Outcomes after gamma knife radiosurgery for intraventricular meningiomas View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2022-07-26

AUTHORS

Alberto Daza-Ovalle, Othman Bin-Alamer, John Flickinger, Ajay Niranjan, L. Dade Lunsford

ABSTRACT

BackgroundIntraventricular meningiomas (IVMs) are rare tumors with considerable treatment-associated morbidity due to their challenging location. Treatment with stereotactic radiosurgery (SRS) is sparsely reported in the literature. We describe our experience over the last 35 years using Gamma knife radiosurgery (GKRS) for IVMs.MethodsWe retrospectively reviewed the GKRS database identifying 2501 meningiomas treated at the University of Pittsburgh Medical Center over the last 35 years. Nineteen patients with (12 males, mean age = 53.2 years, range 14–84) 20 IVMs were identified. Headache was the most frequent presenting symptom (N = 12), and the trigone of the lateral ventricle was the most common location (N = 18). The median tumor volume was 4.8 cc (range, 0.8–17). The median margin dose was 14 Gy (range, 12–25) delivered at 50% isodose line.ResultsAt a median follow-up of 63.1 months (range, 6–322.4) symptom control was achieved in 18 (94.7%) patients. The overall progression-free survival (PFS) was 95% at 5 years, and 85% at 10-years. After Log-rank test, patients who underwent GKRS within 12 months after diagnosis (vs. ≥ 12 months, X2: 4.455, p = 0.035), patients treated with primary GKRS without prior biopsy (vs. prior biopsy, X2: 4.000, p = 0.046), and patients with WHO grade I meningioma (vs. WHO II, X2: 9.000, p = 0.003) had a longer PFS. Imaging showed peritumoral edema in seven cases at a median of 10.5 (range, 6.13–24.3) months after GKRS. Only three of these patients were symptomatic and were successfully managed with oral medications. Cox´s regression revealed that a V12Gy ≥ 10 cc [HR: 10.09 (95% CI: 2.11–48.21), p = 0.004], and tumor volume ≥ 8 cc [HR: 5.87 (95% CI: 1.28–26.97), p = 0.023] were associated with a higher risk of peritumoral edema.ConclusionGKRS is an effective and safe management option for intraventricular meningiomas. Early GKRS should be considered as a primary management modality for small and medium sized IVM and adjuvant management for residual IVMs. More... »

PAGES

1-9

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11060-022-04091-8

DOI

http://dx.doi.org/10.1007/s11060-022-04091-8

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1149765999

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/35882752


Indexing Status Check whether this publication has been indexed by Scopus and Web Of Science using the SN Indexing Status Tool
Incoming Citations Browse incoming citations for this publication using opencitations.net

JSON-LD is the canonical representation for SciGraph data.

TIP: You can open this SciGraph record using an external JSON-LD service: JSON-LD Playground Google SDTT

[
  {
    "@context": "https://springernature.github.io/scigraph/jsonld/sgcontext.json", 
    "about": [
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/11", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Medical and Health Sciences", 
        "type": "DefinedTerm"
      }, 
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/1103", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Clinical Sciences", 
        "type": "DefinedTerm"
      }
    ], 
    "author": [
      {
        "affiliation": {
          "alternateName": "Neurosurgery Department, Center for Research and Training in Neurosurgery (CIEN), Samaritana University Hospital, Universidad del Rosario School of Medicine, Bogota, Colombia", 
          "id": "http://www.grid.ac/institutes/grid.412191.e", 
          "name": [
            "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA", 
            "Neurosurgery Department, Center for Research and Training in Neurosurgery (CIEN), Samaritana University Hospital, Universidad del Rosario School of Medicine, Bogota, Colombia"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Daza-Ovalle", 
        "givenName": "Alberto", 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA", 
          "id": "http://www.grid.ac/institutes/grid.412689.0", 
          "name": [
            "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Bin-Alamer", 
        "givenName": "Othman", 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA", 
          "id": "http://www.grid.ac/institutes/grid.412689.0", 
          "name": [
            "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Flickinger", 
        "givenName": "John", 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA", 
          "id": "http://www.grid.ac/institutes/grid.412689.0", 
          "name": [
            "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Niranjan", 
        "givenName": "Ajay", 
        "id": "sg:person.0755265657.90", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0755265657.90"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA", 
          "id": "http://www.grid.ac/institutes/grid.412689.0", 
          "name": [
            "Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Lunsford", 
        "givenName": "L. Dade", 
        "id": "sg:person.01001061026.19", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01001061026.19"
        ], 
        "type": "Person"
      }
    ], 
    "citation": [
      {
        "id": "sg:pub.10.1007/s10143-018-1019-0", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1106151974", 
          "https://doi.org/10.1007/s10143-018-1019-0"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s002340050759", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1048667338", 
          "https://doi.org/10.1007/s002340050759"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s00701-020-04520-5", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1130001573", 
          "https://doi.org/10.1007/s00701-020-04520-5"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s10143-005-0414-5", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1017663769", 
          "https://doi.org/10.1007/s10143-005-0414-5"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s00701-020-04281-1", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1125400405", 
          "https://doi.org/10.1007/s00701-020-04281-1"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s00701-009-0273-x", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1047264413", 
          "https://doi.org/10.1007/s00701-009-0273-x"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s11060-015-1911-1", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1024659363", 
          "https://doi.org/10.1007/s11060-015-1911-1"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s11060-022-03953-5", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1145095720", 
          "https://doi.org/10.1007/s11060-022-03953-5"
        ], 
        "type": "CreativeWork"
      }
    ], 
    "datePublished": "2022-07-26", 
    "datePublishedReg": "2022-07-26", 
    "description": "BackgroundIntraventricular meningiomas (IVMs) are rare tumors with considerable treatment-associated morbidity due to their challenging location. Treatment with stereotactic radiosurgery (SRS) is sparsely reported in the literature. We describe our experience over the last 35\u00a0years using Gamma knife radiosurgery (GKRS) for IVMs.MethodsWe retrospectively reviewed the GKRS database identifying 2501 meningiomas treated at the University of Pittsburgh Medical Center over the last 35\u00a0years. Nineteen patients with (12 males, mean age\u2009=\u200953.2\u00a0years, range 14\u201384) 20 IVMs were identified. Headache was the most frequent presenting symptom (N\u2009=\u200912), and the trigone of the lateral ventricle was the most common location (N\u2009=\u200918). The median tumor volume was 4.8\u00a0cc (range, 0.8\u201317). The median margin dose was 14\u00a0Gy (range, 12\u201325) delivered at 50% isodose line.ResultsAt a median follow-up of 63.1\u00a0months (range, 6\u2013322.4) symptom control was achieved in 18 (94.7%) patients. The overall progression-free survival (PFS) was 95% at 5\u00a0years, and 85% at 10-years. After Log-rank test, patients who underwent GKRS within 12\u00a0months after diagnosis (vs.\u2009\u2265\u200912\u00a0months, X2: 4.455, p\u2009=\u20090.035), patients treated with primary GKRS without prior biopsy (vs. prior biopsy, X2: 4.000, p\u2009=\u20090.046), and patients with WHO grade I meningioma (vs. WHO II, X2: 9.000, p\u2009=\u20090.003) had a longer PFS. Imaging showed peritumoral edema in seven cases at a median of 10.5 (range, 6.13\u201324.3) months after GKRS. Only three of these patients were symptomatic and were successfully managed with oral medications. Cox\u00b4s regression revealed that a V12Gy\u2009\u2265\u200910\u00a0cc [HR: 10.09 (95% CI: 2.11\u201348.21), p\u2009=\u20090.004], and tumor volume\u2009\u2265\u20098\u00a0cc [HR: 5.87 (95% CI: 1.28\u201326.97), p\u2009=\u20090.023] were associated with a higher risk of peritumoral edema.ConclusionGKRS is an effective and safe management option for intraventricular meningiomas. Early GKRS should be considered as a primary management modality for small and medium sized IVM and adjuvant management for residual IVMs.", 
    "genre": "article", 
    "id": "sg:pub.10.1007/s11060-022-04091-8", 
    "isAccessibleForFree": false, 
    "isPartOf": [
      {
        "id": "sg:journal.1094205", 
        "issn": [
          "0167-594X", 
          "1573-7373"
        ], 
        "name": "Journal of Neuro-Oncology", 
        "publisher": "Springer Nature", 
        "type": "Periodical"
      }
    ], 
    "keywords": [
      "gamma knife radiosurgery", 
      "progression-free survival", 
      "knife radiosurgery", 
      "tumor volume", 
      "stereotactic radiosurgery", 
      "peritumoral edema", 
      "intraventricular meningioma", 
      "early Gamma Knife radiosurgery", 
      "overall progression-free survival", 
      "longer progression-free survival", 
      "primary gamma knife radiosurgery", 
      "treatment-associated morbidity", 
      "median margin dose", 
      "primary management modality", 
      "frequent presenting symptom", 
      "median tumor volume", 
      "log-rank test", 
      "safe management option", 
      "Pittsburgh Medical Center", 
      "presenting symptom", 
      "margin dose", 
      "symptom control", 
      "adjuvant management", 
      "prior biopsy", 
      "oral medications", 
      "Cox regression", 
      "rare tumor", 
      "management modalities", 
      "grade I", 
      "lateral ventricle", 
      "Medical Center", 
      "high risk", 
      "patients", 
      "common location", 
      "isodose line", 
      "meningiomas", 
      "radiosurgery", 
      "IVM", 
      "edema", 
      "months", 
      "challenging locations", 
      "management options", 
      "years", 
      "CC", 
      "morbidity", 
      "medications", 
      "headache", 
      "biopsy", 
      "trigone", 
      "ResultsAt", 
      "tumors", 
      "symptoms", 
      "ventricle", 
      "MethodsWe", 
      "V12Gy", 
      "diagnosis", 
      "dose", 
      "median", 
      "survival", 
      "outcomes", 
      "treatment", 
      "modalities", 
      "risk", 
      "imaging", 
      "volume", 
      "regression", 
      "options", 
      "management", 
      "database", 
      "control", 
      "cases", 
      "center", 
      "test", 
      "experience", 
      "literature", 
      "location", 
      "lines", 
      "University"
    ], 
    "name": "Outcomes after gamma knife radiosurgery for intraventricular meningiomas", 
    "pagination": "1-9", 
    "productId": [
      {
        "name": "dimensions_id", 
        "type": "PropertyValue", 
        "value": [
          "pub.1149765999"
        ]
      }, 
      {
        "name": "doi", 
        "type": "PropertyValue", 
        "value": [
          "10.1007/s11060-022-04091-8"
        ]
      }, 
      {
        "name": "pubmed_id", 
        "type": "PropertyValue", 
        "value": [
          "35882752"
        ]
      }
    ], 
    "sameAs": [
      "https://doi.org/10.1007/s11060-022-04091-8", 
      "https://app.dimensions.ai/details/publication/pub.1149765999"
    ], 
    "sdDataset": "articles", 
    "sdDatePublished": "2022-09-02T16:07", 
    "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
    "sdPublisher": {
      "name": "Springer Nature - SN SciGraph project", 
      "type": "Organization"
    }, 
    "sdSource": "s3://com-springernature-scigraph/baseset/20220902/entities/gbq_results/article/article_926.jsonl", 
    "type": "ScholarlyArticle", 
    "url": "https://doi.org/10.1007/s11060-022-04091-8"
  }
]
 

Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1007/s11060-022-04091-8'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/s11060-022-04091-8'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/s11060-022-04091-8'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/s11060-022-04091-8'


 

This table displays all metadata directly associated to this object as RDF triples.

194 TRIPLES      21 PREDICATES      109 URIs      93 LITERALS      5 BLANK NODES

Subject Predicate Object
1 sg:pub.10.1007/s11060-022-04091-8 schema:about anzsrc-for:11
2 anzsrc-for:1103
3 schema:author N33a78a3f69004750badc11570842e50d
4 schema:citation sg:pub.10.1007/s002340050759
5 sg:pub.10.1007/s00701-009-0273-x
6 sg:pub.10.1007/s00701-020-04281-1
7 sg:pub.10.1007/s00701-020-04520-5
8 sg:pub.10.1007/s10143-005-0414-5
9 sg:pub.10.1007/s10143-018-1019-0
10 sg:pub.10.1007/s11060-015-1911-1
11 sg:pub.10.1007/s11060-022-03953-5
12 schema:datePublished 2022-07-26
13 schema:datePublishedReg 2022-07-26
14 schema:description BackgroundIntraventricular meningiomas (IVMs) are rare tumors with considerable treatment-associated morbidity due to their challenging location. Treatment with stereotactic radiosurgery (SRS) is sparsely reported in the literature. We describe our experience over the last 35 years using Gamma knife radiosurgery (GKRS) for IVMs.MethodsWe retrospectively reviewed the GKRS database identifying 2501 meningiomas treated at the University of Pittsburgh Medical Center over the last 35 years. Nineteen patients with (12 males, mean age = 53.2 years, range 14–84) 20 IVMs were identified. Headache was the most frequent presenting symptom (N = 12), and the trigone of the lateral ventricle was the most common location (N = 18). The median tumor volume was 4.8 cc (range, 0.8–17). The median margin dose was 14 Gy (range, 12–25) delivered at 50% isodose line.ResultsAt a median follow-up of 63.1 months (range, 6–322.4) symptom control was achieved in 18 (94.7%) patients. The overall progression-free survival (PFS) was 95% at 5 years, and 85% at 10-years. After Log-rank test, patients who underwent GKRS within 12 months after diagnosis (vs. ≥ 12 months, X2: 4.455, p = 0.035), patients treated with primary GKRS without prior biopsy (vs. prior biopsy, X2: 4.000, p = 0.046), and patients with WHO grade I meningioma (vs. WHO II, X2: 9.000, p = 0.003) had a longer PFS. Imaging showed peritumoral edema in seven cases at a median of 10.5 (range, 6.13–24.3) months after GKRS. Only three of these patients were symptomatic and were successfully managed with oral medications. Cox´s regression revealed that a V12Gy ≥ 10 cc [HR: 10.09 (95% CI: 2.11–48.21), p = 0.004], and tumor volume ≥ 8 cc [HR: 5.87 (95% CI: 1.28–26.97), p = 0.023] were associated with a higher risk of peritumoral edema.ConclusionGKRS is an effective and safe management option for intraventricular meningiomas. Early GKRS should be considered as a primary management modality for small and medium sized IVM and adjuvant management for residual IVMs.
15 schema:genre article
16 schema:isAccessibleForFree false
17 schema:isPartOf sg:journal.1094205
18 schema:keywords CC
19 Cox regression
20 IVM
21 Medical Center
22 MethodsWe
23 Pittsburgh Medical Center
24 ResultsAt
25 University
26 V12Gy
27 adjuvant management
28 biopsy
29 cases
30 center
31 challenging locations
32 common location
33 control
34 database
35 diagnosis
36 dose
37 early Gamma Knife radiosurgery
38 edema
39 experience
40 frequent presenting symptom
41 gamma knife radiosurgery
42 grade I
43 headache
44 high risk
45 imaging
46 intraventricular meningioma
47 isodose line
48 knife radiosurgery
49 lateral ventricle
50 lines
51 literature
52 location
53 log-rank test
54 longer progression-free survival
55 management
56 management modalities
57 management options
58 margin dose
59 median
60 median margin dose
61 median tumor volume
62 medications
63 meningiomas
64 modalities
65 months
66 morbidity
67 options
68 oral medications
69 outcomes
70 overall progression-free survival
71 patients
72 peritumoral edema
73 presenting symptom
74 primary gamma knife radiosurgery
75 primary management modality
76 prior biopsy
77 progression-free survival
78 radiosurgery
79 rare tumor
80 regression
81 risk
82 safe management option
83 stereotactic radiosurgery
84 survival
85 symptom control
86 symptoms
87 test
88 treatment
89 treatment-associated morbidity
90 trigone
91 tumor volume
92 tumors
93 ventricle
94 volume
95 years
96 schema:name Outcomes after gamma knife radiosurgery for intraventricular meningiomas
97 schema:pagination 1-9
98 schema:productId N06f853d94c56430f9d942c33dcf7faa5
99 N6fd888fa468a4bb4a64810d8ecdb0939
100 N8e7381b4e49a4057aef01235908038e7
101 schema:sameAs https://app.dimensions.ai/details/publication/pub.1149765999
102 https://doi.org/10.1007/s11060-022-04091-8
103 schema:sdDatePublished 2022-09-02T16:07
104 schema:sdLicense https://scigraph.springernature.com/explorer/license/
105 schema:sdPublisher Naf6462509d5b452e98b6bc64fd03ca24
106 schema:url https://doi.org/10.1007/s11060-022-04091-8
107 sgo:license sg:explorer/license/
108 sgo:sdDataset articles
109 rdf:type schema:ScholarlyArticle
110 N03cd626da15a4c78a45eae5c6b08fbe9 rdf:first sg:person.01001061026.19
111 rdf:rest rdf:nil
112 N06f853d94c56430f9d942c33dcf7faa5 schema:name pubmed_id
113 schema:value 35882752
114 rdf:type schema:PropertyValue
115 N19c353de2e3245e095df7e20e5b7b307 schema:affiliation grid-institutes:grid.412689.0
116 schema:familyName Bin-Alamer
117 schema:givenName Othman
118 rdf:type schema:Person
119 N33a78a3f69004750badc11570842e50d rdf:first N874677e207fe4685aa94df9aa50fa24a
120 rdf:rest N4ac9f042c30644bcbfb11e347eabfc36
121 N47373ed6e9604ce5836bacc4405821b4 schema:affiliation grid-institutes:grid.412689.0
122 schema:familyName Flickinger
123 schema:givenName John
124 rdf:type schema:Person
125 N4ac9f042c30644bcbfb11e347eabfc36 rdf:first N19c353de2e3245e095df7e20e5b7b307
126 rdf:rest N90fa1cdbbeec4cc4bdc6ddbf8e6b217b
127 N6fd888fa468a4bb4a64810d8ecdb0939 schema:name doi
128 schema:value 10.1007/s11060-022-04091-8
129 rdf:type schema:PropertyValue
130 N874677e207fe4685aa94df9aa50fa24a schema:affiliation grid-institutes:grid.412191.e
131 schema:familyName Daza-Ovalle
132 schema:givenName Alberto
133 rdf:type schema:Person
134 N8e7381b4e49a4057aef01235908038e7 schema:name dimensions_id
135 schema:value pub.1149765999
136 rdf:type schema:PropertyValue
137 N90fa1cdbbeec4cc4bdc6ddbf8e6b217b rdf:first N47373ed6e9604ce5836bacc4405821b4
138 rdf:rest N9b9a0b2c4a034a34945a58e85a694bcb
139 N9b9a0b2c4a034a34945a58e85a694bcb rdf:first sg:person.0755265657.90
140 rdf:rest N03cd626da15a4c78a45eae5c6b08fbe9
141 Naf6462509d5b452e98b6bc64fd03ca24 schema:name Springer Nature - SN SciGraph project
142 rdf:type schema:Organization
143 anzsrc-for:11 schema:inDefinedTermSet anzsrc-for:
144 schema:name Medical and Health Sciences
145 rdf:type schema:DefinedTerm
146 anzsrc-for:1103 schema:inDefinedTermSet anzsrc-for:
147 schema:name Clinical Sciences
148 rdf:type schema:DefinedTerm
149 sg:journal.1094205 schema:issn 0167-594X
150 1573-7373
151 schema:name Journal of Neuro-Oncology
152 schema:publisher Springer Nature
153 rdf:type schema:Periodical
154 sg:person.01001061026.19 schema:affiliation grid-institutes:grid.412689.0
155 schema:familyName Lunsford
156 schema:givenName L. Dade
157 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01001061026.19
158 rdf:type schema:Person
159 sg:person.0755265657.90 schema:affiliation grid-institutes:grid.412689.0
160 schema:familyName Niranjan
161 schema:givenName Ajay
162 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0755265657.90
163 rdf:type schema:Person
164 sg:pub.10.1007/s002340050759 schema:sameAs https://app.dimensions.ai/details/publication/pub.1048667338
165 https://doi.org/10.1007/s002340050759
166 rdf:type schema:CreativeWork
167 sg:pub.10.1007/s00701-009-0273-x schema:sameAs https://app.dimensions.ai/details/publication/pub.1047264413
168 https://doi.org/10.1007/s00701-009-0273-x
169 rdf:type schema:CreativeWork
170 sg:pub.10.1007/s00701-020-04281-1 schema:sameAs https://app.dimensions.ai/details/publication/pub.1125400405
171 https://doi.org/10.1007/s00701-020-04281-1
172 rdf:type schema:CreativeWork
173 sg:pub.10.1007/s00701-020-04520-5 schema:sameAs https://app.dimensions.ai/details/publication/pub.1130001573
174 https://doi.org/10.1007/s00701-020-04520-5
175 rdf:type schema:CreativeWork
176 sg:pub.10.1007/s10143-005-0414-5 schema:sameAs https://app.dimensions.ai/details/publication/pub.1017663769
177 https://doi.org/10.1007/s10143-005-0414-5
178 rdf:type schema:CreativeWork
179 sg:pub.10.1007/s10143-018-1019-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1106151974
180 https://doi.org/10.1007/s10143-018-1019-0
181 rdf:type schema:CreativeWork
182 sg:pub.10.1007/s11060-015-1911-1 schema:sameAs https://app.dimensions.ai/details/publication/pub.1024659363
183 https://doi.org/10.1007/s11060-015-1911-1
184 rdf:type schema:CreativeWork
185 sg:pub.10.1007/s11060-022-03953-5 schema:sameAs https://app.dimensions.ai/details/publication/pub.1145095720
186 https://doi.org/10.1007/s11060-022-03953-5
187 rdf:type schema:CreativeWork
188 grid-institutes:grid.412191.e schema:alternateName Neurosurgery Department, Center for Research and Training in Neurosurgery (CIEN), Samaritana University Hospital, Universidad del Rosario School of Medicine, Bogota, Colombia
189 schema:name Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA
190 Neurosurgery Department, Center for Research and Training in Neurosurgery (CIEN), Samaritana University Hospital, Universidad del Rosario School of Medicine, Bogota, Colombia
191 rdf:type schema:Organization
192 grid-institutes:grid.412689.0 schema:alternateName Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA
193 schema:name Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B-400, 15213, Pittsburgh, PA, USA
194 rdf:type schema:Organization
 




Preview window. Press ESC to close (or click here)


...