“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da Universidade Federal Fluminense (RIUFF) |
Texto Completo: | http://app.uff.br/riuff/handle/1/29206 |
Resumo: | Objectives: To evaluate prospectively the feasibility of magnetic resonance neurography (MRN) in identifying the anatomical characteristics of thenar muscular branch (TMB) of the median nerve, also known as the “million dollar nerve”, in patients and controls. Methods: Thirteen patients affected by carpal tunnel syndrome (CTS) and four healthy controls had their hands scanned on a 3T MR imaging scanner for TMB visualization. Median nerve anatomical variations were classified into four groups according to the Poisel’s classification system modified by Lanz. TMB signal intensity and diameter were assessed for the diagnosis of neuropathy. Results: TMB was successfully identified in all patients and subjects by using MRN. The most suitable pulse sequences to identify and measure nerve diameter were 3D DW-PSIF and T2-FS-TSE. The axial oblique and sagittal oblique planes are complementary in demonstrating its entire course. TMB had mostly an extraligamentous course with radial side origin (93.8%, each). All patients experienced increased T2 signal intensity (P < 0.001) and thickened nerves. Mean TMB diameters were 1.27 ± 0.21 mm (range, 1.02–1.74 mm) and 0.87 ± 0.16 mm (0.73–1.08 mm) (P = 0.008) in the patient and control groups, respectively. Conclusion: MRN is a reliable imaging technique for identification and anatomical characterization of TMB in patients affected by CTS. This innovative imaging workup may therefore be included in the preoperative evaluation of patients scheduled for carpal tunnel release, especially in CTS with TMB involvement or even in isolated TMB neuropathy |
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“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings"Million dollar nerve” magnetic resonance neurography: first normal and pathological findingsCarpal tunnel syndromeMagnetic resonance imagingMedian nervePeripheral nervous system diseasesSíndrome do túnel carpalEspectroscopia de ressonância magnéticaNeuropatia periféricaCarpal tunnel syndromeMagnetic resonance imagingMedian nervePeripheral nervous system diseasesObjectives: To evaluate prospectively the feasibility of magnetic resonance neurography (MRN) in identifying the anatomical characteristics of thenar muscular branch (TMB) of the median nerve, also known as the “million dollar nerve”, in patients and controls. Methods: Thirteen patients affected by carpal tunnel syndrome (CTS) and four healthy controls had their hands scanned on a 3T MR imaging scanner for TMB visualization. Median nerve anatomical variations were classified into four groups according to the Poisel’s classification system modified by Lanz. TMB signal intensity and diameter were assessed for the diagnosis of neuropathy. Results: TMB was successfully identified in all patients and subjects by using MRN. The most suitable pulse sequences to identify and measure nerve diameter were 3D DW-PSIF and T2-FS-TSE. The axial oblique and sagittal oblique planes are complementary in demonstrating its entire course. TMB had mostly an extraligamentous course with radial side origin (93.8%, each). All patients experienced increased T2 signal intensity (P < 0.001) and thickened nerves. Mean TMB diameters were 1.27 ± 0.21 mm (range, 1.02–1.74 mm) and 0.87 ± 0.16 mm (0.73–1.08 mm) (P = 0.008) in the patient and control groups, respectively. Conclusion: MRN is a reliable imaging technique for identification and anatomical characterization of TMB in patients affected by CTS. This innovative imaging workup may therefore be included in the preoperative evaluation of patients scheduled for carpal tunnel release, especially in CTS with TMB involvement or even in isolated TMB neuropathySimObjectives: To evaluate prospectively the feasibility of magnetic resonance neurography (MRN) in identifying the anatomical characteristics of thenar muscular branch (TMB) of the median nerve, also known as the “million dollar nerve”, in patients and controls. Methods: Thirteen patients affected by carpal tunnel syndrome (CTS) and four healthy controls had their hands scanned on a 3T MR imaging scanner for TMB visualization. Median nerve anatomical variations were classified into four groups according to the Poisel’s classification system modified by Lanz. TMB signal intensity and diameter were assessed for the diagnosis of neuropathy. Results: TMB was successfully identified in all patients and subjects by using MRN. The most suitable pulse sequences to identify and measure nerve diameter were 3D DW-PSIF and T2-FS-TSE. The axial oblique and sagittal oblique planes are complementary in demonstrating its entire course. TMB had mostly an extraligamentous course with radial side origin (93.8%, each). All patients experienced increased T2 signal intensity (P < 0.001) and thickened nerves. Mean TMB diameters were 1.27 ± 0.21 mm (range, 1.02–1.74 mm) and 0.87 ± 0.16 mm (0.73–1.08 mm) (P = 0.008) in the patient and control groups, respectively. Conclusion: MRN is a reliable imaging technique for identification and anatomical characterization of TMB in patients affected by CTS. This innovative imaging workup may therefore be included in the preoperative evaluation of patients scheduled for carpal tunnel release, especially in CTS with TMB involvement or even in isolated TMB neuropathy.European Society of RadiologyNiterói, RJ2023-06-23T15:37:50Z2023-06-23T15:37:50Z2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSILVA, Jonadab dos Santos et al. "Million dollar nerve” magnetic resonance neurography: first normal and pathological findings. European Radiology, v.32, p. 1154-1162, 2022. Disponível em: https://link.springer.com/article/10.1007/s00330-021-08213-0http://app.uff.br/riuff/handle/1/29206Aluno de Graduação10.1007/s00330-021-08213-0EUROPEAN RADIOLOGY JOURNAL. Vienna: European Society of Radiology, 1991- . Mensal. ISSN: 1432-1084CC-BY-SAinfo:eu-repo/semantics/openAccessSilva, Jonadab dos SantosBarros, Larissa Fidalgo Pereira deSouza, Renan de FreitasMendonça, Silvana MachadoCosta, Flávia MartinsLandeiro, José AlbertoLopes, Fernanda Cristina RuedaAcioly, Marcus Andréengreponame:Repositório Institucional da Universidade Federal Fluminense (RIUFF)instname:Universidade Federal Fluminense (UFF)instacron:UFF2023-06-23T15:37:55Zoai:app.uff.br:1/29206Repositório InstitucionalPUBhttps://app.uff.br/oai/requestriuff@id.uff.bropendoar:21202023-06-23T15:37:55Repositório Institucional da Universidade Federal Fluminense (RIUFF) - Universidade Federal Fluminense (UFF)false |
dc.title.none.fl_str_mv |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings "Million dollar nerve” magnetic resonance neurography: first normal and pathological findings |
title |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings |
spellingShingle |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings Silva, Jonadab dos Santos Carpal tunnel syndrome Magnetic resonance imaging Median nerve Peripheral nervous system diseases Síndrome do túnel carpal Espectroscopia de ressonância magnética Neuropatia periférica Carpal tunnel syndrome Magnetic resonance imaging Median nerve Peripheral nervous system diseases |
title_short |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings |
title_full |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings |
title_fullStr |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings |
title_full_unstemmed |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings |
title_sort |
“Million dollar nerve” magnetic resonance neurography: first normal and pathological findings |
author |
Silva, Jonadab dos Santos |
author_facet |
Silva, Jonadab dos Santos Barros, Larissa Fidalgo Pereira de Souza, Renan de Freitas Mendonça, Silvana Machado Costa, Flávia Martins Landeiro, José Alberto Lopes, Fernanda Cristina Rueda Acioly, Marcus André |
author_role |
author |
author2 |
Barros, Larissa Fidalgo Pereira de Souza, Renan de Freitas Mendonça, Silvana Machado Costa, Flávia Martins Landeiro, José Alberto Lopes, Fernanda Cristina Rueda Acioly, Marcus André |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Jonadab dos Santos Barros, Larissa Fidalgo Pereira de Souza, Renan de Freitas Mendonça, Silvana Machado Costa, Flávia Martins Landeiro, José Alberto Lopes, Fernanda Cristina Rueda Acioly, Marcus André |
dc.subject.por.fl_str_mv |
Carpal tunnel syndrome Magnetic resonance imaging Median nerve Peripheral nervous system diseases Síndrome do túnel carpal Espectroscopia de ressonância magnética Neuropatia periférica Carpal tunnel syndrome Magnetic resonance imaging Median nerve Peripheral nervous system diseases |
topic |
Carpal tunnel syndrome Magnetic resonance imaging Median nerve Peripheral nervous system diseases Síndrome do túnel carpal Espectroscopia de ressonância magnética Neuropatia periférica Carpal tunnel syndrome Magnetic resonance imaging Median nerve Peripheral nervous system diseases |
description |
Objectives: To evaluate prospectively the feasibility of magnetic resonance neurography (MRN) in identifying the anatomical characteristics of thenar muscular branch (TMB) of the median nerve, also known as the “million dollar nerve”, in patients and controls. Methods: Thirteen patients affected by carpal tunnel syndrome (CTS) and four healthy controls had their hands scanned on a 3T MR imaging scanner for TMB visualization. Median nerve anatomical variations were classified into four groups according to the Poisel’s classification system modified by Lanz. TMB signal intensity and diameter were assessed for the diagnosis of neuropathy. Results: TMB was successfully identified in all patients and subjects by using MRN. The most suitable pulse sequences to identify and measure nerve diameter were 3D DW-PSIF and T2-FS-TSE. The axial oblique and sagittal oblique planes are complementary in demonstrating its entire course. TMB had mostly an extraligamentous course with radial side origin (93.8%, each). All patients experienced increased T2 signal intensity (P < 0.001) and thickened nerves. Mean TMB diameters were 1.27 ± 0.21 mm (range, 1.02–1.74 mm) and 0.87 ± 0.16 mm (0.73–1.08 mm) (P = 0.008) in the patient and control groups, respectively. Conclusion: MRN is a reliable imaging technique for identification and anatomical characterization of TMB in patients affected by CTS. This innovative imaging workup may therefore be included in the preoperative evaluation of patients scheduled for carpal tunnel release, especially in CTS with TMB involvement or even in isolated TMB neuropathy |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022 2023-06-23T15:37:50Z 2023-06-23T15:37:50Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SILVA, Jonadab dos Santos et al. "Million dollar nerve” magnetic resonance neurography: first normal and pathological findings. European Radiology, v.32, p. 1154-1162, 2022. Disponível em: https://link.springer.com/article/10.1007/s00330-021-08213-0 http://app.uff.br/riuff/handle/1/29206 Aluno de Graduação 10.1007/s00330-021-08213-0 |
identifier_str_mv |
SILVA, Jonadab dos Santos et al. "Million dollar nerve” magnetic resonance neurography: first normal and pathological findings. European Radiology, v.32, p. 1154-1162, 2022. Disponível em: https://link.springer.com/article/10.1007/s00330-021-08213-0 Aluno de Graduação 10.1007/s00330-021-08213-0 |
url |
http://app.uff.br/riuff/handle/1/29206 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
EUROPEAN RADIOLOGY JOURNAL. Vienna: European Society of Radiology, 1991- . Mensal. ISSN: 1432-1084 |
dc.rights.driver.fl_str_mv |
CC-BY-SA info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
CC-BY-SA |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
European Society of Radiology Niterói, RJ |
publisher.none.fl_str_mv |
European Society of Radiology Niterói, RJ |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da Universidade Federal Fluminense (RIUFF) instname:Universidade Federal Fluminense (UFF) instacron:UFF |
instname_str |
Universidade Federal Fluminense (UFF) |
instacron_str |
UFF |
institution |
UFF |
reponame_str |
Repositório Institucional da Universidade Federal Fluminense (RIUFF) |
collection |
Repositório Institucional da Universidade Federal Fluminense (RIUFF) |
repository.name.fl_str_mv |
Repositório Institucional da Universidade Federal Fluminense (RIUFF) - Universidade Federal Fluminense (UFF) |
repository.mail.fl_str_mv |
riuff@id.uff.br |
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1797044706754953216 |