Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
In utero perfusing fraction maps in normal and growth restricted pregnancymeasured using IVIM echo-planar MRI
Autore:
Moore, RJ; Strachan, BK; Tyler, DJ; Duncan, KR; Baker, PN; Worthington, BS; Johnson, IR; Gowland, PA;
Indirizzi:
Univ Nottingham, Sch Phys & Astron, Magnet Resonance Ctr, Nottingham NG7 2RD, England Univ Nottingham Nottingham England NG7 2RD , Nottingham NG7 2RD, England Univ Nottingham, City Hosp, Sch Human Dev, Nottingham NG7 2RD, England Univ Nottingham Nottingham England NG7 2RD , Nottingham NG7 2RD, England
Titolo Testata:
PLACENTA
fascicolo: 7, volume: 21, anno: 2000,
pagine: 726 - 732
SICI:
0143-4004(200009)21:7<726:IUPFMI>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETIC-RESONANCE; PLACENTAL PERFUSION; BLOOD-FLOW; IN-UTERO; ULTRASOUND; DIFFUSION; WEIGHT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Gowland, PA Univ Nottingham, Sch Phys & Astron, Magnet Resonance Ctr, Nottingham NG7 2RD, England Univ Nottingham Nottingham England NG7 2RD NG7 2RD, England
Citazione:
R.J. Moore et al., "In utero perfusing fraction maps in normal and growth restricted pregnancymeasured using IVIM echo-planar MRI", PLACENTA, 21(7), 2000, pp. 726-732

Abstract

The aim of this study was to measure and portray blood movement in the placenta in vivo in normal and growth restricted pregnancies, using Intra Voxel Incoherent Motion (IVIM) magnetic resonance imaging. Thirteen patients with apparently normal healthy pregnancies were scanned at 31 +/- 7 (mean +/-s.d.) weeks gestation and seven patients with intrauterine growth restriction (IUGR) were scanned at 31 +/- 4 weeks. A region of interest (ROI) was defined encompassing the placenta between the decidual and chorionic plates. The volume of moving blood within each imaging voxel of the ROI was then calculated as a percentage of the total voxel volume (f per cent). This information was colour coded to produce maps of moving blood volume. The placenta was segmented length ways into two zones of approximately equal area, termed inner and outer, the latter being adjacent to the uterine wall. f was fitted for the average in the outer zone (f(out)) and inner zone (f(in)). The parameter (f(out) - f(in)) was then calculated for each subject. This was positive in 12/13 of the normal cases and zero for one case (+10 per cent+ 10, mean +/- s.d.). For pregnancy affected by IUGR this value was negative in all cases (- 4 per cent +/- 3). Perfusion fraction mapping identifieddifferences in function within the normal placenta in vivo, and between the placentae of normal and IUGR pregnancies. The technique has potential applications in managing, and investigating the aetiology of, pregnancy compromise. (C) 2000 Harcourt Publishers Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 17:44:29