Semi Helin - UTU Research Portal - UTU Research Portal

Semi Helin

- Senior Researcher,
Turku PET Centre (Independent units)

semhel@utu.fi

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6-[18F]Fluoro-l-DOPA Uptake in the Rat Pancreas is Dependent on the Tracer Metabolism (2014)
- Molecular Imaging and Biology
Kalliokoski T, Tuomela J, Haavisto L, Forsback S, Snellman A, Helin S, Gronroos TJ, Solin O, Haaparanta-Solin M
A PET Tracer for Brain α2C Adrenoceptors, 11C-ORM-13070: Radiosynthesis and Preclinical Evaluation in Rats and Knockout Mice (2014)
- Journal of Nuclear Medicine
Arponen E, Helin S, Marjamäki P, Grönroos T, Holm P, Löyttyniemi E, Någren K, Scheinin M, Haaparanta-Solin M, Sallinen J, Solin O
Dimeric [68Ga]DOTA-RGD Peptide Targeting αvβ3 Integrin Reveals Extracellular Matrix Alterations after Myocardial Infarction (2014)
- Molecular Imaging and Biology
Kiugel M, Dijkgraaf I, Kytö V, Helin S, Liljenbäck H, Saanijoki T, Yim CB, Oikonen V, Saukko P, Knuuti J, Roivainen A, Saraste A
[11C]PIB, [18F]FDG and MR imaging in patients with mild cognitive impairment (2013)
- European Journal of Nuclear Medicine and Molecular Imaging
Brück A, Virta JR, Koivunen J, Koikkalainen J, Scheinin NM, Helenius H, Någren K, Helin S, Parkkola R, Viitanen M, Rinne JO
Adenosine A2A receptors in secondary progressive multiple sclerosis: a [C-11]TMSX brain PET study (2013)
- Journal of Cerebral Blood Flow and Metabolism
Rissanen E, Virta JR, Paavilainen T, Tuisku J, Helin S, Luoto P, Parkkola R, Rinne JO, Airas L
Radiolabelling of the norepinephrine transporter ligand [C-11]NS8880 and its evaluation in the rat (2013)
- Journal of Labelled Compounds and Radiopharmaceuticals
Journal of Labelled Compounds and Radiopharmaceuticals Helin S, Kirjavainen A, Arponen E, Forsback S, Marjamaki P, Haaparanta-Solin M, Bender D, Peters D, Solin O
[C-11]ORM-13070, a Novel PET Tracer for Brain Alpha2C-Adrenoceptors-Radiometabolism, Plasma Pharmacokinetics, Whole-body Distribution and Radiation Dosimetry in Healthy Man (2012) Luoto P, Suilamo S, Oikonen V, Arponen E, Helin S, Hietamaki J, Holopainen A, Kailajarvi M, Rouru J, Sallinen J, Scheinin M, Virta J, Virtanen K, Roivainen A, Rinne JO
Cognitive Decline and Amyloid Accumulation in Patients with Mild Cognitive Impairment (2012)
- Dementia and Geriatric Cognitive Disorders
Koivunen J, Karrasch M, Scheinin NM, Aalto S, Vahlberg T, Någren K, Helin S, Viitanen M, Rinne JO
Amyloid PET imaging in patients with mild cognitive impairment: a 2-year follow-up study (2011)
- Neurology
Koivunen J, Scheinin N, Virta JR, Aalto S, Vahlberg T, Någren K, Helin S, Parkkola R, Viitanen M, Rinne J
Gender differences in brain serotonin transporter availability in panic disorder (2011)
- Journal of Psychopharmacology
Maron E, Toru I, Hirvonen J, Tuominen L, Lumme V, Vasar V, Shlik J, Nutt DJ, Helin S, Någren K, Tiihonen J, Hietala J
Effects of intravenous glucose on Dopaminergic function in the human brain in vivo (2007)
- Synapse
Haltia LT, Rinne JO, Merisaari H, Maguire RP, Savontaus E, Helin S, Nagren K, Kaasinen V
Effects of intravenous glucose on brain dopamine D2 receptor availability in obesity (2006)
- Synapse
Haltia LT, Rinne JO, Merisaari H, Helin S, Nagren K, Kaasinen V