is seen as variation in gray levels. However, when a 3-D US image is generated currently, the full range of gray levels is not utilized. This limits optimal assessment of arterial wall pathology. Sequential cross-sectional IVUS images from 11 arterial segments consisting of various pathology were obtained in vitro by calibrated withdrawal of an IVUS catheter. These images were digitized by an 8 bit digitizer to retain full 256 gray levels of brightness. 3-D volume generation was carried out using ''ANALYZE'' software. After the IVUS imaging, arterial segments were sectioned transversely in a 0.3-0.4 mm crosssection and stained with hematoxylin, eosin and elastin. Geometrical measurements and gross morphological changes of the arterial segments were noted and correlated with the corresponding section of the image from the three-dimensional volume. Arterial wall pathology, its extentand its effect on lumen geometry were easily appreciated in multiple tomographic sections of a 3-D volume image. Similarly, arterial wall pathology was easily quantitated from 3-D volume. The above assessmentswere only feasible by retaining full range of gray levels in the 3-D volume image. This study indicates that (1) it is feasible to generatea 3-D US volume image by retaining full range of gray levels from IVUS images, (2) retaining full range of gray levels allows optimal assessment of arterial wall pathology and its extent in 3-D volume, and (3)IVUS allows quantitation of arterial wall pathology, and thereby one can assess the effect of intervention.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 15:49:39