Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency

Detalhes bibliográficos
Autor(a) principal: Lima Neto, Arlindo Cardoso
Data de Publicação: 2020
Outros Autores: Bor-Seng-Shu, Edson, Oliveira, Marcelo de Lima, Soares, Alberto Macedo, Topciu, Flávia Renata, Bittar, Roseli Saraiva Moreira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Clinics
Texto Completo: https://www.revistas.usp.br/clinics/article/view/165815
Resumo: OBJECTIVE: To evaluate the findings of magnetic resonance angiography (MRA) and transcranial Doppler ultrasound (TCD) in patients with a clinical diagnosis of vertebrobasilar insufficiency (VBI). METHOD: From our outpatient neurotology clinic, we selected patients (using the criteria proposed by Grad and Baloh) with a clinical diagnosis of VBI. We excluded patients with any definite cause for vestibular symptoms, a noncontrolled metabolic disease or any contraindication to MRA or TCD. The patients in the study group were sex- and age-matched with subjects who did not have vestibular symptoms (control group). Our final group of patients included 24 patients (study, n=12; control, n=12). RESULTS: The MRA results did not demonstrate significant differences in the findings between our study and control groups. TCD demonstrated that the systolic pulse velocity of the right middle cerebral artery, end diastolic velocity of the basilar artery, pulsatility index (PI) of the left middle cerebral artery, PI of the right middle cerebral artery, and PI of the basilar artery were significantly higher in the study group than in the control group, suggesting abnormalities affecting the microcirculation of patients with a clinical diagnosis of VBI compared with controls. CONCLUSION: MRA failed to reveal abnormalities in patients with a clinical diagnosis of VBI compared with controls. The PI of the basilar artery, measured using TCD, demonstrated high sensitivity (91%) and specificity (91%) for detecting clinically diagnosed VBI.
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spelling Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiencyVascular VertigoArteriographyTranscranial Doppler UltrasoundMagnetic Resonance AngiographyDiagnosisVertebrobasilar InsufficiencyOBJECTIVE: To evaluate the findings of magnetic resonance angiography (MRA) and transcranial Doppler ultrasound (TCD) in patients with a clinical diagnosis of vertebrobasilar insufficiency (VBI). METHOD: From our outpatient neurotology clinic, we selected patients (using the criteria proposed by Grad and Baloh) with a clinical diagnosis of VBI. We excluded patients with any definite cause for vestibular symptoms, a noncontrolled metabolic disease or any contraindication to MRA or TCD. The patients in the study group were sex- and age-matched with subjects who did not have vestibular symptoms (control group). Our final group of patients included 24 patients (study, n=12; control, n=12). RESULTS: The MRA results did not demonstrate significant differences in the findings between our study and control groups. TCD demonstrated that the systolic pulse velocity of the right middle cerebral artery, end diastolic velocity of the basilar artery, pulsatility index (PI) of the left middle cerebral artery, PI of the right middle cerebral artery, and PI of the basilar artery were significantly higher in the study group than in the control group, suggesting abnormalities affecting the microcirculation of patients with a clinical diagnosis of VBI compared with controls. CONCLUSION: MRA failed to reveal abnormalities in patients with a clinical diagnosis of VBI compared with controls. The PI of the basilar artery, measured using TCD, demonstrated high sensitivity (91%) and specificity (91%) for detecting clinically diagnosed VBI.Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo2020-01-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/xmlhttps://www.revistas.usp.br/clinics/article/view/16581510.6061/clinics/2020/e1212Clinics; Vol. 75 (2020); e1212Clinics; v. 75 (2020); e1212Clinics; Vol. 75 (2020); e12121980-53221807-5932reponame:Clinicsinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/clinics/article/view/165815/158720https://www.revistas.usp.br/clinics/article/view/165815/158721Copyright (c) 2020 Clinicsinfo:eu-repo/semantics/openAccessLima Neto, Arlindo CardosoBor-Seng-Shu, EdsonOliveira, Marcelo de LimaSoares, Alberto MacedoTopciu, Flávia RenataBittar, Roseli Saraiva Moreira2021-10-23T11:05:25Zoai:revistas.usp.br:article/165815Revistahttps://www.revistas.usp.br/clinicsPUBhttps://www.revistas.usp.br/clinics/oai||clinics@hc.fm.usp.br1980-53221807-5932opendoar:2021-10-23T11:05:25Clinics - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
title Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
spellingShingle Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
Lima Neto, Arlindo Cardoso
Vascular Vertigo
Arteriography
Transcranial Doppler Ultrasound
Magnetic Resonance Angiography
Diagnosis
Vertebrobasilar Insufficiency
title_short Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
title_full Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
title_fullStr Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
title_full_unstemmed Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
title_sort Magnetic resonance angiography and transcranial Doppler ultrasound findings in patients with a clinical diagnosis of vertebrobasilar insufficiency
author Lima Neto, Arlindo Cardoso
author_facet Lima Neto, Arlindo Cardoso
Bor-Seng-Shu, Edson
Oliveira, Marcelo de Lima
Soares, Alberto Macedo
Topciu, Flávia Renata
Bittar, Roseli Saraiva Moreira
author_role author
author2 Bor-Seng-Shu, Edson
Oliveira, Marcelo de Lima
Soares, Alberto Macedo
Topciu, Flávia Renata
Bittar, Roseli Saraiva Moreira
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Lima Neto, Arlindo Cardoso
Bor-Seng-Shu, Edson
Oliveira, Marcelo de Lima
Soares, Alberto Macedo
Topciu, Flávia Renata
Bittar, Roseli Saraiva Moreira
dc.subject.por.fl_str_mv Vascular Vertigo
Arteriography
Transcranial Doppler Ultrasound
Magnetic Resonance Angiography
Diagnosis
Vertebrobasilar Insufficiency
topic Vascular Vertigo
Arteriography
Transcranial Doppler Ultrasound
Magnetic Resonance Angiography
Diagnosis
Vertebrobasilar Insufficiency
description OBJECTIVE: To evaluate the findings of magnetic resonance angiography (MRA) and transcranial Doppler ultrasound (TCD) in patients with a clinical diagnosis of vertebrobasilar insufficiency (VBI). METHOD: From our outpatient neurotology clinic, we selected patients (using the criteria proposed by Grad and Baloh) with a clinical diagnosis of VBI. We excluded patients with any definite cause for vestibular symptoms, a noncontrolled metabolic disease or any contraindication to MRA or TCD. The patients in the study group were sex- and age-matched with subjects who did not have vestibular symptoms (control group). Our final group of patients included 24 patients (study, n=12; control, n=12). RESULTS: The MRA results did not demonstrate significant differences in the findings between our study and control groups. TCD demonstrated that the systolic pulse velocity of the right middle cerebral artery, end diastolic velocity of the basilar artery, pulsatility index (PI) of the left middle cerebral artery, PI of the right middle cerebral artery, and PI of the basilar artery were significantly higher in the study group than in the control group, suggesting abnormalities affecting the microcirculation of patients with a clinical diagnosis of VBI compared with controls. CONCLUSION: MRA failed to reveal abnormalities in patients with a clinical diagnosis of VBI compared with controls. The PI of the basilar artery, measured using TCD, demonstrated high sensitivity (91%) and specificity (91%) for detecting clinically diagnosed VBI.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-20
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/clinics/article/view/165815
10.6061/clinics/2020/e1212
url https://www.revistas.usp.br/clinics/article/view/165815
identifier_str_mv 10.6061/clinics/2020/e1212
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/clinics/article/view/165815/158720
https://www.revistas.usp.br/clinics/article/view/165815/158721
dc.rights.driver.fl_str_mv Copyright (c) 2020 Clinics
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Clinics
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/xml
dc.publisher.none.fl_str_mv Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo
publisher.none.fl_str_mv Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo
dc.source.none.fl_str_mv Clinics; Vol. 75 (2020); e1212
Clinics; v. 75 (2020); e1212
Clinics; Vol. 75 (2020); e1212
1980-5322
1807-5932
reponame:Clinics
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Clinics
collection Clinics
repository.name.fl_str_mv Clinics - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||clinics@hc.fm.usp.br
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