Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Matti O. Koskinen"'
Autor:
Antti P. Happonen, Matti O. Koskinen
Publikováno v:
International Journal of Biomedical Imaging, Vol 2007 (2007)
We discuss data filtering prior to image reconstruction. For this kind of filtering, the radial direction of the sinogram is routinely employed. Recently, we have introduced an alternative approach to sinogram data processing, exploiting the angular
Externí odkaz:
https://doaj.org/article/b74e212c084649529177d89e64985b5d
Publikováno v:
Respiratory Medicine. 97:152-158
Pulmonary distribution and lung functions were evaluated during a 4-month inhaled corticosteroid treatment period in 10 steroid-naı̈ve novel asthmatics with normal or slightly reduced lung functions. Patients were given a total daily dose of 1000
Publikováno v:
Respiratory Medicine. 96(12):999-1005
The pulmonary distribution and clearance of 99mTc-labelled beclomethasone dipropionate (Bec)–dilauroylphosphatidylcholine (DLPC) were compared in nine asthmatic patients on inhaled steroids after a 1-week medical treatment period of long-acting β2
Autor:
Matti O. Koskinen, M. Vidgren, J. Clifford Waldrep, Väinö Turjanmaa, S. Marisanna Saari, Markku M. Nieminen
Publikováno v:
Chest. 113:1573-1579
To compare the distribution and clearance of inhaled beclomethasone dipropionate (Bec)-dilauroylphosphatidylcholine (DLPC) liposomes in patients with mild and severe asthma.A 99mTc-labeled Bec-DLPC suspension was delivered via a nebulizer (Aerotech I
Autor:
Matti Penttilä, Matti O. Koskinen, Väinö Turjanmaa, Juhani Pukander, Markus Rautiainen, Jussi Laranne
Publikováno v:
American Journal of Rhinology. 8:285-290
This is one of the first human studies of maxillary sinus mucociliary activity using human serum albumin labelled with 99m-technetium (99mTc-HSA) as a tracer in patients suffering from recurrent or chronic maxillary sinusitis. The tracer was injected
Publikováno v:
The International Journal of Cardiac Imaging. 10:123-129
Myocardial metabolism in exercise was determined by studying 21 syndromeX patients and 14 healthy volunteers with an aromatic fatty acid analogue IPPA and a gamma camera. We developed criteria for visual semiquantitative assessment of relative segmen
Autor:
Leena K. Koskinen, Matti O. Koskinen
Publikováno v:
Journal of Liquid Chromatography. 16:3171-3184
A microcomputer program is presented for the analysis and integration of peaks in chromatography using numerical gaussian fittings and repetitive peelings. The method is based on a IBM compatible PC microcomputer and Basic language. Data is transport
Autor:
Antti P. Happonen, Matti O. Koskinen
Publikováno v:
Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 31(8)
Single photon emission computed tomography (SPECT) provides a method to obtain three-dimensional images of blood perfusion. In cardiac stress–rest SPECT studies, coronary artery disease can be examined by comparing intensity differences of the acqu
Publikováno v:
European journal of nuclear medicine. 27(9)
Filtered back-projection (FBP) is generally used as the reconstruction method for single-photon emission tomography although it produces noisy images with apparent streak artefacts. It is possible to improve the image quality by using an algorithm wi
Publikováno v:
International journal of pharmaceutics. 181(1)
The pulmonary distribution and clearance of 99mTc-labelled beclomethasone dipropionate (Bec) dilauroylphosphatidylcholine (DLPC) and dipalmitoylphosphatidylcholine (DPPC) liposomes were compared in 11 healthy volunteers using gamma scintigraphy. As d