Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Bjørn A. Graff"'
Autor:
Tone E. Døli Orheim, Bjørn A. Graff, Wibeke Nordhøy, Till Schellhorn, Andres Server, Roger Josefsen, Per H. Nakstad
Publikováno v:
European Journal of Radiology. 83:e156-e165
Objectives To assess the diagnostic accuracy of axial diffusivity (AD), radial diffusivity (RD), apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values derived from DTI for grading of glial tumors, and to estimate the correlation
Autor:
Trond Hagtvedt, Trond Mogens Aaløkken, Hans-Jørgen Smith, Bjørn A. Graff, Alf Kolbenstvedt, Harald Holte
Publikováno v:
Acta Radiologica. 52:1113-1118
Background Previous studies of CT enhancement of lymphomatous lymph nodes (LLN) of the neck showed that the LLN had lower enhancement values than normal lymph nodes. Purpose To elucidate the contrast medium enhancement curves of LLN in the mediastinu
Autor:
Roger Josefsen, Tone E. Døli Orheim, Till Schellhorn, P. Nakstad, Øystein B. Gadmar, Andres Server, Bjørn A. Graff
Publikováno v:
Neuroradiology. 53:435-447
To assess the diagnostic accuracy of microvascular leakage (MVL), cerebral blood volume (CBV) and blood flow (CBF) values derived from dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging (DSC-MR imaging) for grading of cerebral gli
Autor:
Geeta Gulati, Einar K. Rofstad, Bjørn A. Graff, Jon Vidar Gaustad, Kjetil G. Brurberg, Kathrine S. Øye
Publikováno v:
Microvascular Research. 75:179-187
A novel first-pass imaging method for studying blood flow in tumors and normal tissues in mouse dorsal window chamber preparations is reported in this study. A fluorescence-labeled macromolecule is administered i.v. as a bolus dose, and the signal ge
Publikováno v:
Radiotherapy and Oncology. 77:220-226
Background and purpose The spatial heterogeneity in oxygen tension (pO 2 ) in tumor tissue has been studied extensively, whereas, the information about the temporal heterogeneity is sparse. The purpose of the present study was to search for pO 2 fluc
Publikováno v:
Magnetic Resonance Imaging. 23:961-966
The purpose of this study was to use dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) to search for systematic intratumor heterogeneity in blood perfusion in human melanoma xenografts growing intradermally in BALB/c-nu/nu mice. Six xeno
Autor:
Jon Vidar Gaustad, Bjørn A. Graff, Kjetil G. Brurberg, Else Beate M. Ruud, Einar K. Rofstad, Ilana C. Benjaminsen
Publikováno v:
Journal of Magnetic Resonance Imaging. 21:792-800
Purpose To determine the intratumor heterogeneity in blood perfusion of orthotopic human melanoma xenografts by use of gadopentetate dimeglumine (Gd-DTPA)-based dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Materials and Methods Ort
Publikováno v:
Magnetic Resonance in Medicine. 51:727-735
The intratumor heterogeneity in uptake of iron oxide particles (NC100150) in human melanoma xenografts was studied by MRI and the uptake was related to the blood volume fraction, BV, and the permeability surface area product, PS, in an attempt to ide
Autor:
Trond Hagtvedt, Bjørn A. Graff, Trond Mogens Aaløkken, Harald Holte, Hans-Jørgen Smith, Alf Kolbenstvedt
Publikováno v:
Acta radiologica (Stockholm, Sweden : 1987). 54(3)
Background Previous studies of CT enhancement of lymphomatous lymph nodes (LLN) of the neck and the mediastinum showed that the LLN had lower enhancement values than normal lymph nodes. Purpose To elucidate the contrast medium enhancement curves of L
Autor:
Trond Hagtvedt, Bjørn A. Graff, Trond Mogens Aaløkken, Harald Holte, Alf Kolbenstvedt, Hans-Jørgen Smith
Publikováno v:
Acta radiologica (Stockholm, Sweden : 1987). 51(5)
Background: Previous studies of computed tomography (CT) enhancement of lymphomatous lymph nodes suggest that these nodes might have lower post contrast attenuation values than normal lymph nodes. We have previously found that the contrast medium enh