Management of traumatic superficial palmar arch pseudoaneurysm: a therapeutic challenge.

Pseudoaneurysm of the palmar arch is a rare entity. Diagnosis is dependent on high clinical suspicion. We present a case referred to the emergency department, with a history of glass penetrating trauma to the palmar surface with a pulsatile mass and jet bleeding. Doppler ultrasound evidenced a partially thrombosed pseudoaneurysm. A CT angiography examination showed a saccular formation arising from the superficial palmar arch. A conventional surgical approach was indicated. A clinical suspicion must be ventured to arrive at the correct diagnosis. Imaging modalities are needed to identify the pseudoaneurysm and plan the treatment course. Nonetheless, the sequence of diagnosis is individual, because further evaluation with different imaging methods may not change the rationale for the intervention. In our experience, conventional surgical removal is preferable, due to its safety and well-established outcomes.

O pseudoaneurisma do arco palmar é uma entidade rara, cujo diagnóstico depende de alta suspeição clínica. Apresentamos o caso de um paciente encaminhado ao pronto-socorro com história de traumatismo penetrante por vidro na face palmar, com massa pulsátil e sangramento em jato. A ultrassonografia com Doppler evidenciou pseudoaneurisma parcialmente trombosado, e a angiotomografia demonstrou formação sacular originada do arco palmar superficial. Uma abordagem cirúrgica convencional foi indicada. Para prosseguir com o diagnóstico correto, essa suspeita clínica deve ser aventada. Modalidades de imagem são necessárias para identificar o pseudoaneurisma e planejar o curso do tratamento. No entanto, a sequência diagnóstica é individual, pois uma avaliação mais aprofundada, com diferentes métodos de imagem, pode não alterar o racional da intervenção. Em nossa experiência, a remoção cirúrgica convencional é preferível, visto sua segurança e seus resultados bem estabelecidos.

Association between the degree of iliac venous outflow obstruction by intravascular ultrasound and lower limbs venous reflux

OBJECTIVE: This study aims to evaluate the association between the degree of iliac venous outflow obstruction (IVOO) identified by Intravascular Ultrasound (IVUS) and venous reflux presentation in lower limbs on Duplex Ultrasound (DU). METHODS: Patients with bilateral chronic venous insufficiency, CEAP C3-6 (Clinical-Etiology-Anatomy-Pathophysiology classification), and with Visual Analogic Scale score for pain > 5, underwent DU for reflux evaluation: deep venous system (reflux ≥ 1 s); superficial system, great saphenous vein (GSV) and small saphenous vein (SSV) (reflux ≥ 0.5 s); perforator system (reflux ≥ 0.35s). All patients underwent IVUS in the iliac venous territory. The area of the impaired venous segments was categorized as obstructions< 50% (Cat. 1); 50-79% (Cat. 2), and ≥ 80% (Cat. 3). Venous clinical severity scale (VCSS) and reflux multisegment score (RMS) were assessed. RESULTS: 51 patients (n=102 limbs; 50.53 ± 14.5 years, 6 men) were included. The predominant clinical severity CEAP class was C3 in 54/102 (52.9%) limbs. VCSS mean was 14.3 ± 6.7. Severe RMS (≥ 3) was registered in 63,4% of the limbs. In 51/102 limbs (50%) presented cat. 1, 27/102 (26.5%) cat. 2, and 24/102 (23.5%) cat. 3. Previous DVT was associated with critical obstruction (OR 3.65; 95% CI: 1.29-10.38; p=0.015). Superficial and perforator venous systems had no association with the degree of iliac obstruction. Deep venous reflux (DVR) had a significant association with significative IVOO (obstruction ≥ 50%) (OR 6.44; 95% CI: 2.19-18.93; p=0.001) and critical IVOO (obstruction ≥ 80%) (OR 4.57; 95% CI: 1.70-12.27; p=0.003), and significant linear association with IVOO degree and reflux in femoral veins (p<0.001) and popliteal vein (p=0.008). Significant lesions had 5.76 (95% CI: 2.46-13.50; p<0.001) more odds of happening in the left limb. After a multivariate analysis, DVR remained as predictor for significant and critical obstruction (p<0.003, p< 0.012; respectively). Left limb and previous DVT remained as predictors for IVOO ≥50% and IVOO≥ 80% (p<0.001, p=0.043; respectively) CONCLUSIONS: There is a significant linear association between the degree of iliac venous outflow obstruction and reflux in the deep venous system on DU. Limbs with DVR, severe RMS, loss of respiratory variation on DU, and previous DVT, were more likely to be affected by IVOO ≥ 50%, especially with the left leg involvement.

Management of traumatic superficial palmar arch pseudoaneurysm: a therapeutic challenge / Manejo de pseudoaneurisma do arco palmar superficial traumático: desafio terapêutico

Abstract Pseudoaneurysm of the palmar arch is a rare entity. Diagnosis is dependent on high clinical suspicion. We present a case referred to the emergency department, with a history of glass penetrating trauma to the palmar surface with a pulsatile mass and jet bleeding. Doppler ultrasound evidenced a partially thrombosed pseudoaneurysm. A CT angiography examination showed a saccular formation arising from the superficial palmar arch. A conventional surgical approach was indicated. A clinical suspicion must be ventured to arrive at the correct diagnosis. Imaging modalities are needed to identify the pseudoaneurysm and plan the treatment course. Nonetheless, the sequence of diagnosis is individual, because further evaluation with different imaging methods may not change the rationale for the intervention. In our experience, conventional surgical removal is preferable, due to its safety and well-established outcomes.

Resumo O pseudoaneurisma do arco palmar é uma entidade rara, cujo diagnóstico depende de alta suspeição clínica. Apresentamos o caso de um paciente encaminhado ao pronto-socorro com história de traumatismo penetrante por vidro na face palmar, com massa pulsátil e sangramento em jato. A ultrassonografia com Doppler evidenciou pseudoaneurisma parcialmente trombosado, e a angiotomografia demonstrou formação sacular originada do arco palmar superficial. Uma abordagem cirúrgica convencional foi indicada. Para prosseguir com o diagnóstico correto, essa suspeita clínica deve ser aventada. Modalidades de imagem são necessárias para identificar o pseudoaneurisma e planejar o curso do tratamento. No entanto, a sequência diagnóstica é individual, pois uma avaliação mais aprofundada, com diferentes métodos de imagem, pode não alterar o racional da intervenção. Em nossa experiência, a remoção cirúrgica convencional é preferível, visto sua segurança e seus resultados bem estabelecidos.

Budd-Chiari syndrome due to hepatic venous web outflow obstruction: percutaneous treatment with balloon angioplasty.

The Budd-Chiari syndrome is a rare hepatic venous disease. It is more prevalent in young adults and may present in acute, subacute, or chronic forms, causing portal hypertension. Traditional treatment consists of thrombolysis techniques and transjugular intrahepatic portosystemic shunt, as a bridge to liver transplantation. Recently, use of balloon or stent angioplasty techniques has been reported for treatment of this condition. In this article, we report and discuss a case of BCS by membranous obstruction in the hepatic vein outflow tract, with middle hepatic vein thrombosis, in a 24-year-old patient. The treatment chosen and employed was transjugular balloon angioplasty, which achieved satisfactory results and good clinical evolution.

Remodeling technique using T-stenting and coils to treat complex renal aneurysm.

Renal artery aneurysm is a rare condition that is being diagnosed with increasing frequency because of wider use of angiotomography. We describe a case of complex type II renal artery aneurysm in a patient with systemic arterial hypertension and non-dialysis chronic kidney disease. The treatment performed was endovascular repair using the remodeling technique with T-stenting and coils to preserve the renal arterial branches, obtaining satisfactory arteriographic results and good clinical outcomes.

Endovascular treatment of aortic saccular aneurysms associated with Adamantiades-Behçet disease.

Adamantiades-Behçet disease is a multisystemic disorder that classically presents with oral and genital ulcers and ocular involvement, with vascular involvement in up to 38% of cases. Aortic involvement is one of the most serious manifestations and is associated with high mortality rates, occurring in 1.5 to 2.7% of cases. We report a case of a saccular abdominal aorta aneurysm in a 49-year-old male patient with complicated Adamantiades-Behçet disease that was treated with endovascular repair.

Inferior pancreaticoduodenal artery aneurysm: endovascular approach.

Aneurysms of the pancreaticoduodenal arteries are a rare condition. In the majority of cases, diagnosis is made in emergency situations due to complications such as rupture, which is associated with high mortality rates (21-26%). Embolization of the aneurysm sac is the treatment of choice, because of its high efficacy and lower mortality. This article presents and discusses a case of inferior pancreaticoduodenal artery aneurysm that was diagnosed during investigation of gastrointestinal symptoms. The treatment provided was microcoil embolization, with complete exclusion of the aneurysm and a good clinical course.

Aneurisma de artéria pancreatoduodenal inferior: tratamento endovascular / Inferior pancreaticoduodenal artery aneurysm: endovascular approach

Resumo Os aneurismas das artérias pancreatoduodenais constituem uma afecção rara. Seu diagnóstico é realizado, na maioria das vezes, em situações de emergência por complicações como a rotura, a qual está associada a altas taxas de mortalidade (21-26%). A embolização do saco aneurismático é o tratamento de escolha, devido à sua alta efetividade e menor mortalidade. Neste artigo, é apresentado e discutido um caso de aneurisma de artéria pancreatoduodenal inferior com diagnóstico obtido durante investigação de sintomas gastrointestinais. O tratamento instituído foi a embolização com micromolas, com completa exclusão do aneurisma e boa evolução clínica.

Abstract Aneurysms of the pancreaticoduodenal arteries are a rare condition. In the majority of cases, diagnosis is made in emergency situations due to complications such as rupture, which is associated with high mortality rates (21-26%). Embolization of the aneurysm sac is the treatment of choice, because of its high efficacy and lower mortality. This article presents and discusses a case of inferior pancreaticoduodenal artery aneurysm that was diagnosed during investigation of gastrointestinal symptoms. The treatment provided was microcoil embolization, with complete exclusion of the aneurysm and a good clinical course.

Tratamento endovascular de aneurisma sacular aórtico associado à doença de Adamantiades-Behçet / Endovascular treatment of aortic saccular aneurysms associated with Adamantiades-Behçet disease

Resumo A doença de Adamantiades-Behçet é uma desordem multissistêmica que se apresenta classicamente com úlceras orais e genitais e envolvimento ocular, podendo o acometimento vascular ocorrer em até 38% dos casos. O envolvimento aórtico é uma das manifestações mais severas e está associado a altas taxas de mortalidade, ocorrendo em 1,5 a 2,7% dos casos. Relatamos um caso de aneurisma sacular de aorta abdominal em um paciente de 49 anos com doença de Adamantiades-Behçet complicada, tratada por correção endovascular.

Abstract Adamantiades-Behçet disease is a multisystemic disorder that classically presents with oral and genital ulcers and ocular involvement, with vascular involvement in up to 38% of cases. Aortic involvement is one of the most serious manifestations and is associated with high mortality rates, occurring in 1.5 to 2.7% of cases. We report a case of a saccular abdominal aorta aneurysm in a 49-year-old male patient with complicated Adamantiades-Behçet disease that was treated with endovascular repair.

Técnica de remodelamento com uso de stents em T e molas para tratamento de aneurisma renal complexo / Remodeling technique using T-stenting and coils to treat complex renal aneurysm

Resumo O aneurisma da artéria renal é uma condição rara, que vem sendo cada vez mais diagnosticada devido ao uso mais amplo da angiotomografia. Descrevemos um caso de aneurisma da artéria renal tipo II complexo em uma paciente com hipertensão arterial sistêmica e doença renal crônica não dialítica. O tratamento estabelecido foi o reparo endovascular através da combinação da técnica de remodelamento com stents em T e molas, para a preservação dos ramos arteriais renais. Foram obtidos resultados arteriográficos satisfatórios e boa evolução clínica.

Abstract Renal artery aneurysm is a rare condition that is being diagnosed with increasing frequency because of wider use of angiotomography. We describe a case of complex type II renal artery aneurysm in a patient with systemic arterial hypertension and non-dialysis chronic kidney disease. The treatment performed was endovascular repair using the remodeling technique with T-stenting and coils to preserve the renal arterial branches, obtaining satisfactory arteriographic results and good clinical outcomes.

Síndrome de Budd-Chiari por obstrução da via de saída da veia hepática por membrana: tratamento percutâneo por angioplastia com balão / Budd-Chiari syndrome due to hepatic venous web outflow obstruction: percutaneous treatment with balloon angioplasty

Resumo A síndrome de Budd-Chiari é uma doença venosa hepática rara, mais incidente em adultos jovens, podendo se apresentar na forma aguda, subaguda ou crônica, o que resulta em hipertensão portal. O tratamento tradicional consiste em técnicas de trombólise e de shunts portossistêmicos intra-hepáticos, como pontes para o transplante hepático. Recentemente, técnicas de angioplastia com balão ou stents têm sido relatadas para o tratamento dessa afecção. Neste artigo, é relatado e discutido um caso de síndrome de Budd-Chiari por obstrução membranosa da via de saída da veia supra-hepática com trombose da veia hepática média em uma paciente de 24 anos. O tratamento estabelecido foi a angioplastia transjugular com balão, que obteve resultados satisfatórios e boa evolução clínica.

Abstract The Budd-Chiari syndrome is a rare hepatic venous disease. It is more prevalent in young adults and may present in acute, subacute, or chronic forms, causing portal hypertension. Traditional treatment consists of thrombolysis techniques and transjugular intrahepatic portosystemic shunt, as a bridge to liver transplantation. Recently, use of balloon or stent angioplasty techniques has been reported for treatment of this condition. In this article, we report and discuss a case of BCS by membranous obstruction in the hepatic vein outflow tract, with middle hepatic vein thrombosis, in a 24-year-old patient. The treatment chosen and employed was transjugular balloon angioplasty, which achieved satisfactory results and good clinical evolution.

Endovascular treatment of uterine myomatosis: a systematic review.

Uterine Artery Embolization (UAE) is a noninvasive alternative to open surgery for treatment of uterine myomatosis. This study aims to analyze the efficacy and safety of UAE in these cases. A systematic review was carried out of studies available on the Medline (via PubMed) and the LILACS and PEDro (via the Biblioteca Virtual em Saúde) databases. The searches found 817 studies, 7 of which were selected according to the eligibility criteria (analytical, longitudinal, retrospective, or prospective studies), with a total of 367 patients studied. The variables analyzed and the characteristics of the studies included were collated and input to a database. Rates of volume reduction of the uterus and the dominant myoma were 44.1% and 56.3%, respectively. Mean rate of complete infarction of the dominant myoma was 88.6% (82-100%). The mean number of complications observed was 15±8.6 cases, most of which were classified as minor, and no deaths were recorded. The mean number of re-interventions in absolute values was 12.2±15.5 cases. Therefore, in the literature analyzed, uterine artery embolization is an effective procedure with a low rate of complications for treatment of uterine leiomyomatosis.

Traumatic pseudoaneurysm in brachial artery after removal of a subdermal contraceptive implant.

The frequency of invasive therapeutic procedures has increased as medicine evolves, and the number of complications related to them has increased as a consequence. Subdermal contraceptive implants (SCI) offer benefits for female contraception, but implant and removal are associated with a complication rate of around 3%. In this article, we report and discuss a case of traumatic brachial artery pseudoaneurysm after an attempt to remove an SCI, complicated by compression of the median nerve.

Tratamento endovascular da miomatose uterina: uma revisão sistemática / Endovascular treatment of uterine myomatosis: a systematic review

Resumo A embolização da artéria uterina (EAU) é um tratamento pouco invasivo e alternativo à cirurgia aberta no tratamento de miomatose uterina. Este estudo visa analisar a eficácia e a segurança da EAU nesses casos. Para isso, foi realizada uma revisão sistemática a partir de estudos disponíveis nas bases de dados MEDLINE/PubMed, LILACS e PEDro, via Biblioteca Virtual em Saúde. Foram encontrados 817 trabalhos; destes, 7 foram selecionados pelos critérios de elegibilidade (estudos analíticos, de corte longitudinal, retrospectivos ou prospectivos), totalizando 367 pacientes no estudo. As variáveis estudadas, bem como as características dos estudos incluídos, foram coletadas e armazenadas em um banco de dados. As taxas de redução do volume uterino e do mioma dominante foram 44,1% e 56,3%, respectivamente. A média do infarto completo do mioma dominante foi de 88,6% (82-100%). Quanto às complicações, a média obtida foi de 15±8,6 casos, sendo a maioria destas classificadas como menores, e nenhum óbito foi registrado. A média de reabordagem em valores absolutos foi de 12,2±15,5 casos. Portanto, a embolização da artéria uterina é um procedimento eficaz e com baixa taxa de complicações para o tratamento da leiomiomatose uterina na literatura analisada.

Abstract Uterine Artery Embolization (UAE) is a noninvasive alternative to open surgery for treatment of uterine myomatosis. This study aims to analyze the efficacy and safety of UAE in these cases. A systematic review was carried out of studies available on the Medline (via PubMed) and the LILACS and PEDro (via the Biblioteca Virtual em Saúde) databases. The searches found 817 studies, 7 of which were selected according to the eligibility criteria (analytical, longitudinal, retrospective, or prospective studies), with a total of 367 patients studied. The variables analyzed and the characteristics of the studies included were collated and input to a database. Rates of volume reduction of the uterus and the dominant myoma were 44.1% and 56.3%, respectively. Mean rate of complete infarction of the dominant myoma was 88.6% (82-100%). The mean number of complications observed was 15±8.6 cases, most of which were classified as minor, and no deaths were recorded. The mean number of re-interventions in absolute values was 12.2±15.5 cases. Therefore, in the literature analyzed, uterine artery embolization is an effective procedure with a low rate of complications for treatment of uterine leiomyomatosis.

Pseudoaneurisma traumático em artéria braquial após retirada de implante contraceptivo subdérmico / Traumatic pseudoaneurysm in brachial artery after removal of a subdermal contraceptive implant

Resumo Os procedimentos terapêuticos invasivos têm aumentado frequentemente com a evolução da medicina, consequentemente aumentando o número de complicações decorrentes deles. O dispositivo contraceptivo subdérmico (DCS) tem um benefício para a contracepção feminina, mas o implante e a retirada apresentam uma taxa de complicações em torno de 3%. Neste artigo, relatamos e discutimos um caso de pseudoaneurisma traumático da artéria braquial após tentativa de retirada do implante, complicada com a compressão do nervo mediano.

Abstract The frequency of invasive therapeutic procedures has increased as medicine evolves, and the number of complications related to them has increased as a consequence. Subdermal contraceptive implants (SCI) offer benefits for female contraception, but implant and removal are associated with a complication rate of around 3%. In this article, we report and discuss a case of traumatic brachial artery pseudoaneurysm after an attempt to remove an SCI, complicated by compression of the median nerve.

Criteria for detecting significant chronic iliacvenous obstructions with duplex ultrasound

The purpose of this study was to determine thesonographic criteria for diagnosis of iliac venous out flow obstruction by assessing the correlation of this method with intravascular ultrasound (IVUS) in patients with advanced chronic venous insufficiency (CVI). The evaluation included 15 patients (30 limbs; age,49.4 % 10.7 years; 1 man) with initial CVI symptoms (Clinicalclass, Etiology, Anatomy, and Pathophysiology [CEAP]classification, CEAP1-2) in group I (GI) and 51 patients (102limbs; age, 50.53 % 14.5 years; 6 men) with advanced CVI symptoms (CEAP3-6) in group II (GII). Patients from bothgroups were matched by gender, age, and race. The Venous Clinical Severity Score was considered. All patients underwent structured interviews and duplex ultrasound (DU) examination, measuring the flow phasicity, the femoral volume flowsand velocities, and the velocity and obstruction ratios in the iliac vein. The reflux multisegment score was analyzed in bothgroups. Three independent observers evaluated individuals inGI. GII patients were submitted to IVUS, in which the area ofthe impaired venous segments was obtained and comparedwith the DU results and then grouped into three categories: obstructions <50%, obstructions between 50% and 79%, andobstructions...

Resultados do uso de stents de nitinol superflexíveis na artéria femoral superficial / Outcomes after implantation of superflexible nitinol stents in the superficial femoral artery

As intervenções endovasculares na artéria femoral superficial para o tratamento da doença arterial oclusiva periférica têm crescido nas últimas décadas. A primeira e a segunda geração de stents na artériafemoral superficial falharam em demonstrar a melhora da perviedade do vaso tratado, devido às altas taxas defratura. O objetivo deste estudo foi avaliar os desfechos clínicos no curto prazo com o uso de stents de nitinolsuperflexíveis de terceira geração no tratamento de lesões ateroscleróticas na artéria femoral superficial. Métodos: Trata-se de um estudo retrospectivo, realizado em único centro, no período de junho de 2013 a maio de 2014. Um total de 27 pacientes foi submetido à angioplastia com stents de nitinol superflexíveis de terceira geração em lesões ateroscleróticas da arterial femoral superficial. Resultados: A média de idades foi de 68 ± 12 anos, 55,6% eram do sexo feminino e 74,1%, diabéticos. Os pacientes foram classificados em TASC B e C em 77,7% dos casos. O sucesso técnico foi de 100%. Houve aumento do índice tornozelo-braquial de 0,35 ± 0,1 pré-intervenção para 0,75 ± 0,2 na alta hospitalar. O seguimento médio dos pacientes foi de 6,7 ± 2,3 meses. A taxa de patência primária foi de 96,3%. A taxa de salvamento de membro foi de 100%. Não ocorreram fraturas de stent documentadas por raios X. Conclusões: A angioplastia com uso de stent de nitinol superflexível de terceira geração demonstrou ser efetiva no tratamento das lesões ateroscleróricas da artéria femoral superficial...

Endovascular interventions in the superficial femoral artery for the treatment of peripheral arterial occlusive disease have increased over the last decades. The first- and second-generation stents in the superficial femoral artery have failed to demonstrate improved patency of the treated vessel due to high fracture rates. The aim of this study was to evaluate the clinical, short-term outcomes of using third-generation superflexible nitinol stents in the treatment of atherosclerotic lesions in the superficial femoral artery. Methods: This was a retrospective study carried out in a single center, from June 2013 to May 2014. A total of 27 patients underwent angioplasty with third-generation superflexible nitinol stents in atherosclerotic lesions of the superficial femoral artery. Results: The mean age was 68 ± 12 years, 55.6% were females, and 74.1% were diabetics. Patients were classified as TASC B and C in 77.7% of cases. Technical success was 100%. There was an increase in the anklebrachial index from 0.35 ± 0.1 before the intervention to 0.75 ± 0.2 at hospital discharge. The mean followupof patients was 6.7 ± 2.3 months. The primary patency rate was 96.3%. The limb salvage rate was 100%. There were no stent fractures documented by X-rays. Conclusions: Angioplasty with third-generation superflexible nitinol stent placement was shown to beeffective in the treatment of atherosclerotic lesions of the superficial femoral artery...

Abordagem endovascular de paciente com fibrodisplasia de artéria renal bilateral associada a volumoso aneurisma renal / Endovascular approach of a patient with bilateral renal artery fibrodysplasia associated with a massive renal aneurysm

A fibrodisplasia muscular renal é de etiologia desconhecida, de origem não inflamatória e não aterosclerótica, estando associada ao desenvolvimento de estenoses e de aneurismas. Relatamos um caso de fibrodisplasia muscular renal bilateral associada a aneurisma volumoso de artéria renal tratado com angioplastia com balão e stent multicamadas.

Renal artery fibromuscular dysplasia is a condition of unknown etiology, with non-inflammatory, nonatheroscleroticorigin, associated to the development of stenosis and aneurysms. The authors report a case of bilateral renal artery fibromuscular dysplasia associated with a large renal artery aneurysm, treatedwith balloon angioplasty and a multilayer stent.

Doppler ecografia das artérias carótidas: critérios de velocidade validados pela arteriografia / Doppler Ultrasonography of Carotid Arteries: Velocity Criteria Validated by Arteriography

Introdução: Doppler Ecografia (DE) é largamente utilizada no diagnóstico das estenoses carotídeas. Em 2003, a Sociedade Americana de Radiologia divulgou um consenso propondo critérios para graduação das estenoses da Artéria Carótida Interna (ACI). Em 2009, um grupo do Reino Unido apresentou recomendações para realização da DE das artérias carótidas.Objetivo: Avaliar a acurácia dos critérios velocimétricos utilizados na graduação das estenoses da artéria carótidainterna por Doppler Ecografia comparados à arteriografia.Métodos: Em 73 pacientes (146 ACI), foram avaliados: Pico de Velocidade Sistólica (PVS), Velocidade DiastólicaFinal (VDF) da ACI e razão PVS ACI/Artéria Carótida Comum (ACC), para detecção de estenoses < 50%, 50% - 69% (PVS: 125 - 230 cm/s), 70% - 99% (PVS > 230 cm/s). A correlação entre DE e arteriografia foi feita pelo método de Spearman e p < 0,05 considerado estatisticamente significativo. Resultados: A idade média dos pacientes foi 69 anos, 47 (64%) homens, 27 (37%) com acidente vascular encefálico, e 13 (18%)ataque isquêmico transitório. O melhor critério para estenoses de 50% - 69% foi PVS ACI ≥ 141 cm/s (sensibilidade: 94%, especificidade: 90%, acurácia: 93%) (AUC 0,97). Para estenoses entre 70% ‑ 99%, PVS ACI ≥ 176 cm/s mostrou sensibilidade: 92%; especificidade: 87%; acurácia: 90%; PVS ACI ≥ 230 cm/s teve sensibilidade: 89%; especificidade: 89%; acurácia:89% (AUC 0,96); e a razão PVS ACI/ACC≥ 4,0 teve sensibilidade: 70%; especificidade: 100%; e acurácia: 81% (AUC 0,96). Seis oclusões de ACI foram detectadas à DE e arteriografia. A correlação DE e arteriografia foi: PVS (0,81 – p < 0,001); VDF (0,78 – p < 0,001) e razão PVS ACI/ACC (0,81 – p < 0,001). Conclusões: Doppler Ecografia é um método confiável na detecção das estenoses carotídeas, correlacionando-se bem com a arteriografia, sendo importante validar os critérios DE que melhor se aplicam a cada serviço.

Introduction: The Doppler Ultrasonography (DU) is largely used to diagnose carotid stenoses. In 2003, the American Society of Radiology issued a consensus establishing criteria for gradating the stenoses of the Internal Carotid Artery (ICA). In 2009, a group in the United Kingdom presented recommendations for performing DU of carotid arteries. Objective: Evaluating the accuracy of the velocimetric criteria used to gradate internal carotid artery stenoses by Doppler Ultrasonographycompared to arteriography. Methods: We evaluated 73 patients (146 ICA): Peak Systolic Velocity (PSV), End-Diastolic Velocity (EDV) of ICA and the ICA/Common Carotid Artery (CCA) PSV ratio to detect stenoses < 50%, 50% - 69% (PSV: 125-230 (cm/s), 70% - 99% (PSV > 230 (cm/s). The correlation between DU and arteriography was ascertained with the Spearman’s method and p < 0.05 deemed statistically significant.Results: The patients’ average age was 69 years, 47 (64%) men, 27 (37%) with cerebrovascular accident, and 13 (18%), transient ischemic attack.The best criterion for stenoses of 50% - 69% was ICA PSV ≥ 141 cm/s (sensitivity: 94%, specificity: 90%, accuracy: 93%) (AUC 0.97). For stenoses between 70% - 99%, ICA PSV ≥ 176 cm/s presented sensitivity: 92%; specificity: 87%; accuracy: 90%; ICA PSV ≥ 230 cm/s presented sensitivity:89%; specificity: 89%; accuracy: 89% (AUC 0.96); and ICA/CCA PSV ratio ≥ 4.0 presented sensitivity: 70%; specificity: 100%; and accuracy:81% (AUC 0.96). Six ICA occlusions were detected by DU and arteriography. The DU and arteriography correlation was: PSV (0.81 – p < 0.001);EDV (0.78 – p < 0.001) and ICA/CCA PSV ratio (0.81 – p < 0.001).Conclusions: The Doppler Ultrasonography is a reliable method for detecting carotid stenoses, having a good correlation with arteriography.In this respect, validating the DU criteria which better suit each service is important.