Abstract：
BACKGROUND:The purpose of this study is to map spatial metabolite differences across three molecular subgroups of glial tumors, defined by the IDH1/2 mutation and 1p19q-co-deletion, using magnetic resonance spectroscopy. This work reports a new MR spectroscopy based classification algorithm by applying a radiomics analytics pipeline. MATERIALS:65 patients received anatomical and chemical shift imaging (5 × 5 × 20 mm voxel size). Tumor regions were segmented and registered to corresponding spectroscopic voxels. Spectroscopic features were computed (n = 860) in a radiomic approach and selected by a classification algorithm. Finally, a random forest machine-learning model was trained to predict the molecular subtypes. RESULTS:A cluster analysis identified three robust spectroscopic clusters based on the mean silhouette widths. Molecular subgroups were significantly associated with the computed spectroscopic clusters (Fisher's Exact test p < 0.01). A machine-learning model was trained and validated by public available MRS data (n = 19). The analysis showed an accuracy rate in the Random Forest model by 93.8%. CONCLUSIONS:MR spectroscopy is a robust tool for predicting the molecular subtype in gliomas and adds important diagnostic information to the preoperative diagnostic work-up of glial tumor patients. MR-spectroscopy could improve radiological diagnostics in the future and potentially influence clinical and surgical decisions to improve individual tumor treatment.
journal_name
J Neurooncoljournal_title
Journal of neuro-oncologyauthors
Diamandis E,Gabriel CPS,Würtemberger U,Guggenberger K,Urbach H,Staszewski O,Lassmann S,Schnell O,Grauvogel J,Mader I,Heiland DHdoi
10.1007/s11060-018-2881-xsubject
Has Abstractpub_date
2018-09-01 00:00:00pages
431-440issue
2eissn
0167-594Xissn
1573-7373pii
10.1007/s11060-018-2881-xjournal_volume
139pub_type
杂志文章abstract：:Meningioma is a common intracranial tumor, originating from the meninges of the skull or spinal canal. Most meningiomas are benign tumors, however atypical or anaplastic tumors can be found in 6% of cases. Patients with asymptomatic small benign meningiomas can be followed without therapy, but in symptomatic patients ...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章,评审
doi：10.1007/s11060-008-9734-y
更新日期：2009-03-01 00:00:00
abstract：:Twenty-nine patients received the cytotoxic radiosensitizing agent lonidamine before, during, and after cranial irradiation for brain metastases. One patient was ineligible (meningioma). In 28 eligible patients, median survival was 29 weeks (range, 2 to > 220 weeks). Nine patients (32%) survived > 1 year and 3 (11%) s...
journal_title：Journal of neuro-oncology
pub_type： 临床试验,杂志文章
doi：10.1007/BF01050258
更新日期：1993-01-01 00:00:00
abstract：INTRODUCTION:Informal family caregivers (FCG) are an integral and crucial human component in the cancer care continuum. However, research and interventions to help alleviate documented anxiety and burden on this group is lacking. To address the absence of effective interventions, we developed the electronic Support Net...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s11060-018-2909-2
更新日期：2018-09-01 00:00:00
abstract：:Primary intramedullary spinal cord tumors are a rare entity, comprising 4–10 %of all spinal cord tumors. The current report presents data on intramedullary spinal cord anaplastic astrocytomas and glioblastomas in adults using the national surveillance, epidemiology, and end results database (1973–2008), and evaluates ...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-013-1296-y
更新日期：2013-12-01 00:00:00
abstract：OBJECT:There is little population-based data available on primary spinal cord tumors. Many of the existing statistics are not current or were obtained from surgical series. Historically, population-based data were collected only for malignant tumors, and only recently have data begun to be collected on non-malignant tu...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-007-9507-z
更新日期：2008-04-01 00:00:00
abstract：:Mutations in the gene encoding isocitrate dehydrogenase 1 (IDH1) have been identified in approximately 70-80 % of astrocytomas and oligodendrogliomas of WHO grades II and III, and in secondary glioblastomas. In addition, a low incidence of IDH2 mutations has been detected in these tumors, and the occurence of IDH1 and...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-012-0863-y
更新日期：2012-08-01 00:00:00
abstract：:Tripartite motif (TRIM) proteins are involved in tumorigenesis. Here, we examined the expression, biological function, and clinical significance of tripartite motif containing 28 (TRIM28) in glioma, a locally aggressive brain tumor. First, TRIM28 expression was significantly higher in glioma (n = 138) than in non-glio...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-015-1897-8
更新日期：2016-01-01 00:00:00
abstract：BACKGROUND:A prospective Phase II study of CPT-11 in adult patients with recurrent supratentorial glioblastoma multiforme (GBM). METHODS:Forty patients (25 men, 15 women) ages 32-71 years (median 59), with recurrent GBM were treated. All patients had previously been treated with surgery and involved field radiotherapy...
journal_title：Journal of neuro-oncology
pub_type： 临床试验,杂志文章
doi：10.1023/a:1014532202188
更新日期：2002-01-01 00:00:00
abstract：:Choroid plexus papillomas (CPPs) are generally regarded as benign tumours, with a favourable long-term prognosis. Complete resection should result in cure. We present a case of diffuse craniospinal seeding from an apparently completely resected fourth ventricular primary tumour. A 51-year-old male is discussed, who pr...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1023/a:1015044012574
更新日期：2002-02-01 00:00:00
abstract：:Glioma is the most common primary brain tumor in adults. Six3 is a human homologue of the highly conserved sine oculis gene family and essential transcription regulatory factor in process of eye and fetal forebrain development. However, little is known about the role of Six3 in human tumorigenesis. The aim of this stu...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-017-2476-y
更新日期：2017-07-01 00:00:00
abstract：:Compared to classical oncological outcome measures such as time to progression and survival, the importance of cognitive functioning in patients with diffuse infiltrative brain tumors has only recently been recognized. Apart from the relatively low incidence and the invariably fatal outcome of gliomas, the general ass...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章,评审
doi：10.1007/s11060-012-0811-x
更新日期：2012-06-01 00:00:00
abstract：:To identify molecular therapeutic targets for glioma, we performed gene expression profiling by using a complementary DNA (cDNA) microarray method and identified the urokinase plasminogen activator receptor-associated protein (uPARAP/Endo180) as a gene expressed highly in glioma tissue compared with the normal brain t...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-010-0398-z
更新日期：2011-06-01 00:00:00
abstract：:Long non-coding RNAs (lncRNAs) are important modulators of various cellular and molecular events, including cancer-associated pathways. The Anti-differentiation ncRNA (ANCR) is a key regulator of keratinocyte differentiation, where its expression is necessary to maintain epidermal progenitor's cells. Herein, we invest...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-018-2809-5
更新日期：2018-06-01 00:00:00
abstract：:Previous study revealed that higher expression of transforming growth factor beta induced (TGFBI) is correlated to poorer cancer-specific survival and higher proportion of tumor necrosis and Fuhrman grades III and IV in clear cell renal cell carcinomas. However, the relationships between TGFBI expression and malignant...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-017-2729-9
更新日期：2018-04-01 00:00:00
abstract：:We evaluated the local control of gamma knife stereotactic radiosurgery (GKSRS) in the treatment of cerebral metastases from primary tumors that rarely metastasize to the central nervous system (CNS). There is little published data on this subject with very few series on specific primary tumors. We present our experie...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-012-0916-2
更新日期：2012-09-01 00:00:00
abstract：:The diagnosis of leptomeningeal metastases (LM) of solid tumors is complicated due to low sensitivities of both magnetic resonance imaging (MRI) and cytology. MRI has a sensitivity of 76% for the diagnosis of LM and cerebrospinal fluid (CSF) cytology has a sensitivity of 44-67% at first lumbar puncture which increases...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章,评审
doi：10.1007/s11060-017-2691-6
更新日期：2018-03-01 00:00:00
abstract：:Malignant gliomas are the main brain tumors notoriously resistant to currently available therapies, since they fail to undergo apoptosis upon anticancer treatment. Recent progress on enhanced studies of ion channels involved in glioma cells shed new light on the investigation of glioma cell growth and proliferation. H...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-004-4205-6
更新日期：2005-05-01 00:00:00
abstract：:Successful management of a heavily pretreated 58-year-old woman with metastatic esthesioneuoblastoma using temozolomide is reported. There is no standard treatment of this tumors with extra- and intracranial manifestations. The response, long term stability and high quality of life using temozolomide for this tumor en...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1023/b:neon.0000040826.30636.4a
更新日期：2004-10-01 00:00:00
abstract：:We present a case of de novo fibrosarcoma in a 43-year-old male, with MRI documented evolution from a 5 mm hyperintense area to 5 cm tumor mass in a 12-month period. The diagnosis of low-grade fibrosarcoma was established by three experienced neuropathologists. The patient underwent gross total resection with adjuvant...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-008-9756-5
更新日期：2009-04-01 00:00:00
abstract：:A major toxic effect of the chemotherapeutic agents paclitaxel and cisplatin is peripheral neuropathy. We report the use of a rat model of cytotoxic neuropathy to evaluate the role of glutamate as a possible neuroprotectant for these two drugs. Neuropathy was manifest as gait disturbance in 100% of paclitaxel treated ...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1023/a:1006124917643
更新日期：1999-01-01 00:00:00
abstract：:Glioblastoma multiforme is a primary brain tumor associated with extensive invasion into surrounding brain tissue. Matrix metalloproteinases (MMPs) and urokinase plasminogen activation (uPA) system are shown to be involved in tumor invasion as they help in degradation of extracellular matrix (ECM) proteins and thus as...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-006-9126-0
更新日期：2006-09-01 00:00:00
abstract：BACKGROUND:The Brain Tumor Reporting and Data System (BT-RADS) category 3 is suitable for identifying cases with intermediate probability of tumor recurrence that do not meet the Response Assessment in Neuro-Oncology (RANO) criteria for progression. The aim of this study was to evaluate the added value of dynamic susce...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-019-03387-6
更新日期：2020-01-01 00:00:00
abstract：:We observed three neoplasms with completely different histologies: malignant fibrous histiocytoma (MFH), atypical meningioma (AM), and glioblastoma (GB), developing in a patient with Li-Fraumeni syndrome. By using a combined molecular approach we performed molecular characterization of all three tumours. Data obtained...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-004-9181-3
更新日期：2005-01-01 00:00:00
abstract：:Papillary meningioma is a rare subtype of meningioma that often behaves aggressively. In order to characterize factors that may influence this behavior, we chose to compare MIB-1 labeling index (LI) and telomerase RNA localization (hTR) in papillary meningiomas, meningiomas, and atypical meningiomas. LI is now often u...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1023/a:1006353322307
更新日期：1999-01-01 00:00:00
abstract：:Pediatric brain gliomas are not always amenable for complete surgical excision, therefore adjuvant treatment for a large tumor mass is often required. As tumor volume shrinkage may not be a reliable method for assessing response to treatment, information about the tumor growth potential is desirable for an adequate fo...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1023/a:1006120623949
更新日期：1999-02-01 00:00:00
abstract：:In earlier studies, we demonstrated that intratumoral infusions of alloreactive cytotoxic T lymphocytes (aCTL), sensitized to the major histocompatibility complex (MHC) antigens of the host, effectively retarded the intracranial growth of Fischer 9L gliosarcoma. We further demonstrated that continuous in vitro exposur...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/BF02700024
更新日期：2003-08-01 00:00:00
abstract：:A phase I study was conducted to evaluate the dose-limiting toxicities (DLTs) and to determine the maximum tolerated dose (MTD)/recommended phase II dose of bendamustine with concurrent whole brain radiation (WBR) in patients with brain metastases (BM) from solid tumors. Four doses of intravenous weekly bendamustine w...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-014-1510-6
更新日期：2014-09-01 00:00:00
abstract：:Neurocytomas gained importance since 1995, which is reflected by the increasing number of reports on this entity. This study was performed to determine the best available treatment for typical and atypical neurocytomas (MIB-1 labeling index >3%, atypical histology) in various age groups (
journal_title：Journal of neuro-oncology
pub_type： 杂志文章,评审
doi：10.1007/s11060-005-9047-3
更新日期：2006-05-01 00:00:00
abstract：:The value of perfusion and diffusion-weighted MRI in differentiating histological subtypes according to the 2007 WHO glioma classification scheme (i.e. astrocytoma vs. oligodendroglioma) and genetic subtypes according to the 2016 WHO reclassification (e.g. 1p/19q co-deletion and IDH1 mutation status) in WHO grade II a...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1007/s11060-017-2506-9
更新日期：2017-08-01 00:00:00
abstract：:Diffuse invasion of the brain by tumor cells is a hallmark of human glioblastomas and a major cause for the poor prognosis of these tumors. This phenomenon is only partially reproduced by rodent models of gliomas that display a very high rate of proliferation and limited cell migration. We have analyzed the developmen...
journal_title：Journal of neuro-oncology
pub_type： 杂志文章
doi：10.1023/a:1010620420241
更新日期：2001-05-01 00:00:00
