Publications by authors named "John Koivukangas"

27Publications

Detection of the spatial accuracy of a magnetic resonance and surgical computed tomography scanner in the region of surgical interest.

J Med Imaging (Bellingham) 2014 Apr 23;1(1):015502. Epub 2014 Apr 23.

University of Oulu , Department of Neurosurgery, Aapistie 5, Oulu 90014, Finland ; Onesys Institute , Alvallantie 40, Västerskog 01120, Finland.

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April 2014

Insomnia among brain tumor patients: a population-based prospective study of tumor patients in northern Finland.

J Psychosoc Oncol 2013 ;31(5):507-16

a University of Oulu, Department of Psychiatry, and Oulu University Hospital , Department of Psychiatry , Oulu , Finland.

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December 2013

Awake craniotomy may further improve neurological outcome of intraoperative MRI-guided brain tumor surgery.

Acta Neurochir (Wien) 2013 Oct 18;155(10):1805-12. Epub 2013 Aug 18.

Department of Neurosurgery, Oulu University Hospital, University of Oulu, Oulu, Finland,

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October 2013

Expression of VEGF and collagen XVIII in meningiomas: correlations with histopathological and MRI characteristics.

Acta Neurochir (Wien) 2013 Jun 20;155(6):989-96; discussion 996. Epub 2013 Apr 20.

Department of Neurosurgery, Institute of Clinical Medicine, University of Oulu, Oulu, P.O. Box 21, 90029 OYS, Finland.

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June 2013

Technical accuracy of optical and the electromagnetic tracking systems.

Springerplus 2013 Dec 8;2(1):90. Epub 2013 Mar 8.

Department of Mechanical Engineering, University of Oulu, PL 4200, Oulu, 90014 Finland.

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December 2013

Stereotactic operations using the o-arm.

Stereotact Funct Neurosurg 2012 17;90(6):401-9. Epub 2012 Oct 17.

Department of Neurosurgery, Oulu University Hospital, Oulu, Finland.

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May 2013

Technical accuracy of an O-arm registered surgical navigator.

Annu Int Conf IEEE Eng Med Biol Soc 2011 ;2011:2148-51

Department of Mechanical Engineering, University of Oulu, Oulu, Finland.

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June 2012

Depression in relation to anxiety, obsessionality and phobia among neurosurgical patients with a primary brain tumor: a 1-year follow-up study.

Clin Neurol Neurosurg 2011 Oct 12;113(8):649-53. Epub 2011 Jun 12.

University of Oulu, Department of Psychiatry, BOX 5000, 90014, Finland.

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October 2011

Incidence of pituitary adenomas in Northern Finland in 1992-2007.

J Clin Endocrinol Metab 2010 Sep 9;95(9):4268-75. Epub 2010 Jun 9.

Department of Otorhinolaryngology, Institute of Clinical Medicine, University of Oulu, PO Box 5000, FIN-90014 Oulu, Finland.

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September 2010

Development of an accuracy assessment phantom for surgical navigators.

Annu Int Conf IEEE Eng Med Biol Soc 2009 ;2009:1517-20

Department of Mechanical Engineering, University of Oulu, Oulu, Finland.

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March 2010

The terminal prostaglandin synthases mPGES-1, mPGES-2, and cPGES are all overexpressed in human gliomas.

Neuropathology 2009 Apr;29(2):156-65

Department of Neurosurgery, Oulu University Hospital, Oulu, Finland.

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April 2009

3D modeling-based surgical planning in transsphenoidal pituitary surgery--preliminary results.

Acta Otolaryngol 2008 Sep;128(9):1011-8

Department of Otorhinolaryngology, Head and Neck Surgery, Oulu University Hospital, Oulu, Finland.

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September 2008

Optically neuronavigated ultrasonography in an intraoperative magnetic resonance imaging environment.

Neurosurgery 2007 Apr;60(4 Suppl 2):373-80; discussion 380-1

Department of Neurosurgery, Oulu University Hospital, Oulu, Finland.

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April 2007

Decreased quality of life and depression as predictors for shorter survival among patients with low-grade gliomas: a follow-up from 1990 to 2003.

Eur Arch Psychiatry Clin Neurosci 2006 Dec 7;256(8):516-21. Epub 2006 Sep 7.

Department of Psychiatry, University of Oulu, P.O. Box 5000, 90014, Oulu, Finland.

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December 2006

Winter birth in association with a risk of brain tumor among a Finnish patient population.

Neuroepidemiology 2006 14;27(2):57-60. Epub 2006 Jul 14.

Department of Psychiatry, University of Oulu, Oulu, Finland.

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October 2006

Depression and functional outcome in patients with brain tumors: a population-based 1-year follow-up study.

J Neurosurg 2005 Nov;103(5):841-7

Departments of Psychiatry and Neurosurgery, Oulu University Hospital, Oulu, Finland.

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November 2005

Level of obsessionality among neurosurgical patients with a primary brain tumor.

J Neuropsychiatry Clin Neurosci 2005 ;17(3):399-404

Department of Psychiatry, BOX 26, 90029 OYS, Finland.

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November 2005

Gender difference in relation to depression and quality of life among patients with a primary brain tumor.

Eur Psychiatry 2006 Apr 2;21(3):194-9. Epub 2005 Sep 2.

Department of Psychiatry, University of Oulu, Box 5000, 90014 Oulu, Finland.

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April 2006

Depression in relation to survival among neurosurgical patients with a primary brain tumor: a 5-year follow-up study.

Neurosurgery 2005 Jun;56(6):1234-41; discussion 1241-2

Department of Psychiatry, University of Oulu, and Oulu University Hospital, Oulu, Finland.

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June 2005

Bilateral subthalamic nucleus stimulation improves health-related quality of life in Parkinsonian patients.

Parkinsonism Relat Disord 2005 Mar;11(2):89-94

Department of Neurosurgery, Oulu University Hospital, P.O. Box 21, FIN-90029 Oys, Finland.

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March 2005

Dynamic MR imaging of brain tumors in low field using undersampled projection reconstruction.

Magn Reson Imaging 2004 Jul;22(6):799-805

Department of Neurosurgery, Oulu University Hospital, 90029 Oulu, Finland.

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July 2004