Viljami Sairanen
@viljamisairanen.bsky.social
Medical Physicist | PhD | Entrepreneur
Researching brain models (dMRI) at Baby Brain Activity Center of the University of Helsinki, https://www.babacenter.fi/
Department chief physicist in radiology at Hämeenlinna Central Hospital, Finland
Researching brain models (dMRI) at Baby Brain Activity Center of the University of Helsinki, https://www.babacenter.fi/
Department chief physicist in radiology at Hämeenlinna Central Hospital, Finland
Pinned
Cracking the brain with dMRI
YouTube video by Viljami Sairanen
youtu.be
Now that this platform seems to be (blue)skyrocketing, it is probably good time to share my research topic: cracking the brain with #dMRI
#MRI #minätutkin
youtu.be/8lw-wkL3vXY?...
#MRI #minätutkin
youtu.be/8lw-wkL3vXY?...
Oletko miettinyt, mikä ihme on #sairaalafyysikko tai, mitä kummaa moinen tekee? Tässäpä sinulle hieno yhteenveto alasta: youtu.be/HlFP2CqTiAs?...
Iloista sairaalafysiikan päivää!
Iloista sairaalafysiikan päivää!
Mitä sairaalafyysikot tekevät? (ENG subs)
YouTube video by Sairaalafyysikot
youtu.be
November 7, 2025 at 1:48 PM
Oletko miettinyt, mikä ihme on #sairaalafyysikko tai, mitä kummaa moinen tekee? Tässäpä sinulle hieno yhteenveto alasta: youtu.be/HlFP2CqTiAs?...
Iloista sairaalafysiikan päivää!
Iloista sairaalafysiikan päivää!
Is this a tractogram of the default mode network or a Romulan warship from Star Trek?
September 18, 2025 at 7:21 AM
Is this a tractogram of the default mode network or a Romulan warship from Star Trek?
Reposted by Viljami Sairanen
📢 Excited to share our new paper from Synnöve Carlson’s team! We show how prematurity impacts higher-order brain network dynamics in school-aged children and adolescents:
doi.org/10.1016/j.ne...
#Neuroscience #Brain #Prematurity #BrainHealth #Neurodevelopment
doi.org/10.1016/j.ne...
#Neuroscience #Brain #Prematurity #BrainHealth #Neurodevelopment
September 15, 2025 at 8:19 AM
📢 Excited to share our new paper from Synnöve Carlson’s team! We show how prematurity impacts higher-order brain network dynamics in school-aged children and adolescents:
doi.org/10.1016/j.ne...
#Neuroscience #Brain #Prematurity #BrainHealth #Neurodevelopment
doi.org/10.1016/j.ne...
#Neuroscience #Brain #Prematurity #BrainHealth #Neurodevelopment
Gambling in science vol 56: this time I refused to review a paper in MDPI journal as they practice gambling (reviewer has a random chance to obtain reduction on their APC fee).
What do you think? Is this gambling or are you just wrong?
What do you think? Is this gambling or are you just wrong?
July 28, 2025 at 1:16 PM
Gambling in science vol 56: this time I refused to review a paper in MDPI journal as they practice gambling (reviewer has a random chance to obtain reduction on their APC fee).
What do you think? Is this gambling or are you just wrong?
What do you think? Is this gambling or are you just wrong?
Reposted by Viljami Sairanen
Onko edessä ensimmäinen konferenssi? Etkö oikein tiedä, mitä siellä tapahtuu tai mitä esimerkiksi työpaja tarkoittaa? Ei hätää. Blogissani selitän konferenssiin liittyvää sanastoa.
Konferenssisanastoa - Nuoren tutkijan elämää
Miten konferenssiesitelmä eroaa posteriesitelmästä? Tai mitä tarkoittaa konferenssin työpaja? Oma mielikuvani on, että työpajassa korjataan ja rakennetaan tai upotetaan kädet saveen. Konferenssin työp...
jenniraikkonen.fi
June 26, 2025 at 9:10 AM
Onko edessä ensimmäinen konferenssi? Etkö oikein tiedä, mitä siellä tapahtuu tai mitä esimerkiksi työpaja tarkoittaa? Ei hätää. Blogissani selitän konferenssiin liittyvää sanastoa.
1/5 Loot boxes of academic publishing?
A journal asked me to review a paper. The journal "recognizes reviewers’ contributions via APC waivers". If you review 2-4 papers per year, you will get 40% off the (insanely high) pay-to-win (publish) fee.
Basically, this is the same as playing at casino...
A journal asked me to review a paper. The journal "recognizes reviewers’ contributions via APC waivers". If you review 2-4 papers per year, you will get 40% off the (insanely high) pay-to-win (publish) fee.
Basically, this is the same as playing at casino...
May 31, 2025 at 6:01 PM
1/5 Loot boxes of academic publishing?
A journal asked me to review a paper. The journal "recognizes reviewers’ contributions via APC waivers". If you review 2-4 papers per year, you will get 40% off the (insanely high) pay-to-win (publish) fee.
Basically, this is the same as playing at casino...
A journal asked me to review a paper. The journal "recognizes reviewers’ contributions via APC waivers". If you review 2-4 papers per year, you will get 40% off the (insanely high) pay-to-win (publish) fee.
Basically, this is the same as playing at casino...
Reposted by Viljami Sairanen
Does anyone with a Siemens Trio have the gradient distortion correction .coef file they'd be willing to send us?
Thanks!
Thanks!
April 10, 2025 at 9:46 AM
Does anyone with a Siemens Trio have the gradient distortion correction .coef file they'd be willing to send us?
Thanks!
Thanks!
Hyvinvointialueilla tehdään myös tiedettä. Tai ainakin minä teen. Tällä kertaa osana kansainvälistä poppoota ja kohteena 16000 ihmisen magneettikuvat 🧠
omahame.fi/fi/w/tutkimu...
omahame.fi/fi/w/tutkimu...
Tutkimus: Potilaan liike sotkee magneettikuvia – uudet menetelmät mahdollistavat sotkun siivoamisen eikä potilasta tarvitse välttämättä kuvata uudestaan
omahame.fi
February 28, 2025 at 2:52 PM
Hyvinvointialueilla tehdään myös tiedettä. Tai ainakin minä teen. Tällä kertaa osana kansainvälistä poppoota ja kohteena 16000 ihmisen magneettikuvat 🧠
omahame.fi/fi/w/tutkimu...
omahame.fi/fi/w/tutkimu...
Reposted by Viljami Sairanen
It's hard to overstate what a big deal this paper is: onlinelibrary.wiley.com/doi/10.1002/.... Head motion in dMRI is NOT like head motion in BOLD.
Head Motion in Diffusion Magnetic Resonance Imaging: Quantification, Mitigation, and Structural Associations in Large, Cross‐Sectional Datasets Across the Lifespan
We characterized motion during diffusion MRI scans across 16,995 image sessions and find that (1) modern preprocessing pipelines effectively mitigate motion to the point where biases are not detectab....
onlinelibrary.wiley.com
February 13, 2025 at 5:42 PM
It's hard to overstate what a big deal this paper is: onlinelibrary.wiley.com/doi/10.1002/.... Head motion in dMRI is NOT like head motion in BOLD.
Fresh from the press!
Head Motion in Diffusion Magnetic Resonance Imaging: Quantification, Mitigation, and Structural Associations in Large, Cross-Sectional Datasets Across the Lifespan
Thanks to Kurt Schilling et al. for including me!
dx.doi.org/10.1002/hbm....
#dMRI
Head Motion in Diffusion Magnetic Resonance Imaging: Quantification, Mitigation, and Structural Associations in Large, Cross-Sectional Datasets Across the Lifespan
Thanks to Kurt Schilling et al. for including me!
dx.doi.org/10.1002/hbm....
#dMRI
Head Motion in Diffusion Magnetic Resonance Imaging: Quantification, Mitigation, and Structural Associations in Large, Cross‐Sectional Datasets Across the Lifespan
We characterized motion during diffusion MRI scans across 16,995 image sessions and find that (1) modern preprocessing pipelines effectively mitigate motion to the point where biases are not detectab...
dx.doi.org
February 12, 2025 at 9:42 AM
Fresh from the press!
Head Motion in Diffusion Magnetic Resonance Imaging: Quantification, Mitigation, and Structural Associations in Large, Cross-Sectional Datasets Across the Lifespan
Thanks to Kurt Schilling et al. for including me!
dx.doi.org/10.1002/hbm....
#dMRI
Head Motion in Diffusion Magnetic Resonance Imaging: Quantification, Mitigation, and Structural Associations in Large, Cross-Sectional Datasets Across the Lifespan
Thanks to Kurt Schilling et al. for including me!
dx.doi.org/10.1002/hbm....
#dMRI
Reposted by Viljami Sairanen
We are very excited to announce the open release of a new 170 participant dataset: Linked MEG, TMS, multimodal 3T MRI, 7T MRI, Connectom MRI, cognitive /questionnaire data. Immense effort from a fabulous
CUBRIC team. Paper by Carolyn McNabb et al: doi.org/10.1038/s415...
CUBRIC team. Paper by Carolyn McNabb et al: doi.org/10.1038/s415...
February 6, 2025 at 11:43 AM
We are very excited to announce the open release of a new 170 participant dataset: Linked MEG, TMS, multimodal 3T MRI, 7T MRI, Connectom MRI, cognitive /questionnaire data. Immense effort from a fabulous
CUBRIC team. Paper by Carolyn McNabb et al: doi.org/10.1038/s415...
CUBRIC team. Paper by Carolyn McNabb et al: doi.org/10.1038/s415...
Silly ChatGPT 🤭
January 26, 2025 at 7:15 AM
Silly ChatGPT 🤭
Reposted by Viljami Sairanen
Happy 30th birthday year to SPM!! 🎈🍰
To get the party started, we are delighted to announce SPM 25.01, a major new version of the open-source neuroimaging software.
Read the preprint to discover what's new arxiv.org/pdf/2501.12081 and download SPM for free from Github github.com/spm/spm/rele...
To get the party started, we are delighted to announce SPM 25.01, a major new version of the open-source neuroimaging software.
Read the preprint to discover what's new arxiv.org/pdf/2501.12081 and download SPM for free from Github github.com/spm/spm/rele...
arxiv.org
January 24, 2025 at 3:56 PM
Happy 30th birthday year to SPM!! 🎈🍰
To get the party started, we are delighted to announce SPM 25.01, a major new version of the open-source neuroimaging software.
Read the preprint to discover what's new arxiv.org/pdf/2501.12081 and download SPM for free from Github github.com/spm/spm/rele...
To get the party started, we are delighted to announce SPM 25.01, a major new version of the open-source neuroimaging software.
Read the preprint to discover what's new arxiv.org/pdf/2501.12081 and download SPM for free from Github github.com/spm/spm/rele...
Oletko aina tehnyt joulutortut väärin?
Laitetaanpa lusikka tähänkin luumusoppaan. Muotoillaan klassikkoleivonnainen uudelleen, jolloin myös luumumarmeladi on mahdollista levittää tasaisemmin. Näin joka haukkaus maistuu yhtä hyvälle!
Tässä joululahjani suomelle: joulutortini glassati
Laitetaanpa lusikka tähänkin luumusoppaan. Muotoillaan klassikkoleivonnainen uudelleen, jolloin myös luumumarmeladi on mahdollista levittää tasaisemmin. Näin joka haukkaus maistuu yhtä hyvälle!
Tässä joululahjani suomelle: joulutortini glassati
December 19, 2024 at 8:59 AM
Oletko aina tehnyt joulutortut väärin?
Laitetaanpa lusikka tähänkin luumusoppaan. Muotoillaan klassikkoleivonnainen uudelleen, jolloin myös luumumarmeladi on mahdollista levittää tasaisemmin. Näin joka haukkaus maistuu yhtä hyvälle!
Tässä joululahjani suomelle: joulutortini glassati
Laitetaanpa lusikka tähänkin luumusoppaan. Muotoillaan klassikkoleivonnainen uudelleen, jolloin myös luumumarmeladi on mahdollista levittää tasaisemmin. Näin joka haukkaus maistuu yhtä hyvälle!
Tässä joululahjani suomelle: joulutortini glassati
1.5 years ago I asked the Finnish Publication Forum to list @imagingneurosci.bsky.social as a new journal. Journals start always on level 0. I asked them to review the journal and they rised it to level 1. Now Finnish university libraries can start to pay APC fees of Imaging Neuroscience finally!
jfp.csc.fi
December 1, 2024 at 2:58 PM
1.5 years ago I asked the Finnish Publication Forum to list @imagingneurosci.bsky.social as a new journal. Journals start always on level 0. I asked them to review the journal and they rised it to level 1. Now Finnish university libraries can start to pay APC fees of Imaging Neuroscience finally!
Hey to all the new people here: please write _something_ to your bio (topic of your research, interests etc). Makes it easier to decide to follow back or not.
This is not only to avoid bots but also quite interesting to learn what people are doing!
This is not only to avoid bots but also quite interesting to learn what people are doing!
November 25, 2024 at 8:21 AM
Hey to all the new people here: please write _something_ to your bio (topic of your research, interests etc). Makes it easier to decide to follow back or not.
This is not only to avoid bots but also quite interesting to learn what people are doing!
This is not only to avoid bots but also quite interesting to learn what people are doing!
Now that this platform seems to be (blue)skyrocketing, it is probably good time to share my research topic: cracking the brain with #dMRI
#MRI #minätutkin
youtu.be/8lw-wkL3vXY?...
#MRI #minätutkin
youtu.be/8lw-wkL3vXY?...
Cracking the brain with dMRI
YouTube video by Viljami Sairanen
youtu.be
November 21, 2024 at 7:36 AM
Now that this platform seems to be (blue)skyrocketing, it is probably good time to share my research topic: cracking the brain with #dMRI
#MRI #minätutkin
youtu.be/8lw-wkL3vXY?...
#MRI #minätutkin
youtu.be/8lw-wkL3vXY?...
Reposted by Viljami Sairanen
Hello there!
#ismrm
#ismrm
a man in a brown robe with a hood on his head is standing in the desert .
Alt: Old Ben Kenobi removing his hood and saying, "Hello there."
media.tenor.com
November 18, 2024 at 11:54 PM
Hello there!
#ismrm
#ismrm
Reposted by Viljami Sairanen
Mukavaa nähdä eettisen ja epäkaupallisen somen kehittyvän. Seuraavana vuorossa avoimen lähdekoodin TikTok: loops.video
Avoimen lähdekoodin IG meiltä löytyykin jo: pixelfed.org
Ja tietysti Mastodon mementomori.social
Siistiä nähdä, että pian näitä kaikkia voi käyttää päikseen vaikka Threadsista.
Avoimen lähdekoodin IG meiltä löytyykin jo: pixelfed.org
Ja tietysti Mastodon mementomori.social
Siistiä nähdä, että pian näitä kaikkia voi käyttää päikseen vaikka Threadsista.
Loops by Pixelfed
Loops, explore and share short videos on the fediverse. Available soon!
loops.video
March 16, 2024 at 12:28 PM
Mukavaa nähdä eettisen ja epäkaupallisen somen kehittyvän. Seuraavana vuorossa avoimen lähdekoodin TikTok: loops.video
Avoimen lähdekoodin IG meiltä löytyykin jo: pixelfed.org
Ja tietysti Mastodon mementomori.social
Siistiä nähdä, että pian näitä kaikkia voi käyttää päikseen vaikka Threadsista.
Avoimen lähdekoodin IG meiltä löytyykin jo: pixelfed.org
Ja tietysti Mastodon mementomori.social
Siistiä nähdä, että pian näitä kaikkia voi käyttää päikseen vaikka Threadsista.
Reposted by Viljami Sairanen
Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks.
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
March 7, 2024 at 7:46 AM
Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks.
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
Reposted by Viljami Sairanen
Combining function and structure in a single macro-scale connectivity model of the human brain https://www.biorxiv.org/content/10.1101/2024.03.03.583186v1
Combining function and structure in a single macro-scale connectivity model of the human brain https://www.biorxiv.org/content/10.1101/2024.03.03.583186v1
Combining the macro-scale functional and structural connectivity matrices of the human brain could p
www.biorxiv.org
March 6, 2024 at 10:18 PM
Combining function and structure in a single macro-scale connectivity model of the human brain https://www.biorxiv.org/content/10.1101/2024.03.03.583186v1
Päivitetään tämä suomeksikin eli #Minätutkin aivorakenteita ja esitän tässä uuden tavan yhdistää toiminnalliset aivomittaukset aivorakennemalleihin. Toimii ainakin teoriassa tosi hyvin, mutta nähtäväksi jää tuleeko tästä apua Alzheimerin ym. tutkimisessa.
Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks.
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
March 8, 2024 at 8:51 AM
Päivitetään tämä suomeksikin eli #Minätutkin aivorakenteita ja esitän tässä uuden tavan yhdistää toiminnalliset aivomittaukset aivorakennemalleihin. Toimii ainakin teoriassa tosi hyvin, mutta nähtäväksi jää tuleeko tästä apua Alzheimerin ym. tutkimisessa.
Here is an example in Python how to combine functional and structural #brain connectivity (fc&sc) matrices:
github.com/vilsaira/FSC
Surprisingly simple to apply:
> from fsc import fsc
> fscm = fsc(V=fc, R=sc).get_I()
biorxiv.org/content/10.1...
#dipymri #Connectivity #fMRI #dMRI
github.com/vilsaira/FSC
Surprisingly simple to apply:
> from fsc import fsc
> fscm = fsc(V=fc, R=sc).get_I()
biorxiv.org/content/10.1...
#dipymri #Connectivity #fMRI #dMRI
March 8, 2024 at 8:37 AM
Here is an example in Python how to combine functional and structural #brain connectivity (fc&sc) matrices:
github.com/vilsaira/FSC
Surprisingly simple to apply:
> from fsc import fsc
> fscm = fsc(V=fc, R=sc).get_I()
biorxiv.org/content/10.1...
#dipymri #Connectivity #fMRI #dMRI
github.com/vilsaira/FSC
Surprisingly simple to apply:
> from fsc import fsc
> fscm = fsc(V=fc, R=sc).get_I()
biorxiv.org/content/10.1...
#dipymri #Connectivity #fMRI #dMRI
Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks.
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
March 7, 2024 at 7:46 AM
Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks.
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
This is a technical report so not applied to any clinical data yet.
www.biorxiv.org/content/10.1...
#neuroimaging #fMRI #dMRI #connectivity
Reposted by Viljami Sairanen
Hello World!
We have now received 500 submissions to Imaging Neuroscience, with 50 of these already published.
direct.mit.edu/imag/issue
Huge thanks for your support in moving our field away from for-profit publishers.
We have now received 500 submissions to Imaging Neuroscience, with 50 of these already published.
direct.mit.edu/imag/issue
Huge thanks for your support in moving our field away from for-profit publishers.
December 8, 2023 at 10:49 AM
Hello World!
We have now received 500 submissions to Imaging Neuroscience, with 50 of these already published.
direct.mit.edu/imag/issue
Huge thanks for your support in moving our field away from for-profit publishers.
We have now received 500 submissions to Imaging Neuroscience, with 50 of these already published.
direct.mit.edu/imag/issue
Huge thanks for your support in moving our field away from for-profit publishers.