Abstract:
:In this retrospective, IRB-exempt study, we analyzed data from 68 patients diagnosed with glioblastoma (GBM) in two institutions and investigated the relationship between tumor shape, quantified using algorithmic analysis of magnetic resonance images, and survival. Each patient's Fluid Attenuated Inversion Recovery (FLAIR) abnormality and enhancing tumor were manually delineated, and tumor shape was analyzed by automatic computer algorithms. Five features were automatically extracted from the images to quantify the extent of irregularity in tumor shape in two and three dimensions. Univariate Cox proportional hazard regression analysis was performed to determine how prognostic each feature was of survival. Kaplan Meier analysis was performed to illustrate the prognostic value of each feature. To determine whether the proposed quantitative shape features have additional prognostic value compared with standard clinical features, we controlled for tumor volume, patient age, and Karnofsky Performance Score (KPS). The FLAIR-based bounding ellipsoid volume ratio (BEVR), a 3D complexity measure, was strongly prognostic of survival, with a hazard ratio of 0.36 (95% CI 0.20-0.65), and remained significant in regression analysis after controlling for other clinical factors (P = 0.0061). Three enhancing-tumor based shape features were prognostic of survival independently of clinical factors: BEVR (P = 0.0008), margin fluctuation (P = 0.0013), and angular standard deviation (P = 0.0078). Algorithmically assessed tumor shape is statistically significantly prognostic of survival for patients with GBM independently of patient age, KPS, and tumor volume. This shows promise for extending the utility of MR imaging in treatment of GBM patients.
journal_name
J Neurooncoljournal_title
Journal of neuro-oncologyauthors
Czarnek N,Clark K,Peters KB,Mazurowski MAdoi
10.1007/s11060-016-2359-7subject
Has Abstractpub_date
2017-03-01 00:00:00pages
55-62issue
1eissn
0167-594Xissn
1573-7373pii
10.1007/s11060-016-2359-7journal_volume
132pub_type
杂志文章,多中心研究abstract::ERCC1 and ERCC2 have been known to belong to the nucleotide excision repair (NER) pathway and are essential to the repair of cisplatin DNA adducts. In the present study, we have examined the potential correlation of ERCC1, ERCC2 mRNA expression and single nucleotide polymorphism (SNP) to chemotherapy drug cytotoxicity...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-006-9290-2
更新日期:2007-05-01 00:00:00
abstract::Neural cell adhesion molecule (NCAM) is down-regulated during periods of embryological cell migration and may be important in local tumor migration or metastases. Conflicting information exists in the literature about NCAM expression in human glial tumors and little is known about its expression in human brain metasta...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1006162211296
更新日期:1999-01-01 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::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::The abilities of growth factors to cause normal cells to express the properties associated with transformed cells is discussed in specific reference to the oligodendrocyte-type-2 astrocyte (O-2A) progenitor cell. In the O-2A lineage, it has been possible to use growth factors and other defined molecules to induce or p...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1023/a:1005898228116
更新日期:1997-12-01 00:00:00
abstract::Radiation necrosis is a devastating complication following radiation to the central nervous system. The purpose of this study was to perform a comprehensive analysis of cases in the literature using bevacizumab, a monoclonal antibody against vascular endothelial growth factor, as treatment for radiation necrosis. A ME...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-014-1391-8
更新日期:2014-04-01 00:00:00
abstract:PURPOSE:Molecular data has become an essential part of the updated World Health Organization (WHO) grading of central nervous system tumors. However, stereotactic needle biopsies provide only small volume specimens and limit the extent of histologic and molecular testing that can be performed. We assessed the use of a ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-018-03014-w
更新日期:2019-01-01 00:00:00
abstract:QUESTION:What is the role of immunotherapy/tumor vaccines in the treatment of low grade gliomas? TARGET POPULATION:Adult patients with newly diagnosed WHO grade 2 astrocytoma, oligo-astroctyoma, or oligodendroglioma. RECOMMENDATIONS:There is no evidence to support a recommendation in regards to the efficacy of immuno...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1007/s11060-015-1865-3
更新日期:2015-12-01 00:00:00
abstract::Bevacizumab has been reported to cause diffusion restriction in the tumor bed of patients with malignant gliomas. This study evaluated prolonged diffusion restriction, in the corpus callosum (CC), of patients with malignant brain tumors treated with bevacizumab. We retrospectively reviewed our database of patients tre...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-014-1409-2
更新日期:2014-05-01 00:00:00
abstract::The most common medical problems in brain tumor patients include the management of seizures, peritumoral edema, medication side effects, venous thromboembolism (VTE), fatigue and cognitive dysfunction. Despite their importance, there are relatively few studies specifically addressing these issues. There is increasing ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1007/s11060-006-9193-2
更新日期:2006-12-01 00:00:00
abstract::The diagnosis of brain metastases is associated with a poor prognosis reflecting uncontrolled primary disease that has spread to the relative sanctuary of the central nervous system. 20 % of brain metastases occur in the posterior fossa and are associated with significant morbidity. The risk of acute hydrocephalus and...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-016-2254-2
更新日期:2016-12-01 00:00:00
abstract::Systemic high-dose methotrexate (HD-MTX) is the most effective chemotherapeutic agent in the treatment of primary central nervous system lymphoma (PCNSL). Leptomeningeal involvement is common and intrathecal methotrexate (IT-MTX) is frequently used in combination with HD-MTX, but its benefits are not established. Usin...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1016077907952
更新日期:2002-06-01 00:00:00
abstract:OBJECT:Etoposide, a topoisomerase-II inhibitor promotes DNA damage and apoptosis of cancer cells. In this study, we have examined the ability of the histone deacetylase inhibitor, valproic acid (VPA) to modulate gene expression and sensitize glioblastoma cell lines to the cytotoxic effects of etoposide in vitro. METHO...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-007-9402-7
更新日期:2007-11-01 00:00:00
abstract::Thirty-one patients with metastatic brain tumors that either failed to respond or recurred after conventional therapy were treated by intra-arterial infusion of 100 mg/m2 of 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) into either a carotid or vertebral artery. Five patients (three with lung cancer, one with breast can...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00165605
更新日期:1983-01-01 00:00:00
abstract::Neuroblastoma (NB) is a tumor of pediatric age that is associated with high mortality in metastatic stages, although stage IVS patients undergo frequent spontaneous regression. Since apoptosis has been proposed as a possible cause of remission among cancer patients, we tested this hypothesis among both localized and m...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1005738926317
更新日期:1997-01-01 00:00:00
abstract::The actual role of 18F-FDG PET/CT in evaluating primary brain lymphoma is still an open issue. Brain lymphoma usually show elevated 18F-FDG uptake, often higher than other brain tumors or inflammatory processes, but the metabolic behavior of this lymphoma is not still understood. Our aim was to investigate the particu...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-017-2686-3
更新日期:2018-02-01 00:00:00
abstract::To compare progression-free (PFS) and overall survival (OS) in patients treated in two consecutive phase II trials of hypofractionated-intensity modulated radiotherapy (hypo-IMRT) and temozolomide (TMZ) with or without bevacizumab (BEV). Patients with newly diagnosed glioblastoma multiforme (GBM) after biopsy or resec...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-015-1791-4
更新日期:2015-06-01 00:00:00
abstract::Cyclin-dependent kinase 4 inhibitor (CDKN2/p16) is a cell cycle regulatory protein that has been demonstrated to be inactivated by mutations, deletions or transcriptional silencing during pathogenesis of a variety of human malignancies. We studied the correlation of CDKN2/p16 expression with cell proliferation activit...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1006185220369
更新日期:1999-02-01 00:00:00
abstract::Macrophages play an important role in the regulation of malignant tumors. Although glioma contains abundance of macrophages, their role in apoptosis of glioma is not known. We stimulated macrophages with lipopolysaccharide and culture supernatants of activated macrophages were collected to treat glioma cells. The resu...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1015763916020
更新日期:2002-05-01 00:00:00
abstract::The mainstays of primary treatment of ependymoma are aggressive surgery followed by radiotherapy. Although spreading occasionally occurs in the cerebrospinal pathways, chemotherapy is still not established and no ultimate drug has so far been found. Estramustine-phosphate (EMP), with a demonstrated effect on astrocyto...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF01058354
更新日期:1994-01-01 00:00:00
abstract::Meningiomas that progress after standard therapies are challenging with limited effective chemotherapy options. This phase II trial evaluated the efficacy of everolimus plus bevacizumab in patients with recurrent, progressive meningioma after treatment with surgical resection and local radiotherapy when appropriate. P...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s11060-016-2172-3
更新日期:2016-09-01 00:00:00
abstract::To characterize a population of pediatric high-grade astrocytoma (HGA) patients by confirming the proportion with a correct diagnosis, and determine prognostic factors for survival in a subset diagnosed with uniform pathologic criteria. Sixty-three children diagnosed with HGA were treated at the Johns Hopkins Hospital...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-009-0102-3
更新日期:2010-08-01 00:00:00
abstract::Patients with unresectable glioblastoma or anaplastic astrocytoma have a dismal prognosis. The role of neoadjuvant chemotherapy prior to irradiation in these patients has been studied primarily in non-randomized studies. We have compared the effect of neoadjuvant chemotherapy plus radiotherapy versus concomitant radio...
journal_title:Journal of neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1007/s11060-013-1352-7
更新日期:2014-03-01 00:00:00
abstract::Radiation therapy (RT) for brain tumors is associated with neurocognitive toxicity which may be a result of damage to neural progenitor cells (NPCs). We present a novel technique to limit the radiation dose to NPC without compromising tumor coverage. A study was performed in mice to examine the rationale and another w...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-011-0530-8
更新日期:2011-09-01 00:00:00
abstract::We report a single-center experience of 16 immunocompetent patients diagnosed with primary central nervous system lymphoma and treated with monochemotherapy with high-dose methotrexate (MTX) and deferred radiotherapy. MTX was given at a dose of 8.0 g/m2 for induction and at a dose of 3.5-8.0 g/m2 for maintenance. Ther...
journal_title:Journal of neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1007/s11060-008-9736-9
更新日期:2009-03-01 00:00:00
abstract::Glioblastoma (GBM) is among the most aggressive primary brain tumors, with a median survival rate of 12-15 months. MicroRNAs have been implicated in GBM development as oncogenes or tumor suppressors. In this study, we demonstrated that miR-519a expression was frequently downregulated in GBM specimens and cell lines, a...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-016-2095-z
更新日期:2016-05-01 00:00:00
abstract::Malignant glioma (MG), the most common primary brain tumor in adults, is extremely aggressive and uniformly fatal. Several treatment strategies have shown significant preclinical promise in murine models of glioma; however, none have produced meaningful clinical responses in human patients. We hypothesize that introdu...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-018-2753-4
更新日期:2018-05-01 00:00:00
abstract::The use of radiation therapy in the management of intramedullary spinal cord tumors remains controversial. Several studies indicate that the use of postoperative radiation therapy modestly improves both local control and survival in spinal cord ependymomas and astrocytomas. Modern treatment planning and imaging allow ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1023/a:1006470523052
更新日期:2000-05-01 00:00:00
abstract:INTRODUCTION:Central nervous system hemangioblastoma is a benign tumor associated with or without von Hippel-Lindau (VHL) disease which is an autosomal dominant hereditary disease that results from a germline mutation in the VHL gene. A main axis of signaling pathways in central nervous system hemangioblastoma is VHL-H...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-020-03506-8
更新日期:2020-05-01 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