Unni Wiggen
Nycomed
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Publication
Featured researches published by Unni Wiggen.
Magnetic Resonance Imaging | 1991
Terje Thomassen; Unni Wiggen; Helge Guttorm Gundersen; Anne Kjersti Fahlvik; Oddvar Arnfinn Aune; Jo Klaveness
Structure activity relationship (SAR) of superparamagnetic MR contrast agents is discussed based on physicochemical properties and relaxivity data of 16 different particles. All the magnetic particles reduce both relaxation times, T1 and T2. The effect on T2 is stronger than the effect on T1. The relaxation efficacy varies over a wide range. Minor modifications in the preparation of the magnetic particles result in products with different susceptibility properties. The T2 relaxivity is dependent upon the magnetic susceptibility as well as particle size. Small particles reduce the relaxation times to a larger extent than the larger particles. No significant difference in relaxivity is observed between compact and porous particles. Magnetic particles coated with nonmagnet polymer are effective relaxation agents, while nonmagnetic monodisperse particles show no effect on the relaxivity.
Archive | 1995
Jo Klaveness; Pal Rongved; Jan Solberg; Per Strande; Unni Wiggen; Keith Redford
Archive | 1991
Jo Klaveness; Per Strande; Unni Wiggen
Acta Chemica Scandinavica | 1989
Poul Erik Hansen; Antonín Lyčka; Unni Wiggen; Lars-Olof Öhman; José Ruiz; Enrique Colacio; A. M. Mulichak; Tomas Alminger; Magnus Erickson; Inger Grundevik; Inger Hagin; Kurt-Jürgen Hoffman; Svante Johansson; Sam Larsson; Ingalil Löfberg; Kristina Ohlson; Björn Persson; Inger Skånberg; Lija Tekenbergs-Hjelte
Acta Chemica Scandinavica | 1989
Dan Boström; Ingolf Crossland; Unni Wiggen; Lars-Olof Öhman; José Ruiz; Enrique Colacio; A. M. Mulichak; Tomas Alminger; Magnus Erickson; Inger Grundevik; Inger Hagin; Kurt-Jürgen Hoffman; Svante Johansson; Sam Larsson; Ingalil Löfberg; Kristina Ohlson; Björn Persson; Inger Skånberg; Lija Tekenbergs-Hjelte
Acta Chemica Scandinavica | 1989
Tore Benneche; Per Strande; Unni Wiggen; Lars-Olof Öhman; José Ruiz; Enrique Colacio; A. M. Mulichak; Tomas Alminger; Magnus Erickson; Inger Grundevik; Inger Hagin; Kurt-Jürgen Hoffman; Svante Johansson; Sam Larsson; Ingalil Löfberg; Kristina Ohlson; Björn Persson; Inger Skånberg; Lija Tekenbergs-Hjelte
Acta Chemica Scandinavica | 1989
Sissel Hansen; Leiv K. Sydnes; Unni Wiggen; Lars-Olof Öhman; José Ruiz; Enrique Colacio; A. M. Mulichak; Tomas Alminger; Magnus Erickson; Inger Grundevik; Inger Hagin; Kurt-Jürgen Hoffman; Svante Johansson; Sam Larsson; Ingalil Löfberg; Kristina Ohlson; Björn Persson; Inger Skånberg; Lija Tekenbergs-Hjelte
Acta Chemica Scandinavica | 1989
Tor Dahl; Antonín Lyčka; Unni Wiggen; Lars-Olof Öhman; José Ruiz; Enrique Colacio; A. M. Mulichak; Tomas Alminger; Magnus Erickson; Inger Grundevik; Inger Hagin; Kurt-Jürgen Hoffman; Svante Johansson; Sam Larsson; Ingalil Löfberg; Kristina Ohlson; Björn Persson; Inger Skånberg; Lija Tekenbergs-Hjelte
Acta Chemica Scandinavica | 1989
Ove Kjølberg; Arne Lund Kvernheim; Unni Wiggen; Lars-Olof Öhman; José Ruiz; Enrique Colacio; A. M. Mulichak; Tomas Alminger; Magnus Erickson; Inger Grundevik; Inger Hagin; Kurt-Jürgen Hoffman; Svante Johansson; Sam Larsson; Ingalil Löfberg; Kristina Ohlson; Björn Persson; Inger Skånberg; Lija Tekenbergs-Hjelte
Acta Chemica Scandinavica | 1989
Inger Søtofte; Ingolf Crossland; Unni Wiggen; Lars-Olof Öhman; José Ruiz; Enrique Colacio; A. M. Mulichak; Tomas Alminger; Magnus Erickson; Inger Grundevik; Inger Hagin; Kurt-Jürgen Hoffman; Svante Johansson; Sam Larsson; Ingalil Löfberg; Kristina Ohlson; Björn Persson; Inger Skånberg; Lija Tekenbergs-Hjelte
