Johan Virhammar
Docent vid Institutionen för medicinska vetenskaper; Neurologi
- Mobiltelefon:
- 073-967 74 77
- E-post:
- johan.virhammar@uu.se
- Besöksadress:
- Akademiska sjukhuset
- Postadress:
- Akademiska sjukhuset, ing 85 plan 2
751 85 UPPSALA
Kort presentation
Huvudfokus för min aktuella forskning är inom radiologi, biomarkörer i cerebrospinalvätska och patofysiologi främst inom sjukdomsgruppen hydrocefalus. Har även pågående forskning inom Parkinsons sjukdom, multipel skleros, neurointensivvård samt neurologiska komplikationer till COVID-19.
Publikationer
Urval av publikationer
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Brain tissue Aβ42 levels are linked to shunt response in idiopathic normal pressure hydrocephalus
Ingår i Journal of Neurosurgery, s. 121-129, 2019
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Ingår i Journal of Neurosurgery, s. 130-135, 2019
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Ingår i European Journal of Neurology, s. 569-576, 2018
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Ingår i American Journal of Neuroradiology, s. 2081-2088, 2017
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Ingår i Therapeutic advances in neurological disorders, s. 171-187, 2017
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Ingår i American Journal of Neuroradiology, s. 797-801, 2016
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Ingår i American Journal of Neuroradiology, s. 2311-2318, 2014
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Ingår i Journal of Cerebral Blood Flow and Metabolism, s. 1771-1778, 2014
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Ingår i Journal of Neurosurgery, s. 178-184, 2014
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Ingår i European Journal of Neurology, s. 271-276, 2012
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Senaste publikationer
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Ingår i Fluids and Barriers of the CNS, 2026
- DOI för Targeted CSF metabolomics and conformal prediction improve diagnostic accuracy of normal pressure hydrocephalus
- Ladda ner fulltext (pdf) av Targeted CSF metabolomics and conformal prediction improve diagnostic accuracy of normal pressure hydrocephalus
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Ingår i Journal of Neuroimaging, 2026
- DOI för Rapid Estimation of Myelin for Diagnostic Imaging and Quantification of Therapy Responses in Multiple Sclerosis
- Ladda ner fulltext (pdf) av Rapid Estimation of Myelin for Diagnostic Imaging and Quantification of Therapy Responses in Multiple Sclerosis
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Inflammatory protein profiles and shunt response in iNPH
Ingår i Fluids and Barriers of the CNS, 2026
- DOI för Inflammatory protein profiles and shunt response in iNPH
- Ladda ner fulltext (pdf) av Inflammatory protein profiles and shunt response in iNPH
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Ingår i Radiography, 2026
- DOI för Radiation doses in ventriculoperitoneal shunt catheter imaging - Comparing traditional plain radiography with computed tomography and photon counting computed tomography.
- Ladda ner fulltext (pdf) av Radiation doses in ventriculoperitoneal shunt catheter imaging - Comparing traditional plain radiography with computed tomography and photon counting computed tomography.
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Ingår i Fluids and Barriers of the CNS, 2025
- DOI för Blinded gait assessment in idiopathic normal pressure hydrocephalus: reliability and correlation with clinical and patient-reported outcomes
- Ladda ner fulltext (pdf) av Blinded gait assessment in idiopathic normal pressure hydrocephalus: reliability and correlation with clinical and patient-reported outcomes
Alla publikationer
Artiklar i tidskrift
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Ingår i Fluids and Barriers of the CNS, 2026
- DOI för Targeted CSF metabolomics and conformal prediction improve diagnostic accuracy of normal pressure hydrocephalus
- Ladda ner fulltext (pdf) av Targeted CSF metabolomics and conformal prediction improve diagnostic accuracy of normal pressure hydrocephalus
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Ingår i Journal of Neuroimaging, 2026
- DOI för Rapid Estimation of Myelin for Diagnostic Imaging and Quantification of Therapy Responses in Multiple Sclerosis
- Ladda ner fulltext (pdf) av Rapid Estimation of Myelin for Diagnostic Imaging and Quantification of Therapy Responses in Multiple Sclerosis
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Inflammatory protein profiles and shunt response in iNPH
Ingår i Fluids and Barriers of the CNS, 2026
- DOI för Inflammatory protein profiles and shunt response in iNPH
- Ladda ner fulltext (pdf) av Inflammatory protein profiles and shunt response in iNPH
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Ingår i Radiography, 2026
- DOI för Radiation doses in ventriculoperitoneal shunt catheter imaging - Comparing traditional plain radiography with computed tomography and photon counting computed tomography.
- Ladda ner fulltext (pdf) av Radiation doses in ventriculoperitoneal shunt catheter imaging - Comparing traditional plain radiography with computed tomography and photon counting computed tomography.
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Ingår i Fluids and Barriers of the CNS, 2025
- DOI för Blinded gait assessment in idiopathic normal pressure hydrocephalus: reliability and correlation with clinical and patient-reported outcomes
- Ladda ner fulltext (pdf) av Blinded gait assessment in idiopathic normal pressure hydrocephalus: reliability and correlation with clinical and patient-reported outcomes
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Ingår i World Neurosurgery, 2025
- DOI för Chronic, Shunt-Dependent Hydrocephalus in Aneurysmal Subarachnoid Hemorrhage: Incidence, Risk Factors, Clinical Phenotypes, and Outcome
- Ladda ner fulltext (pdf) av Chronic, Shunt-Dependent Hydrocephalus in Aneurysmal Subarachnoid Hemorrhage: Incidence, Risk Factors, Clinical Phenotypes, and Outcome
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Ingår i Acta Neurochirurgica, 2025
- DOI för When and how are complications suspected after shunt surgery in patients with normal pressure hydrocephalus?
- Ladda ner fulltext (pdf) av When and how are complications suspected after shunt surgery in patients with normal pressure hydrocephalus?
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Ingår i Brain, behavior, and immunity, s. 163-176, 2025
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Ingår i Neurotrauma Reports, s. 857-873, 2024
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Ingår i Journal of Neuroimaging, s. 612-618, 2024
- DOI för Quantitative brain stem assessment in discriminating neurodegenerative disorders from normal pressure hydrocephalus
- Ladda ner fulltext (pdf) av Quantitative brain stem assessment in discriminating neurodegenerative disorders from normal pressure hydrocephalus
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Ingår i International Journal of Laboratory Hematology, s. 42-49, 2024
- DOI för Extracellular vesicles in plasma and cerebrospinal fluid in patients with COVID-19 and neurological symptoms
- Ladda ner fulltext (pdf) av Extracellular vesicles in plasma and cerebrospinal fluid in patients with COVID-19 and neurological symptoms
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Ingår i Journal of Neurology, s. 3315-3328, 2023
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Ingår i Fluids and Barriers of the CNS, 2023
- DOI för Levels of inflammatory cytokines MCP-1, CCL4, and PD-L1 in CSF differentiate idiopathic normal pressure hydrocephalus from neurodegenerative diseases
- Ladda ner fulltext (pdf) av Levels of inflammatory cytokines MCP-1, CCL4, and PD-L1 in CSF differentiate idiopathic normal pressure hydrocephalus from neurodegenerative diseases
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Ingår i European Journal of Neurology, s. 3142-3148, 2023
- DOI för Myoclonus in patients with COVID-19: Findings of autoantibodies against brain structures in cerebrospinal fluid
- Ladda ner fulltext (pdf) av Myoclonus in patients with COVID-19: Findings of autoantibodies against brain structures in cerebrospinal fluid
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Protein Expression Profile of ACE2 in the Normal and COVID-19-Affected Human Brain.
Ingår i Journal of Proteome Research, s. 2137-2145, 2022
- DOI för Protein Expression Profile of ACE2 in the Normal and COVID-19-Affected Human Brain.
- Ladda ner fulltext (pdf) av Protein Expression Profile of ACE2 in the Normal and COVID-19-Affected Human Brain.
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Ingår i Journal of Infectious Diseases, s. 965-970, 2022
- DOI för Antibody Responses to Severe Acute Respiratory Syndrome Coronavirus 2 in the Serum and Cerebrospinal Fluid of Patients With Coronavirus Disease 2019 and Neurological Symptoms
- Ladda ner fulltext (pdf) av Antibody Responses to Severe Acute Respiratory Syndrome Coronavirus 2 in the Serum and Cerebrospinal Fluid of Patients With Coronavirus Disease 2019 and Neurological Symptoms
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Ingår i Fluids and Barriers of the CNS, 2022
- DOI för White matter changes should not exclude patients with idiopathic normal pressure hydrocephalus from shunt surgery
- Ladda ner fulltext (pdf) av White matter changes should not exclude patients with idiopathic normal pressure hydrocephalus from shunt surgery
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Ingår i Fluids and Barriers of the CNS, 2022
- DOI för The timed up and go test in idiopathic normal pressure hydrocephalus: a Nationwide Study of 1300 patients
- Ladda ner fulltext (pdf) av The timed up and go test in idiopathic normal pressure hydrocephalus: a Nationwide Study of 1300 patients
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Ingår i Fluids and Barriers of the CNS, 2022
- DOI för Higher levels of neurofilament light chain and total tau in CSF are associated with negative outcome after shunt surgery in patients with normal pressure hydrocephalus
- Ladda ner fulltext (pdf) av Higher levels of neurofilament light chain and total tau in CSF are associated with negative outcome after shunt surgery in patients with normal pressure hydrocephalus
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Ingår i Journal of Neuroimaging, s. 90-96, 2022
- DOI för Midbrain area and the hummingbird sign from brain MRI in progressive supranuclear palsy and idiopathic normal pressure hydrocephalus
- Ladda ner fulltext (pdf) av Midbrain area and the hummingbird sign from brain MRI in progressive supranuclear palsy and idiopathic normal pressure hydrocephalus
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Ingår i Journal of neuroradiology, s. 421-427, 2022
- DOI för The extent of neuroradiological findings in COVID-19 shows correlation with blood biomarkers, Glasgow coma scale score and days in intensive care
- Ladda ner fulltext (pdf) av The extent of neuroradiological findings in COVID-19 shows correlation with blood biomarkers, Glasgow coma scale score and days in intensive care
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Ingår i American Journal of Psychiatry, s. 485-489, 2021
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Ingår i Fluids and Barriers of the CNS, 2021
- DOI för Imaging features associated with idiopathic normal pressure hydrocephalus have high specificity even when comparing with vascular dementia and atypical parkinsonism
- Ladda ner fulltext (pdf) av Imaging features associated with idiopathic normal pressure hydrocephalus have high specificity even when comparing with vascular dementia and atypical parkinsonism
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Ingår i Brain, behavior, and immunity, s. 473-474, 2021
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Ingår i European Journal of Neurology, s. 3324-3331, 2021
- DOI för Biomarkers for central nervous system injury in cerebrospinal fluid are elevated in COVID-19 and associated with neurological symptoms and disease severity
- Ladda ner fulltext (pdf) av Biomarkers for central nervous system injury in cerebrospinal fluid are elevated in COVID-19 and associated with neurological symptoms and disease severity
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Ingår i Journal of Alzheimer's Disease, s. 629-640, 2021
- DOI för Different Inflammatory Signatures in Alzheimer's Disease and Frontotemporal Dementia Cerebrospinal Fluid
- Ladda ner fulltext (pdf) av Different Inflammatory Signatures in Alzheimer's Disease and Frontotemporal Dementia Cerebrospinal Fluid
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Ingår i Clinical Neurophysiology, s. 1733-1740, 2021
- DOI för Critical illness polyneuropathy, myopathy and neuronal biomarkers in COVID-19 patients: A prospective study
- Ladda ner fulltext (pdf) av Critical illness polyneuropathy, myopathy and neuronal biomarkers in COVID-19 patients: A prospective study
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Cerebral Perfusion Does Not Increase after Shunt Surgery for Normal Pressure Hydrocephalus
Ingår i Journal of Neuroimaging, s. 303-307, 2020
- DOI för Cerebral Perfusion Does Not Increase after Shunt Surgery for Normal Pressure Hydrocephalus
- Ladda ner fulltext (pdf) av Cerebral Perfusion Does Not Increase after Shunt Surgery for Normal Pressure Hydrocephalus
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Diagnostic accuracy of the iNPH Radscale in idiopathic normal pressure hydrocephalus
Ingår i PLOS ONE, 2020
- DOI för Diagnostic accuracy of the iNPH Radscale in idiopathic normal pressure hydrocephalus
- Ladda ner fulltext (pdf) av Diagnostic accuracy of the iNPH Radscale in idiopathic normal pressure hydrocephalus
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Negative predictors of shunt surgery outcome in normal pressure hydrocephalus
Ingår i Acta Neurologica Scandinavica, s. 219-225, 2020
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Acute necrotizing encephalopathy with SARS-CoV-2 RNA confirmed in cerebrospinal fluid
Ingår i Neurology, s. 445-449, 2020
- DOI för Acute necrotizing encephalopathy with SARS-CoV-2 RNA confirmed in cerebrospinal fluid
- Ladda ner fulltext (pdf) av Acute necrotizing encephalopathy with SARS-CoV-2 RNA confirmed in cerebrospinal fluid
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Brain tissue Aβ42 levels are linked to shunt response in idiopathic normal pressure hydrocephalus
Ingår i Journal of Neurosurgery, s. 121-129, 2019
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Ingår i Neuroradiology, s. 1397-1406, 2019
- DOI för Standardized image evaluation in patients with idiopathic normal pressure hydrocephalus: consistency and reproducibility
- Ladda ner fulltext (pdf) av Standardized image evaluation in patients with idiopathic normal pressure hydrocephalus: consistency and reproducibility
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Ingår i Journal of Neurosurgery, s. 130-135, 2019
-
Ingår i American Journal of Neuroradiology, s. 453-459, 2019
-
Ingår i European Journal of Neurology, s. 569-576, 2018
-
Ingår i American Journal of Neuroradiology, s. 2081-2088, 2017
-
Ingår i American Journal of Neuroradiology, s. 797-801, 2016
-
Ingår i American Journal of Neuroradiology, s. 2311-2318, 2014
-
Ingår i Journal of Cerebral Blood Flow and Metabolism, s. 1771-1778, 2014
-
Ingår i Journal of Neurosurgery, s. 178-184, 2014
-
Ingår i European Journal of Neurology, s. 271-276, 2012
Artiklar, forskningsöversikt
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Ingår i Therapeutic advances in neurological disorders, s. 171-187, 2017
Doktorsavhandlingar, sammanläggning
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2014
Manuskript (preprint)
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2024
- DOI för Assessing CT-based Volumetric Analysis via Transfer Learning with MRI and Manual Labels for Idiopathic Normal Pressure Hydrocephalus.
- Ladda ner fulltext (pdf) av Assessing CT-based Volumetric Analysis via Transfer Learning with MRI and Manual Labels for Idiopathic Normal Pressure Hydrocephalus.
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