Hiroharu Suzuki, Y. Iimura, Takumi Mitsuhashi, T. Ueda, K. Nishioka, Madoka Nakajima, H. Sugano
{"title":"Implanting Intracranial Electrodes with ROSA One Brain Assistance","authors":"Hiroharu Suzuki, Y. Iimura, Takumi Mitsuhashi, T. Ueda, K. Nishioka, Madoka Nakajima, H. Sugano","doi":"10.7887/jcns.31.393","DOIUrl":"https://doi.org/10.7887/jcns.31.393","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Radiological imaging plays a pivotal role in glioma patient care. It provides qualitative information about the tumor, such as the presumed pathological diagnosis and molecular status. In addition, it can provide anatomical information necessary for surgery and is helpful for monitoring treatment response. In this review, we discuss the following topics: 1.The progress in radiomics in the field of glioma. 2.Detailed analysis of the T2‒FLAIR mismatch sign. 3.The potential of quantitative magnetic resonance(MR)imaging in the realm of qualitative glioma imaging. Radiomics“focuses on improvements in image analysis, using an automated high‒throughput extraction of large amounts(200+)of quantitative features of medical images”. Despite extensive research, its diagnostic accuracy for detecting IDH mutations is limited to approximately 85% sensitivity and specificity. The diagnosis of 1p/19q co‒deletion is 10% less accurate than that of the IDH mutation. The accuracy for diagnosing MGMT promoter methylation is still uncertain. Furthermore, the generalization of diagnostic algorithms derived from machine learning is another critical issue. While many researchers in the community have pushed radiomic research to the limit, a conventional qualitative imaging feature, namely, “the T2‒FLAIR mismatch sign,”was discovered. This imaging feature is able to identify IDH‒mutant, 1p/19q non‒codeleted astrocytomas with a sensitivity of 20‒ 50% and a specificity of almost 100%. Through radiomic research of gliomas, the authors noticed potential effects of differences in image acquisition parameters between different institutions on the low sensitivity of the T2‒FLAIR mismatch sign for detecting IDH‒mutant and 1p/19q non‒codeleted astrocytomas. Indeed, tuning the image acquisition parameters for FLAIR significantly improved the sensitivity of the T2‒FLAIR mismatch sign. Finally, the future of MR‒based glioma imaging relies on quantitative MR acquisition. This technique directly measures the tissue’s T1‒ and T2‒relaxation times, which provides valuable information for cancer tissue characterization. For example, we found that IDH‒mutant, 1p/19q non‒codeleted astrocytomas contain tissues with very long T1‒ and T2‒relaxation times(longer than 3,000 ms in T1‒relaxation time). The commercialization of rapid quantitative MR acquisition technology could further boost the capability of radiomics. (Received July 26, 2021;accepted September 1, 2021)
{"title":"Advances in the Qualitative Diagnosis of Glioma : Correlation between Radiological Images and Genetic Alterations","authors":"M. Kinoshita, Y. Kanemura, Y. Narita, H. Kishima","doi":"10.7887/jcns.31.4","DOIUrl":"https://doi.org/10.7887/jcns.31.4","url":null,"abstract":"Radiological imaging plays a pivotal role in glioma patient care. It provides qualitative information about the tumor, such as the presumed pathological diagnosis and molecular status. In addition, it can provide anatomical information necessary for surgery and is helpful for monitoring treatment response. In this review, we discuss the following topics: 1.The progress in radiomics in the field of glioma. 2.Detailed analysis of the T2‒FLAIR mismatch sign. 3.The potential of quantitative magnetic resonance(MR)imaging in the realm of qualitative glioma imaging. Radiomics“focuses on improvements in image analysis, using an automated high‒throughput extraction of large amounts(200+)of quantitative features of medical images”. Despite extensive research, its diagnostic accuracy for detecting IDH mutations is limited to approximately 85% sensitivity and specificity. The diagnosis of 1p/19q co‒deletion is 10% less accurate than that of the IDH mutation. The accuracy for diagnosing MGMT promoter methylation is still uncertain. Furthermore, the generalization of diagnostic algorithms derived from machine learning is another critical issue. While many researchers in the community have pushed radiomic research to the limit, a conventional qualitative imaging feature, namely, “the T2‒FLAIR mismatch sign,”was discovered. This imaging feature is able to identify IDH‒mutant, 1p/19q non‒codeleted astrocytomas with a sensitivity of 20‒ 50% and a specificity of almost 100%. Through radiomic research of gliomas, the authors noticed potential effects of differences in image acquisition parameters between different institutions on the low sensitivity of the T2‒FLAIR mismatch sign for detecting IDH‒mutant and 1p/19q non‒codeleted astrocytomas. Indeed, tuning the image acquisition parameters for FLAIR significantly improved the sensitivity of the T2‒FLAIR mismatch sign. Finally, the future of MR‒based glioma imaging relies on quantitative MR acquisition. This technique directly measures the tissue’s T1‒ and T2‒relaxation times, which provides valuable information for cancer tissue characterization. For example, we found that IDH‒mutant, 1p/19q non‒codeleted astrocytomas contain tissues with very long T1‒ and T2‒relaxation times(longer than 3,000 ms in T1‒relaxation time). The commercialization of rapid quantitative MR acquisition technology could further boost the capability of radiomics. (Received July 26, 2021;accepted September 1, 2021)","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Current Status and Issues in the Neurosurgical Practice of the National Medical Care Fee System in Japan","authors":"Y. Shiokawa","doi":"10.7887/jcns.31.172","DOIUrl":"https://doi.org/10.7887/jcns.31.172","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Significance of the Treatment Environment in Conventional Therapy of Pediatric Brain Tumors","authors":"Y. Aihara, Kentaro Chiba, T. Kawamata","doi":"10.7887/jcns.31.225","DOIUrl":"https://doi.org/10.7887/jcns.31.225","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Head trauma among children is a common presentation encountered on a daily basis, although most of which are mild and do not require neurosurgical management. However, it is necessary to understand the pathological characteristics of head trauma peculiar to children. Radiation exposure to children should be avoided as much as possible because children have higher radiation sensitivity than adults. Three clinical decision rules derived from multicenter studies were used to identify the risk for intracranial injuries and to minimize the use of computed tomography （ CT ） scans. Pediatric ‒ specific pathology such as extracranial hematoma, accessory suture, benign enlargement of the subarachnoid spaces, abusive head trauma, and bone resorption after decompressive craniotomy are also outlined. Since medico ‒ social opinions are required as an expert of the brain, accurate diagnosis and appropriate treatment to children with up ‒ to ‒ date knowledge is essential.
{"title":"Peculiar Pathological Conditions in Pediatric Head Trauma","authors":"A. Harada, Natsuki Nakamura, Takumi Yamanaka","doi":"10.7887/jcns.31.234","DOIUrl":"https://doi.org/10.7887/jcns.31.234","url":null,"abstract":"Head trauma among children is a common presentation encountered on a daily basis, although most of which are mild and do not require neurosurgical management. However, it is necessary to understand the pathological characteristics of head trauma peculiar to children. Radiation exposure to children should be avoided as much as possible because children have higher radiation sensitivity than adults. Three clinical decision rules derived from multicenter studies were used to identify the risk for intracranial injuries and to minimize the use of computed tomography （ CT ） scans. Pediatric ‒ specific pathology such as extracranial hematoma, accessory suture, benign enlargement of the subarachnoid spaces, abusive head trauma, and bone resorption after decompressive craniotomy are also outlined. Since medico ‒ social opinions are required as an expert of the brain, accurate diagnosis and appropriate treatment to children with up ‒ to ‒ date knowledge is essential.","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shunsuke Omodaka, H. Endo, M. Fujimura, T. Tominaga
{"title":"Role of Vessel Wall Imaging in the Diagnosis of Intracranial Aneurysms","authors":"Shunsuke Omodaka, H. Endo, M. Fujimura, T. Tominaga","doi":"10.7887/jcns.31.81","DOIUrl":"https://doi.org/10.7887/jcns.31.81","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Advantages and Disadvantages of Flow Diverter Treatment for Cerebral Aneurysms","authors":"A. Ishii","doi":"10.7887/jcns.31.98","DOIUrl":"https://doi.org/10.7887/jcns.31.98","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Carotid Endarterectomy for Effective Management of Traumatic Extracranial Carotid Artery Dissection following a Penetrating Neck Injury : A Case Report","authors":"K. Shinno, Yuya Watari, Shoichi Hatada, T. Tamura","doi":"10.7887/jcns.31.119","DOIUrl":"https://doi.org/10.7887/jcns.31.119","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71347914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Surgery of Spinal Schwannomas : Preservation of Neuronal Function and Prevention of Complications","authors":"T. Sugawara","doi":"10.7887/jcns.31.302","DOIUrl":"https://doi.org/10.7887/jcns.31.302","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Igarashi, Y. Kokubo, R. Kondo, S. Saito, Kazuhiko Sato, T. Kinjo, M. Akasaka, T. Kumagai, S. Takemura, Chin-Chang Su, E. Kamatsuka, T. Sasaki, T. Kayama, Y. Sonoda
{"title":"The Incidence and Age Trends of Chronic Subdural Hematoma in Yamagata Prefecture from 2004 to 2018","authors":"K. Igarashi, Y. Kokubo, R. Kondo, S. Saito, Kazuhiko Sato, T. Kinjo, M. Akasaka, T. Kumagai, S. Takemura, Chin-Chang Su, E. Kamatsuka, T. Sasaki, T. Kayama, Y. Sonoda","doi":"10.7887/jcns.31.181","DOIUrl":"https://doi.org/10.7887/jcns.31.181","url":null,"abstract":"","PeriodicalId":39918,"journal":{"name":"Japanese Journal of Neurosurgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71348248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：