Zobrazeno 1 - 10
of 185
pro vyhledávání: '"J, Koivukangas"'
Publikováno v:
Journal of Neurology, Neurosurgery & Psychiatry. 72:373-377
Objectives: There is little reliable quantitative information on preoperative quality of life of patients with brain tumours. The aim of this study was to clarify the effect of the volume, location, and histological grade of brain tumours on the preo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e6592fd0ceb58f130e8519c11a9ae40
https://doi.org/10.1136/jnnp.72.3.373
https://doi.org/10.1136/jnnp.72.3.373
Akademický článek
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Publikováno v:
IEEE Transactions on Biomedical Engineering. 37:1059-1066
An ultrasonic reflection-mode CT (computed tomography) method was applied to transskull imaging of the brain. The method involves only a single transducer and a single scan to acquire data from the object. In reconstruction an ordinary Fourier slice
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5292e69400bcfc767e525c7d79267d4
https://doi.org/10.1109/10.61031
https://doi.org/10.1109/10.61031
Autor:
J. Koivukangas, Esko Alasaarela
Publikováno v:
Journal of Ultrasound in Medicine. 9:23-34
The evaluation of the properties of ultrasound diagnostic scanners has not yet been standardized. Because the image itself is the basis of diagnostic decisions, it should also be the basis of evaluation of the capabilities of scanners. This study is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c21cdd0459f1960b4100d5c898f4deee
https://doi.org/10.7863/jum.1990.9.1.23
https://doi.org/10.7863/jum.1990.9.1.23
Publikováno v:
AJNR Am J Neuroradiol
BACKGROUND AND PURPOSE:Risks associated with surgery of meningiomas, especially those located in the skull base, are influenced by tumor consistency and vascularity. The purpose of this study was to find out if vascularity, consistency, and histologi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::da45f8ce1076374414325319d9f3e6bf
https://pubmed.ncbi.nlm.nih.gov/17110681
https://pubmed.ncbi.nlm.nih.gov/17110681
Autor:
J. Koivukangas, Y. Louhisalmi
Publikováno v:
[1990] Proceedings of the Twelfth Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
Development of ultrasound-guided laser for neurosurgery is currently being clinically evaluated. The system and the method of coordinate reconstruction are presented in this paper.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8a7e7fbe8ccb1056228d26f0fd2eec2
https://doi.org/10.1109/iembs.1990.691625
https://doi.org/10.1109/iembs.1990.691625
Publikováno v:
Acta neurochirurgica. Supplement. 85
Development of an image-guided operation theatre offering multimodal information for mini-invasive neurosurgical brain tumour operations.A multi-purpose resistive low-field MR scanner with on-off capability, was installed in a radio frequency-shielde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::34c6f3ec43f1fdbba84a6eab0817fc81
https://pubmed.ncbi.nlm.nih.gov/12570146
https://pubmed.ncbi.nlm.nih.gov/12570146
Autor:
J. Koivukangas, J. Ylitalo
Publikováno v:
Proceedings., IEEE Ultrasonics Symposium.
A special ultrasonic echo-tomography method was applied to trans-skull imaging of the human brain. The method requires only a single scan to acquire data from the object. An ordinary CT-reconstruction scheme with compensation capability for the speed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b229682f5e0d2852a67442138fab601
https://doi.org/10.1109/ultsym.1989.67144
https://doi.org/10.1109/ultsym.1989.67144
Publikováno v:
IEEE Symposium on Ultrasonics.
A prototype scanner for ultrasonic echo tomography of the head was developed. The system consists of a personal computer, a single 1-MHz wide-beam transducer, transmitting/receiving electronics, and a water bath with scanning mechanics. Only a single
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36360989bd571bf93f93d5c9e40af287
https://doi.org/10.1109/ultsym.1990.171618
https://doi.org/10.1109/ultsym.1990.171618
Publikováno v:
Acta neurochirurgica. 144(3)
Several models for the application of intra-operative magnetic resonance imaging (IMRI) have recently been reported, most of them unique. Two fundamental issues need to be addressed: optimal use of the scanner to ensure a wide base for research, deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::46d1300bf2b133bf08ff821bdb5ed36b
https://pubmed.ncbi.nlm.nih.gov/11956940
https://pubmed.ncbi.nlm.nih.gov/11956940