Zobrazeno 1 - 10
of 18
pro vyhledávání: '"C. Benjaminsen"'
Publikováno v:
IEEE Transactions on Signal Processing. 57:493-502
Real wavelets (or real basis functions in general) suffer from two major disadvantages: shift-variance and oscillating coefficients. This paper provides a review of these problems as well as the undecimated wavelet transform which solves the problem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3c18edb12f78ef3d18af4ce953dd4d4
https://doi.org/10.1109/tsp.2008.2007922
https://doi.org/10.1109/tsp.2008.2007922
Autor:
Einar K. Rofstad, Jon Vidar Gaustad, Ilana C. Benjaminsen, Kristin Hedalen, Tormod A.M. Egeland, Berit Mathiesen
Publikováno v:
Radiation Research. 169:689-699
The potential usefulness of gadopentetate dimeglumine (Gd-DTPA)-based dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for assessing hypoxia in tumors with significant necrosis was investigated. Small (100-350 mm(3)) and large (500-1000
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1af76dfe5257e2d992deb1f28a246a8a
https://doi.org/10.1667/rr1311.1
https://doi.org/10.1667/rr1311.1
Publikováno v:
Magnetic Resonance Imaging. 26:160-170
Tumor aggressiveness and response to therapy are influenced by the extravascular extracellular space fraction (EESF) of the malignant tissue. The EESF may, therefore, be an important prognostic parameter for cancer patients. The aim of this study was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82802deb8d9c33a252dcdecdd3e83636
https://doi.org/10.1016/j.mri.2007.06.003
https://doi.org/10.1016/j.mri.2007.06.003
Autor:
Einar K. Rofstad, Ida K. Vestvik, Jon Vidar Gaustad, Berit Mathiesen, Tormod A.M. Egeland, Ilana C. Benjaminsen
Publikováno v:
Magnetic Resonance in Medicine. 55:874-882
A noninvasive method for assessment of the extent of hypoxia in experimental and human tumors is highly needed. In this study, the potential usefulness of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) was investigated, using gadopent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22bd83f73f8d9dcd9f1be60dd32310d1
https://doi.org/10.1002/mrm.20852
https://doi.org/10.1002/mrm.20852
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84cbac11d77c4c9b1114aecaccc3d18c
https://doi.org/10.1016/j.mri.2005.09.006
https://doi.org/10.1016/j.mri.2005.09.006
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91729f93bf149aa1133114d7a62ed83b
https://doi.org/10.1002/jmri.20321
https://doi.org/10.1002/jmri.20321
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 28(5)
Purpose To investigate the potential of gadopentetate dimeglumine (Gd-DTPA)-based dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in detecting radiation-induced changes in the fraction of radiobiologically hypoxic cells in A-07 human m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffe62dcea4b6e42bd77b6a9e107eb222
https://pubmed.ncbi.nlm.nih.gov/18972344
https://pubmed.ncbi.nlm.nih.gov/18972344
Publikováno v:
ICASSP
In previous work, the authors found the lack of shift invariance of real wavelet packets very disadvantageous for speech enhancement in the case of periodic noise. Therefore, this paper investigates the positive properties of the dual-tree complex wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1ed156fe646d34b8ff0a293f7c67eb5
https://doi.org/10.1109/icassp.2008.4518348
https://doi.org/10.1109/icassp.2008.4518348
Publikováno v:
Magnetic resonance in medicine. 58(3)
Temporal heterogeneity in blood perfusion is a common phenomenon in tumors, but data characterizing the nature of the blood flow fluctuations are sparse. This study investigated the occurrence of blood flow fluctuations in A-07 melanoma xenografts by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7ccfcd2bd6685e4db89085597f2b1d0
https://pubmed.ncbi.nlm.nih.gov/17763357
https://pubmed.ncbi.nlm.nih.gov/17763357
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 26(1)
Purpose To investigate whether high-resolution images of necrotic regions in tumors can be derived from gadopentetate dimeglumine (Gd-DTPA)-based dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) series. Materials and Methods E-13 human
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c97b9481f4506c736be462d271c5736
https://pubmed.ncbi.nlm.nih.gov/17659570
https://pubmed.ncbi.nlm.nih.gov/17659570