Neuroradiology Journal最新文献

{"title":"Women in neurosurgery and interventional neuroradiology in Brazil and other countries: can lightning strike the same place twice?","authors":"Luana Antunes Maranha Gatto, Jennyfer Paula Galdino Chaves","doi":"10.1177/19714009211026895","DOIUrl":"10.1177/19714009211026895","url":null,"abstract":"<p><strong>Background: </strong>Neurosurgery is historically a specialty with a wide male predominance. Interventional neuroradiology, considered in many countries to be a subspecialty of neurosurgery (but also radiology and neurology), has never been the setting for this discussion, but the even greater gender inequality of professionals working in this area is well known.</p><p><strong>Aims: </strong>The initial objective of this research was to describe the personal and professional profile of the few women in Brazil who practise neurosurgery and interventional neuroradiology, and the difficulties they encountered throughout their careers just because they are women. However, the shocking stories they experienced led the team to expand searches around the world, obtaining data from some other countries, mainly in South America. Machismo, harassment, misogyny, discrimination and wage inequality go beyond borders.</p><p><strong>Discussion: </strong>Current times do not allow these situations anymore, but which, according to the narrative descriptions of 28 interventional neuroradiology women interviewed, still occur very frequently. A more inclusive vision must be sought by interventional neuroradiology societies, and it is up to the leaders to take care of those who need more attention (which does not mean they are more fragile).</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"390-396"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138329/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39203572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Autoimmune diseases of the spine and spinal cord.","authors":"Garrick Biddle, Ryan T Beck, Osama Raslan, Julius Ebinu, Zach Jenner, John Hamer, Lotfi Hacein-Bey, Michelle Apperson, Vladimir Ivanovic","doi":"10.1177/19714009231187340","DOIUrl":"10.1177/19714009231187340","url":null,"abstract":"<p><p>Magnetic resonance imaging (MRI) and clinicopathological tools have led to the identification of a wide spectrum of autoimmune entities that involve the spine. A clearer understanding of the unique imaging features of these disorders, along with their clinical presentations, will prove invaluable to clinicians and potentially limit the need for more invasive procedures such as tissue biopsies. Here, we review various autoimmune diseases affecting the spine and highlight salient imaging features that distinguish them radiologically from other disease entities.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"285-303"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138326/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9795157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence of Scarpa's ganglion enhancement on high-resolution MRI imaging.","authors":"Clayton Siminski, John C Benson, Matthew L Carlson, John I Lane","doi":"10.1177/19714009231224415","DOIUrl":"10.1177/19714009231224415","url":null,"abstract":"<p><strong>Background and purpose: </strong>The vestibular ganglion, or Scarpa's ganglion, is a cluster of afferent vestibular neurons within the internal auditory canal (IAC). There is minimal literature describing enhancement of this region on magnetic resonance imaging (MRI) and its correlation to clinical symptoms. Here, we sought to find the prevalence of enhancement at Scarpa's ganglion, and determine whether such enhancement correlates with demographics or clinical symptoms.</p><p><strong>Materials and methods: </strong>A retrospective review was performed of consecutive patients with an MRI of the IAC between 3/1/2021 and 5/20/2021. Two neuroradiologists independently reviewed for T1 and FLAIR enhancement of the Scarpa's ganglion on post-contrast fat-saturated T1 and post-contrast FLAIR images. Discrepancies were agreed upon by consensus. Clinical variables (hearing loss, vestibular symptoms, tinnitus, and MRI indication) were gathered from a retrospective chart review.</p><p><strong>Results: </strong>Eighty-nine patients were included (51 female); the mean age was 58 (range 19-85). The most common MRI indication was hearing loss (<i>n</i> = 53). FLAIR enhancement was present on the right in 7 patients, on the left in 7 patients, and bilaterally in 6 patients. No enhancement was seen on post-contrast T1 images. There was no statistically significant correlation between consensus FLAIR on at least one side and age (<i>p</i> = .74), gender (<i>p</i> = .29), hearing loss (<i>p</i> = .32), hearing loss side (<i>p</i> = .39), type of hearing loss (<i>p</i> = .87), vestibular symptoms (<i>p</i> = .71), or tinnitus (<i>p</i> = .81).</p><p><strong>Conclusions: </strong>Enhancement is present in the minority of patients on post-contrast FLAIR images. If seen, it should be considered an uncommon but not unexpected finding with no clinical significance.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"332-335"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138325/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139472675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Choroid plexus calcifications are not associated with putative markers of glymphatic dysfunction: A population study in middle-aged and older adults.","authors":"Pablo R Castillo, Vishal Patel, Robertino M Mera, Denisse A Rumbea, Oscar H Del Brutto","doi":"10.1177/19714009241240315","DOIUrl":"10.1177/19714009241240315","url":null,"abstract":"<p><strong>Background and purpose: </strong>Recent studies have suggested an association between dysfunction of the choroid plexus and the glymphatic system. However, information is inconclusive. Following a population-based study design, we aimed to assess the association between choroid plexus calcifications (CPCs)-as a surrogate of choroid plexus dysfunction-and severity and progression of putative markers of glymphatic dysfunction, including white matter hyperintensities (WMH) of presumed vascular origin and abnormally enlarged basal ganglia perivascular spaces (BG-PVS).</p><p><strong>Methods: </strong>This study recruited community-dwellers aged ≥40 years living in neighboring Ecuadorian villages. Participants who had baseline head CTs and brain MRIs were included in cross-sectional analyses and those who additional had follow-up MRIs (after a mean of 6.4 ± 1.5 years) were included in longitudinal analyses. Logistic and Poisson regression models, adjusted for demographics and cardiovascular risk factors, were fitted to assess associations between CPCs and WMH and enlarged BG-PVS severity and progression.</p><p><strong>Results: </strong>A total of 590 individuals were included in the cross-sectional component of the study, and 215 in the longitudinal component. At baseline, 25% of participants had moderate-to-severe WMH and 27% had abnormally enlarged BG-PVS. At follow-up, 36% and 20% of participants had WMH and enlarged BG-PVS progression, respectively. Logistic regression models showed no significant differences between CPCs volumes stratified in quartiles and severity of WMH and enlarged BG-PVS. Poisson regression models showed no association between the exposure and WMH and enlarged BG-PVS progression. Baseline age remained significant in these models.</p><p><strong>Conclusions: </strong>Choroid plexus calcifications are not associated with putative markers of glymphatic system dysfunction.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"342-350"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138340/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140137252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute occlusion of the fetal posterior cerebral artery: diagnosis and management paradigms.","authors":"Mohamad Abdalkader, Anurag Sahoo, Julie G Shulman, Elie Sader, Courtney Takahashi, Artem Kaliaev, Gioacchino G Curiale, Anna D Hohler, Judith Hinchey, Thanh N Nguyen","doi":"10.1177/19714009211019383","DOIUrl":"10.1177/19714009211019383","url":null,"abstract":"<p><strong>Background and purpose: </strong>The diagnosis and management of acute fetal posterior cerebral artery occlusion are challenging. While endovascular treatment is established for anterior circulation large vessel occlusion stroke, little is known about the course of acute fetal posterior cerebral artery occlusions. We report the clinical course, radiological findings and management considerations of acute fetal posterior cerebral artery occlusion stroke.</p><p><strong>Methods: </strong>We performed a retrospective review of consecutive patients presenting with acute large vessel occlusion who underwent cerebral angiogram and/or mechanical thrombectomy between January 2015 and January 2021. Patients diagnosed with fetal posterior cerebral artery occlusion were included. Demographic data, clinical presentation, imaging findings and management strategies were reviewed.</p><p><strong>Results: </strong>Between January 2015 and January 2021, three patients with fetal posterior cerebral artery occlusion were identified from 400 patients who underwent angiogram and/or mechanical thrombectomy for acute stroke (0.75%). The first patient presented with concomitant fetal posterior cerebral artery and middle cerebral artery occlusions. Thrombectomy was performed with recanalisation of the fetal posterior cerebral artery but the patient died from malignant oedema. The second patient presented with isolated fetal posterior cerebral artery occlusion. No endovascular intervention was performed and the patient was disabled from malignant posterior cerebral artery infarct. The third patient presented with carotid occlusion and was found to have fetal posterior cerebral artery occlusion after internal carotid artery recanalisation. No further intervention was performed. The patient was left with residual contralateral homonymous hemianopia and mild left sided weakness.</p><p><strong>Conclusion: </strong>Fetal posterior cerebral artery occlusion is a rare, but potentially disabling, cause of ischaemic stroke. Endovascular treatment is feasible. Further investigation is needed to compare the efficacy of medical versus endovascular management strategies.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"381-385"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138324/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39068128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alpha-methyl acetyl-coA racemase deficiency. Magnetic resonance imaging findings of three patients with encephalopathy, epilepsy, and stroke-like episodes.","authors":"Maria I Palacio-Montoya, Diego A Herrera, Sergio A Vargas, Mauricio Castillo","doi":"10.1177/19714009231187342","DOIUrl":"10.1177/19714009231187342","url":null,"abstract":"<p><p>Alpha-methyl acyl-CoA racemase deficiency (AMACRD) is a rare peroxisomal disorder that results in the accumulation of pristanic acid and 16 cases have been reported in the literature. Here, we present three additional patients, two confirmed by genomic study and one suspected. Three siblings who were born to healthy unrelated parents developed recurrent episodes of encephalopathy, seizures, and behavioral disturbances. In all 3, brain MRI showed lesions in the thalami, cerebral peduncles, and mesencephalic tegmentum, as well as brain volume loss. In addition, one patient had a chronic hemispheric infarct and an acute contralateral infarct, and another had a subacute infarct involving multiple vascular territories without abnormalities on MR angiography.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"351-356"},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138336/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9776069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MR imaging differentiating features between lytic and degenerative lumbosacral spondylolisthesis.","authors":"George K Vilanilam, Shruti Kumar, Surjith Vattoth","doi":"10.1177/19714009231177409","DOIUrl":"10.1177/19714009231177409","url":null,"abstract":"<p><p>Spondylolisthesis is characterized by the displacement of one vertebral body in relation to the adjacent vertebra. It is commonly observed in the lower lumbar region and can be caused by a variety of factors, including spondylolysis (a fracture in the pars interarticularis) or degenerative disease. Magnetic resonance imaging (MRI) is becoming increasingly popular as the primary modality for evaluation of low back pain and is often used in the absence of radiographs or Computed Tomography. However, it can be challenging for radiologists to differentiate between the two types of spondylolisthesis based on MRI alone. The goal of this article is to identify key imaging features on MRI that can aid radiologists in differentiating between spondylolysis and degenerative spondylolisthesis on MRI. Five key concepts are discussed: the \"step-off\" sign, the \"wide canal\" sign, T2 cortical bone signal on MRI, epidural fat interposition, and fluid in the facet joints. The utility, limitations and potential pitfalls of these concepts are also discussed to provide a comprehensive understanding of their use in differentiating between the two types of spondylolisthesis on MRI.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"276-284"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138341/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9499024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic resonance relaxometry in quantitative imaging of brain gliomas: A literature review.","authors":"Ivan V Chekhonin, Ouri Cohen, Ricardo Otazo, Robert J Young, Andrei I Holodny, Igor N Pronin","doi":"10.1177/19714009231173100","DOIUrl":"10.1177/19714009231173100","url":null,"abstract":"<p><p>Magnetic resonance (MR) relaxometry is a quantitative imaging method that measures tissue relaxation properties. This review discusses the state of the art of clinical proton MR relaxometry for glial brain tumors. Current MR relaxometry technology also includes MR fingerprinting and synthetic MRI, which solve the inefficiencies and challenges of earlier techniques. Despite mixed results regarding its capability for brain tumor differential diagnosis, there is growing evidence that MR relaxometry can differentiate between gliomas and metastases and between glioma grades. Studies of the peritumoral zones have demonstrated their heterogeneity and possible directions of tumor infiltration. In addition, relaxometry offers T2* mapping that can define areas of tissue hypoxia not discriminated by perfusion assessment. Studies of tumor therapy response have demonstrated an association between survival and progression terms and dynamics of native and contrast-enhanced tumor relaxometric profiles. In conclusion, MR relaxometry is a promising technique for glial tumor diagnosis, particularly in association with neuropathological studies and other imaging techniques.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"267-275"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138331/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9753343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare case of syringohydromyelia expansion after kyphotic cervical deformity correction in a patient with history of spinal coccidiomeningitis.","authors":"Kelly Gassie, Brittany Rea, Robert Zamore, Puya Alikhani","doi":"10.1177/19714009231193160","DOIUrl":"10.1177/19714009231193160","url":null,"abstract":"<p><p>Syringomyelia resulting from arachnoiditis due to disseminated coccidioidomycosis meningitis has been previously established in the literature. Worsening syringomyelia after kyphotic cervical deformity correction in a patient with spinal coccidioidomycosis, however, has not yet been reported. Herein we present an extremely rare case of disseminated coccidioidomycosis with cystic cervical lesions and an associated syrinx which, after undergoing cervical kyphotic deformity correction in the setting of iatrogenic loss of cervical lordosis, experienced acute syrinx expansion requiring urgent syringosubarachnoid shunt. To our understanding, this is the first case reported of such an event.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"361-365"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138335/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10314982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic evaluation of deep learning accelerated lumbar spine MRI.","authors":"Komal M Awan, Augusto Lio M Goncalves Filho, Azadeh Tabari, Brooks P Applewhite, Min Lang, Wei-Ching Lo, Robert Sellers, Peter Kollasch, Bryan Clifford, Dominik Nickel, Jad Husseni, Otto Rapalino, Pamela Schaefer, Stephen Cauley, Susie Y Huang, John Conklin","doi":"10.1177/19714009231224428","DOIUrl":"10.1177/19714009231224428","url":null,"abstract":"<p><strong>Background and purpose: </strong>Deep learning (DL) accelerated MR techniques have emerged as a promising approach to accelerate routine MR exams. While prior studies explored DL acceleration for specific lumbar MRI sequences, a gap remains in comprehending the impact of a fully DL-based MRI protocol on scan time and diagnostic quality for routine lumbar spine MRI. To address this, we assessed the image quality and diagnostic performance of a DL-accelerated lumbar spine MRI protocol in comparison to a conventional protocol.</p><p><strong>Methods: </strong>We prospectively evaluated 36 consecutive outpatients undergoing non-contrast enhanced lumbar spine MRIs. Both protocols included sagittal T1, T2, STIR, and axial T2-weighted images. Two blinded neuroradiologists independently reviewed images for foraminal stenosis, spinal canal stenosis, nerve root compression, and facet arthropathy. Grading comparison employed the Wilcoxon signed rank test. For the head-to-head comparison, a 5-point Likert scale to assess image quality, considering artifacts, signal-to-noise ratio (SNR), anatomical structure visualization, and overall diagnostic quality. We applied a 15% noninferiority margin to determine whether the DL-accelerated protocol was noninferior.</p><p><strong>Results: </strong>No significant differences existed between protocols when evaluating foraminal and spinal canal stenosis, nerve compression, or facet arthropathy (all <i>p</i> > .05). The DL-spine protocol was noninferior for overall diagnostic quality and visualization of the cord, CSF, intervertebral disc, and nerve roots. However, it exhibited reduced SNR and increased artifact perception. Interobserver reproducibility ranged from moderate to substantial (κ = 0.50-0.76).</p><p><strong>Conclusion: </strong>Our study indicates that DL reconstruction in spine imaging effectively reduces acquisition times while maintaining comparable diagnostic quality to conventional MRI.</p>","PeriodicalId":47358,"journal":{"name":"Neuroradiology Journal","volume":" ","pages":"323-331"},"PeriodicalIF":1.2,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139404799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}