Zobrazeno 1 - 10
of 58
pro vyhledávání: '"V.-P. Poutanen"'
Publikováno v:
European Journal of Radiology Open, Vol 8, Iss , Pp 100345- (2021)
Background: Internationally, the typical allowed difference between the measured radiation dose and dose reported by a computed tomography (CT) scanner is ±20 %. The objective is to describe a method in order to analyse this difference in a CT scann
Externí odkaz:
https://doaj.org/article/a4d9ecf0d45b43df9167e6c398c5410e
Publikováno v:
European Journal of Radiology Open
European Journal of Radiology Open, Vol 8, Iss, Pp 100345-(2021)
European Journal of Radiology Open, Vol 8, Iss, Pp 100345-(2021)
Highlights • There is variation in the difference between the radiation dose reported by the CT scanner and actual measured dose. • This variation is substantial and may differ from zero. • To achieve more precise radiation dose data, especiall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b5ba67e29a032e1d448e424a242e2b5
https://doi.org/10.1016/j.ejro.2021.100345
https://doi.org/10.1016/j.ejro.2021.100345
Autor:
V P Poutanen, R I Pajari, M J Taavitsainen, R O Raninen, M S Pamilo, P. Hekali, Marjatta Leirisalo-Repo, Markku Kupari
Publikováno v:
Scandinavian Journal of Rheumatology. 29:56-61
To evaluate the accuracy of ultrasonography (US) in the detection and quantification of arterial involvement in Takayasu's arteritis (TA).The common carotid and subclavian arteries, and the abdominal aorta of 15 patients with TA were studied by Color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba060595628d3d83139e45e99452aa6e
https://doi.org/10.1080/030097400750001815
https://doi.org/10.1080/030097400750001815
Autor:
Toivo Katila, Päivi Nikkinen, K. Liewendahl, Ari Visa, Outi Sipilä, Sauli Savolainen, H. Pohjonen, V.-P. Poutanen
Publikováno v:
University of Helsinki
Phantom experiments and simulations were performed to evaluate the significance of different error sources in a clinical registration procedure for brain SPET and MRI based on external markers. The results from the phantom experiments were used to ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a867052255f1944b8463f55a5cde918
https://doi.org/10.1097/00006231-199706000-00004
https://doi.org/10.1097/00006231-199706000-00004
Publikováno v:
Radiology. 198:487-495
To characterize biatrial phasic volumetric function in dilated and hypertrophic cardiomyopathy with cine magnetic resonance (MR) imaging.Eight patients with dilated cardiomyopathy (mean age, 47 years), eight with hypertrophic cardiomyopathy (mean age
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5975be6da19077e7ce89c651267060ec
https://doi.org/10.1148/radiology.198.2.8596854
https://doi.org/10.1148/radiology.198.2.8596854
Publikováno v:
Heart. 74:34-39
BACKGROUND--The idea that blood passes through the left ventricular outflow tract with a flat velocity profile has recently been questioned. OBJECTIVE--To construct flow velocity profiles by magnetic resonance imaging over the whole cross sectional s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1091ae16fb130e531c82e1616b424b56
https://doi.org/10.1136/hrt.74.1.34
https://doi.org/10.1136/hrt.74.1.34
Autor:
Riku Kivisaari, Leena Kivisaari, P. Laippala, V.-P. Poutanen, P. Laurila, P. Pitkäranta, A. Piironen
Publikováno v:
Acta Radiologica. 36:182-187
The effects of acute pancreatitis on MR imaging signal intensities (SIs) were determined in an experimental study at 1.0 T. Oedematous pancreatitis was induced in 9 piglets and haemorrhagic pancreatitis in 11 piglets. Each animal served as its own co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a32a3adf1c32014e51d3ccdaa54785f7
https://doi.org/10.3109/02841859509173375
https://doi.org/10.3109/02841859509173375
Publikováno v:
Radiology. 191:137-142
To assess magnetic resonance (MR) imaging of the right atrium by measuring volumes of right atrial casts and determining right atrial volume cycles in healthy subjects.Fourteen human cadaveric atrial casts were imaged and right atrial volumes of eigh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fee6414f6b5ca0846aa70c414cfe56f
https://doi.org/10.1148/radiology.191.1.8134560
https://doi.org/10.1148/radiology.191.1.8134560
Publikováno v:
Magnetic Resonance Imaging. 10:989-995
A method for windowing specific T1 values is presented. A 1.0 T imager with two routine pulse sequences was employed: A T1-weighted spin echo (SE) sequence and a short tau inversion recovery STIR sequence (fat-suppressed IR). A T1 window for fat was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88679b6804ef48098f52059ff372f528
https://doi.org/10.1016/0730-725x(92)90454-8
https://doi.org/10.1016/0730-725x(92)90454-8
Autor:
Tyrone D. Cannon, Jaakko Kaprio, Timo Partonen, Tuula Kieseppä, Tgm Van Erp, Jari Haukka, V-P Poutanen, Jan-Erik Lönnqvist
Publikováno v:
University of Helsinki
Kieseppa T, van Erp TGM, Haukka J, Partonen T, Cannon TD, Poutanen V-P, Kaprio J, Lonnqvist J. The volumetric findings in MRI brain study of bipolar twins and their healthy co-twins Bipolar Disord 2002: 4(Suppl. 1): 29–30. © Blackwell Munksgaard,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f09d640cc3bde49d621475092f77f82
https://pubmed.ncbi.nlm.nih.gov/12479672
https://pubmed.ncbi.nlm.nih.gov/12479672