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Titolo:
QUANTITATIVE PERFUSION PARAMETERS OF FOCAL NODULAR HYPERPLASIA AND NORMAL LIVER PARENCHYMA AS DETERMINED BY ELECTRON-BEAM TOMOGRAPHY
Autore:
GROELL R; KUGLER C; ASCHAUER M; RIENMUELLER R; STAUBER R; TRAUNER M; MISCHINGER HJ;
Indirizzi:
GRAZ UNIV,DEPT RADIOL,AUENBRUGGERPL 9 A-8036 GRAZ AUSTRIA GRAZ UNIV,DEPT INTERNAL MED A-8036 GRAZ AUSTRIA GRAZ UNIV,DEPT SURG A-8036 GRAZ AUSTRIA
Titolo Testata:
British journal of radiology
fascicolo: 815, volume: 68, anno: 1995,
pagine: 1185 - 1189
Fonte:
ISI
Lingua:
ENG
Soggetto:
DYNAMIC CT; ADENOMA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
R. Groell et al., "QUANTITATIVE PERFUSION PARAMETERS OF FOCAL NODULAR HYPERPLASIA AND NORMAL LIVER PARENCHYMA AS DETERMINED BY ELECTRON-BEAM TOMOGRAPHY", British journal of radiology, 68(815), 1995, pp. 1185-1189

Abstract

Eight patients with known focal nodular hyperplasia (FNH) were studied by electron beam tomography (EBT) in a multisection flow mode al defined time intervals after intravenous contrast agent injection. Various regions of interest (ROIs) were defined in the areas of FNH, normal liver parenchyma, aorta and portal vein. In each ROI density changes were measured and plotted against time. In those time-density curves (TDCs) the slope, the time of maximal enhancement and the absolute density value of peak enhancement were determined. Arterial tissue perfusion was calculated for normal liver parenchyma and FNH. In all eight patients significant differences in peak density (123.88 +/- 18.92 HU vs 102.5 +/- 15.49 HU, p = 0.012), in the rate of arterial contrast enhancement (252.63 +/- 28.05 HU min(-1) as 38.88 +/- 4.19 HU min(-1), p = 0.012) and in the arterial tissue perfusion (1.36 +/- 0.19 ml min(-1) cm(-3) vs 0.21 +/- 0.03 ml min(-1) cm(-3), p = 0.012) between FNH and normal liver parenchyma were found. Perfusion values of normal liver parenchyma correspond to those determined by inert gas clearance. Further studies will determine the practicability of this quantitative method in the evaluation of global and other focal liver diseases.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 11:55:30