Siawoosh Mohammadi
@siawooshmr.bsky.social
Physicist | MRI, biophysics, microstructure, in/ex vivo histology | Prof. @uniluebeck.bsky.social, PI @UKEhamburg, affiliated @lipmpib.bsky.social, @mpicbs.bsky.social | Views are my own
https://www.micromri.uni-luebeck.de/institut
https://www.micromri.uni-luebeck.de/institut
On my way to Marseille - waiting at Munich airport for my flight. Unfortunately, there was (time-wise) no affordable way from Hamburg to Marseille with the train. So, I had to take the flight option. But still, I am looking forward to seeing all my colleague and friends in person at the ESMRMB!
October 7, 2025 at 5:26 PM
On my way to Marseille - waiting at Munich airport for my flight. Unfortunately, there was (time-wise) no affordable way from Hamburg to Marseille with the train. So, I had to take the flight option. But still, I am looking forward to seeing all my colleague and friends in person at the ESMRMB!
And I will give a talk in the session "Quantitative MRI and its confoundings" (Friday, 10/10/25) with the title "Quantitative MRI and its confounding" - I didn't choose the title🤣
October 1, 2025 at 9:11 AM
And I will give a talk in the session "Quantitative MRI and its confoundings" (Friday, 10/10/25) with the title "Quantitative MRI and its confounding" - I didn't choose the title🤣
Frank (Francisco J. Fritz) will present his amazing data on our ERC study. The title of his presentation "Quantitative MRI study of excised brain tissue in drug-resistant epilepsy patient: from in-vivo to ex-vivo"
And here is a little teaser
And here is a little teaser
October 1, 2025 at 8:57 AM
Frank (Francisco J. Fritz) will present his amazing data on our ERC study. The title of his presentation "Quantitative MRI study of excised brain tissue in drug-resistant epilepsy patient: from in-vivo to ex-vivo"
And here is a little teaser
And here is a little teaser
Three of our group from Lübeck will be in Marseille. Laurin Mordhorst will present his final PhD work with the title "Reaching the Tail: Validating MRI Axon
Radius Mapping with MRI-Scale Histology"
Radius Mapping with MRI-Scale Histology"
October 1, 2025 at 8:51 AM
Three of our group from Lübeck will be in Marseille. Laurin Mordhorst will present his final PhD work with the title "Reaching the Tail: Validating MRI Axon
Radius Mapping with MRI-Scale Histology"
Radius Mapping with MRI-Scale Histology"
Judith Schirmer used sodium MRI at 7T to characterize cysts in kidneys using in vivo and ex vivo measurements.
September 29, 2025 at 8:37 PM
Judith Schirmer used sodium MRI at 7T to characterize cysts in kidneys using in vivo and ex vivo measurements.
Jan-Malte Oeschger from our group in Lübeck presented our travel-head study on optimising an 1-hour clinical quantitative MRI protocol.
September 29, 2025 at 8:35 PM
Jan-Malte Oeschger from our group in Lübeck presented our travel-head study on optimising an 1-hour clinical quantitative MRI protocol.
Federicia Calafiore from Lund presented her amazing results about measuring CSF flow in Normal Pressure Hydrocephalus.
September 29, 2025 at 8:32 PM
Federicia Calafiore from Lund presented her amazing results about measuring CSF flow in Normal Pressure Hydrocephalus.
(5/5) Fransisco J. Fritz and yours truly worked on the first pilot data from two patients with drug-resistant temporal lobe epilepsy. Using 23 different quantitative MRI contrasts we identified a fingerprint of the disease across two patients with different MR-clinical findings.
February 3, 2025 at 12:56 PM
(5/5) Fransisco J. Fritz and yours truly worked on the first pilot data from two patients with drug-resistant temporal lobe epilepsy. Using 23 different quantitative MRI contrasts we identified a fingerprint of the disease across two patients with different MR-clinical findings.
4/5 Jan-Malte Oeschger (@jan-malte.bsky.social) worked on q-space trajectory imaging with tensor-valued diffusion encoding and their stability as part of a clinical protocol. He investigated the influence of different protocols on their reproducibility, focussing on gray matter - see Abstract #8548
February 3, 2025 at 12:53 PM
4/5 Jan-Malte Oeschger (@jan-malte.bsky.social) worked on q-space trajectory imaging with tensor-valued diffusion encoding and their stability as part of a clinical protocol. He investigated the influence of different protocols on their reproducibility, focussing on gray matter - see Abstract #8548
(2/5) In this traveling-head study, we compared different MR sequences across sites. Nina Lüthi worked on evaluating 3D-EPI and FLASH-based multi-parameter mapping and asked the question: Which sequences are best for usage in patients? To learn more about her project, see Abstract #5155
February 3, 2025 at 12:49 PM
(2/5) In this traveling-head study, we compared different MR sequences across sites. Nina Lüthi worked on evaluating 3D-EPI and FLASH-based multi-parameter mapping and asked the question: Which sequences are best for usage in patients? To learn more about her project, see Abstract #5155
(2/5) Laurin Mordhort evaluated fast R2-mapping methods for clinical application. He compared a magnitude-phase-relaxation method using 3D EPI against controlled saturation magnetization transfer with joint system relaxation (CSMT-JSR) using variations of FLASH and SSFP sequences, see Abstract #9375
February 3, 2025 at 12:46 PM
(2/5) Laurin Mordhort evaluated fast R2-mapping methods for clinical application. He compared a magnitude-phase-relaxation method using 3D EPI against controlled saturation magnetization transfer with joint system relaxation (CSMT-JSR) using variations of FLASH and SSFP sequences, see Abstract #9375
(1/5) All abstracts to this year‘s @ismrm.bsky.social were accepted. Congrats to the team!
www.ismrm.org/25/accepted_...
Our abstracts mainly evaluate the traveling-head study MR data we recorded as part of our recently launched @ercresearch.bsky.social project (cordis.europa.eu/project/id/1...).
www.ismrm.org/25/accepted_...
Our abstracts mainly evaluate the traveling-head study MR data we recorded as part of our recently launched @ercresearch.bsky.social project (cordis.europa.eu/project/id/1...).
February 3, 2025 at 12:42 PM
(1/5) All abstracts to this year‘s @ismrm.bsky.social were accepted. Congrats to the team!
www.ismrm.org/25/accepted_...
Our abstracts mainly evaluate the traveling-head study MR data we recorded as part of our recently launched @ercresearch.bsky.social project (cordis.europa.eu/project/id/1...).
www.ismrm.org/25/accepted_...
Our abstracts mainly evaluate the traveling-head study MR data we recorded as part of our recently launched @ercresearch.bsky.social project (cordis.europa.eu/project/id/1...).
Today, on my way to my lecture on MR Physics at the University of Hamburg, I realized that there is a protest against the AFD and the CDU (that is indirectly accepting support from the AFD: www.ndr.de/nachrichten/...).
I joined the protest after the lecture:-) Well done Hamburg!
I joined the protest after the lecture:-) Well done Hamburg!
January 31, 2025 at 3:42 PM
Today, on my way to my lecture on MR Physics at the University of Hamburg, I realized that there is a protest against the AFD and the CDU (that is indirectly accepting support from the AFD: www.ndr.de/nachrichten/...).
I joined the protest after the lecture:-) Well done Hamburg!
I joined the protest after the lecture:-) Well done Hamburg!
Sehr schön! Wir waren etwa 10 mal so viele wie erwartet:
www.ndr.de/nachrichten/...
www.ndr.de/nachrichten/...
January 16, 2025 at 7:14 PM
Sehr schön! Wir waren etwa 10 mal so viele wie erwartet:
www.ndr.de/nachrichten/...
www.ndr.de/nachrichten/...
You did a great job @imagingneurosci.bsky.social ! Thank you.
And here was our little contribution to the 2024'th collection:
direct.mit.edu/imag/article...
And here was our little contribution to the 2024'th collection:
direct.mit.edu/imag/article...
December 29, 2024 at 1:35 PM
You did a great job @imagingneurosci.bsky.social ! Thank you.
And here was our little contribution to the 2024'th collection:
direct.mit.edu/imag/article...
And here was our little contribution to the 2024'th collection:
direct.mit.edu/imag/article...
5/
ACID (www.diffusiontools.com) seamlessly integrates into SPM, benefiting from a wide range of segmentation, spatial processing, & statistical analysis & other SPM extensions (e.g., hMRI toolbox: www.hMRI.info). ACID covers the entire chain from DICOM conversion to group-level statis., all in one
ACID (www.diffusiontools.com) seamlessly integrates into SPM, benefiting from a wide range of segmentation, spatial processing, & statistical analysis & other SPM extensions (e.g., hMRI toolbox: www.hMRI.info). ACID covers the entire chain from DICOM conversion to group-level statis., all in one
December 3, 2024 at 6:43 PM
5/
ACID (www.diffusiontools.com) seamlessly integrates into SPM, benefiting from a wide range of segmentation, spatial processing, & statistical analysis & other SPM extensions (e.g., hMRI toolbox: www.hMRI.info). ACID covers the entire chain from DICOM conversion to group-level statis., all in one
ACID (www.diffusiontools.com) seamlessly integrates into SPM, benefiting from a wide range of segmentation, spatial processing, & statistical analysis & other SPM extensions (e.g., hMRI toolbox: www.hMRI.info). ACID covers the entire chain from DICOM conversion to group-level statis., all in one
4/
ACID offers biophysical white matter tissue microstructure models, estimating parameters such as axonal water fraction and axon orientation dispersion. Currently implemented biophysical models include WMTI-Watson (based on DKI) and NODDI-DTI (based on DTI).
Examples parameters below.
ACID offers biophysical white matter tissue microstructure models, estimating parameters such as axonal water fraction and axon orientation dispersion. Currently implemented biophysical models include WMTI-Watson (based on DKI) and NODDI-DTI (based on DTI).
Examples parameters below.
December 3, 2024 at 6:41 PM
4/
ACID offers biophysical white matter tissue microstructure models, estimating parameters such as axonal water fraction and axon orientation dispersion. Currently implemented biophysical models include WMTI-Watson (based on DKI) and NODDI-DTI (based on DTI).
Examples parameters below.
ACID offers biophysical white matter tissue microstructure models, estimating parameters such as axonal water fraction and axon orientation dispersion. Currently implemented biophysical models include WMTI-Watson (based on DKI) and NODDI-DTI (based on DTI).
Examples parameters below.
3/
ACID offers linear and nonlinear signal fitting algorithms for diffusion and kurtosis parameter estimation. It incorporates the axisymmetric DKI model, a recent modification of DKI reducing the parameter space from 21 to 8 by assuming axisymmetry
Examples parameter maps below.
ACID offers linear and nonlinear signal fitting algorithms for diffusion and kurtosis parameter estimation. It incorporates the axisymmetric DKI model, a recent modification of DKI reducing the parameter space from 21 to 8 by assuming axisymmetry
Examples parameter maps below.
December 3, 2024 at 6:40 PM
3/
ACID offers linear and nonlinear signal fitting algorithms for diffusion and kurtosis parameter estimation. It incorporates the axisymmetric DKI model, a recent modification of DKI reducing the parameter space from 21 to 8 by assuming axisymmetry
Examples parameter maps below.
ACID offers linear and nonlinear signal fitting algorithms for diffusion and kurtosis parameter estimation. It incorporates the axisymmetric DKI model, a recent modification of DKI reducing the parameter space from 21 to 8 by assuming axisymmetry
Examples parameter maps below.
2/ ACID combines artifact correction with signal modelling. Artefact corrections includes: motion; eddy current; denoising; Rician bias; susceptibility-distortions. ACID is also suitable for spinal cord and ex vivo dMRI.
Below recommended pipelines for in vivo brain, spinal cord, and ex vivo
Below recommended pipelines for in vivo brain, spinal cord, and ex vivo
December 3, 2024 at 6:39 PM
2/ ACID combines artifact correction with signal modelling. Artefact corrections includes: motion; eddy current; denoising; Rician bias; susceptibility-distortions. ACID is also suitable for spinal cord and ex vivo dMRI.
Below recommended pipelines for in vivo brain, spinal cord, and ex vivo
Below recommended pipelines for in vivo brain, spinal cord, and ex vivo
1/ Drawing on 13+ yrs of research & development, finally the ACID toolbox paper out:
direct.mit.edu/imag/article...
#Neuroscience #MRI #DiffusionImaging #OpenSource #Neuroimaging #DataScience #SPM
direct.mit.edu/imag/article...
#Neuroscience #MRI #DiffusionImaging #OpenSource #Neuroimaging #DataScience #SPM
December 3, 2024 at 6:38 PM
1/ Drawing on 13+ yrs of research & development, finally the ACID toolbox paper out:
direct.mit.edu/imag/article...
#Neuroscience #MRI #DiffusionImaging #OpenSource #Neuroimaging #DataScience #SPM
direct.mit.edu/imag/article...
#Neuroscience #MRI #DiffusionImaging #OpenSource #Neuroimaging #DataScience #SPM
Prof. Dr. Henrik Kessler talks about the neural basis of visuospatial interventions in trauma related disorders, using Tetris as a tool for therapy
November 22, 2024 at 9:30 AM
Prof. Dr. Henrik Kessler talks about the neural basis of visuospatial interventions in trauma related disorders, using Tetris as a tool for therapy
Dr. Marcus Belke presented on current imaging research in neurology. Their research on epilepsy was particularly interesting
November 22, 2024 at 9:12 AM
Dr. Marcus Belke presented on current imaging research in neurology. Their research on epilepsy was particularly interesting
Prof. Dr. Tilo Kircher presented the CRC "SFB/TRR 393: Trajektorien affektiver Störungen" that started now.
November 22, 2024 at 8:50 AM
Prof. Dr. Tilo Kircher presented the CRC "SFB/TRR 393: Trajektorien affektiver Störungen" that started now.
First talk today:
Dr. Frederike Stein presented work that has been published during the FOR2107: Neurobiologische Mechanismen affektiver und psychotischer Störungen
Dr. Frederike Stein presented work that has been published during the FOR2107: Neurobiologische Mechanismen affektiver und psychotischer Störungen
November 22, 2024 at 8:25 AM
First talk today:
Dr. Frederike Stein presented work that has been published during the FOR2107: Neurobiologische Mechanismen affektiver und psychotischer Störungen
Dr. Frederike Stein presented work that has been published during the FOR2107: Neurobiologische Mechanismen affektiver und psychotischer Störungen
Yesterday, two external speakers presented their work: Ben de Haas and yours truly.
November 22, 2024 at 8:22 AM
Yesterday, two external speakers presented their work: Ben de Haas and yours truly.