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Ultrasonography-guided scleral buckle retinopexy and cryotherapy: case report; Retinopexia com "buckle" escleral e crioterapia guiada por ultrassom: relato de caso

LUCENA, Daniel da Rocha; RIBEIRO, Jefferson Augusto Santana; FOLGOSA, Marco Sérgio Pinto Alves; LUCENA, Levy da Rocha; JORGE, Rodrigo
Fonte: Conselho Brasileiro de Oftalmologia Publicador: Conselho Brasileiro de Oftalmologia
Tipo: Artigo de Revista Científica
ENG
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If the ocular media are clear, indirect binocular ophthalmoscopy allows retinal detachment and retinal tear identification and treatment under direct visualization. However, if opacities are present preventing direct fundus examination, ultrasonography becomes the most important tool for evaluating the posterior segment. In addition, ultrasonography can be useful in retinal tear treatment by guiding cryotherapy. In this article we describe a rhegmatogenous retinal detachment treatment technique applied to a patient with corneal opacity. Cryopexy and circumferential and radial buckle positioning were guided by ultrasonography, resulting in retinal attachment during the 6-month follow-up period.; Quando os meios oculares são transparentes, oftalmoscopia binocular indireta permite a identificação de descolamento de retina e roturas, bem como seu tratamento sob visibilização direta. Porém, em olhos que apresentam opacidades de meios impedindo o exame oftalmoscópico, a ultrassonografia constitui o exame mais importante do segmento posterior do olho. Além disso, o tratamento de roturas retinianas também pode ser auxiliado pelo uso desse equipamento, orientando a crioterapia. Neste trabalho será apresentada técnica de tratamento de descolamento de retina regmatogênico...

Análise da fisiologia da deglutição por meio da ultra-sonografia; Physiology analysis of deglutition via ultrasonography

Lynch, Cinthya da Silva
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 18/04/2008 PT
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INTRODUÇÃO: O mecanismo de proteção das vias aéreas consiste na inibição reflexa da respiração, fechamento do esfíncter glótico, elevação e anteriorização laríngea. Na fase faríngea da deglutição, o deslocamento do complexo hio-laríngeo pode trazer dados importantes para a observação da proteção funcional de vias aéreas. O exame de ultra-sonografia é um método que pode revelar informações sobre a avaliação, diagnóstico e prognóstico das disfagias, além de ser utilizado como recurso de retroalimentação. Por outro lado, apresenta limitações, quando comparada à videofluoroscopia, método tradicionalmente utilizado, pois não fornece a visualização panorâmica do processo de deglutição e dá acesso restrito a algumas estruturas faríngeas. OBJETIVO: Quantificar, por meio da ultra-sonografia, os parâmetros espaciais do complexo hio-laríngeo na dinâmica da deglutição e a associação entre idade e efeitos decorrentes do processo fisiológico do envelhecimento. MÉTODOS: Neste estudo quantitativo e prospectivo foram incluídos 39 indivíduos sadios, de ambos os gêneros, na faixa etária de 50 a 90 anos (média 45,56; DP 14,53). Todos os indivíduos preencheram os critérios de normalidade para a função de deglutição. Foram excluídos indivíduos com histórico de doenças neurológicas...

Avaliação do volume e dos índices de vascularização dos rins fetais por meio da ultrassonografia tridimensional: proposta de valores de referência; Assessment of the volume and indices of vascularization of fetal kidneys by means of three-dimensional ultrasonography: proposal for reference values

Yoshizaki, Carlos Tadashi
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 04/07/2012 PT
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INTRODUÇÃO: A função renal fetal é avaliada tradicionalmente pelo aspecto ultrassonográfico, pela análise bioquímica da urina fetal, somada com o diagnóstico exato da natureza da lesão. A análise bioquímica da urina é uma avaliação invasiva e apresenta riscos maternos e fetais. A avaliação por meio da ultrassonografia é método não invasivo e a presença de oligoâmnio é indicativo de displasia renal grave, contudo, de diagnóstico tardio nos casos de patologia renal fetal. O volume renal fetal pode correlacionar-se com a sua função e pode ser avaliado por meio da ultrassonografia bidimensional. Entretanto, esse método apresenta subestimação no cálculo de volume, enquanto por meio da ultrassonografia tridimensional há maior precisão e acurácia em avaliar o volume renal fetal. A ultrassonografia Power Doppler tridimensional é o exame ideal para avaliar a vascularização de parênquima de órgãos fetais e pode ser útil na avaliação da função do rim fetal. OBJETIVOS: O presente estudo tem por objetivos utilizar a ultrassonografia tridimensional acoplado ao Power Doppler e elaborar curvas com valores de referência do volume e dos índices de vascularização dos rins fetais segundo a idade gestacional. MÉTODOS: Realizou-se estudo prospectivo e transversal em gestantes sem patologia...

Quantificação dos volumes do líquido amniótico e do embrião obtidos pela ultra-sonografia bidimensional e tridimensional no primeio trimestre da gestação; Quantitation of amniotic fluid and embryo volumes by two-dimensional and three-dimensional ultrasonography in the first trimester of pregnancy.

Spara, Patricia
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 29/09/2005 PT
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O objetivo desse estudo foi determinar os valores do volume do líquido amniótico e do embrião, pela ultra-sonografia bidimensional e tridimensional em gestantes normais da 8ª a 11ª semana de gestação. Realizamos estudo prospectivo longitudinal em 25 fetos normais. Os critérios de inclusão foram gestações únicas, avaliação clínica e laboratorial normal e os de exclusão, gestantes portadoras de patologias maternas e/ou próprias da gestação, como também as usuárias de fumo, álcool ou drogas. Todas as pacientes assinaram o termo de consentimento esclarecido pós-informado. Os exames foram realizados por dois observadores que utilizaram aparelho ultra-songráfico modelo SA-9900 (MEDISON), transdutor endovaginal volumétrico, banda larga, de 5- 6,5 MHz, com 120 0 de campo visual. Cada gestante foi avaliadana 8ª, 9ª, 10ª e 11ª semana de gestação. O estudo bidimensional consistiu da determinação das medidas volumétricas por cálculo matemático baseado na forma do elipsóide, averiguando-se o volume do saco amniótico total e do embrião. No estudo tridimensional o volume do líquido amniótico foi feito pela técnica VOCAL. Em ambos o volume do líquido amniótico foi obtido da subtração da medida do volume do saco amniótico pela medida volumétrica do embrião. Os dados foram analisados pela análise de variância (ANOVA)...

Comparação do ultra-som e da histeroscopia como metodo diagnostico para as doenças intra-uterinas; Comparative study of ultrasonography and hysteroscopy for the detection of intrauterine diseases

Daniela Angerame Yela Gomes
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 07/11/2008 PT
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Introdução: As doenças intra-uterinas são freqüentes entre as mulheres. Entre estas doenças podemos citar os pólipos endometriais, miomas, sinéquias intrauterinas, malformações uterinas, hiperplasias endometriais e câncer de endométrio. Para seu diagnóstico dispõe-se de métodos como o ultra-som e a histeroscopia diagnóstica, considerada padrão-ouro. O ultra-som, que surgiu na ginecologia na década de 70, avalia a espessura do endométrio, sua alteração de ecogenecidade e seus limites. Através destas características pode sugerir a doença, mas muitas vezes deixa dúvidas sobre o diagnóstico definitivo presente no útero. Apesar disso, é um método de fácil realização e com alta sensibilidade para alterações uterinas. A histeroscopia, por sua vez, é um exame mais preciso, pois permite uma melhor identificação das tumorações intracavitárias, embora para o diagnóstico definitivo seja freqüentemente necessário que se lance mão de biópsias. A dificuldade de aprendizado desta técnica tem atrapalhado a difusão da técnica. Objetivo: Avaliar a eficácia do ultra-som transvaginal e da histeroscopia ambulatorial no diagnóstico das alterações intra-uterinas. Sujeitos e Métodos: Foram realizados dois estudos...

Screening of breast lesions: a comparative study between mammography, B-mode ultrasonography, sonoelastography and histological results

Pardal,Raquel Constantino; Abrantes,António Fernando Lagem; Ribeiro,Luís Pedro Vieira; Almeida,Rui Pedro Pereira; Azevedo,Kevin Barros; Figueiredo,Teresa Leonor; Rodrigues,Sónia Isabel
Fonte: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem Publicador: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2013 EN
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Objective To compare the capacity of mammography, sonoelastography, B-mode ultrasonography and histological analysis to differentiate benign from malignant breast lesions. Materials and Methods A total of 12 histopathologically confirmed breast lesions were documented. The lesions were assessed by means of mammography, B-mode ultrasonography and sonoelastography, and histopathological analysis was utilized as a gold standard. Sensitivity and specificity were calculated. A receiver operating characteristic (ROC) curve was constructed to evaluate the diagnostic performance of the mentioned techniques. Results Sensitivity and specificity in the differentiation between benign and malignant lesions were respectively 100% and 50% for mammography, 100% and 71% for B-mode ultrasonography, and 67% and 83% for sonoelastography. The area under the ROC curve was calculated for the three imaging modalities and corresponded to 0.792 for mammography, 0.847 for B-mode ultrasonography, and 0.806 for sonoelastography. Conclusion Sonoelastography demonstrated higher specificity and lower sensitivity as compared with mammography and B-mode ultrasonography. On the other hand, B-mode ultrasonography had the largest area under the ROC curve. Sonoelastography has demonstrated to be a promising technique to detect and evaluate breast lesions...

Anatomical and functional characteristics of the pelvic floor in nulliparous women submitted to three-dimensional endovaginal ultrasonography: case control study and evaluation of interobserver agreement

Murad-Regadas,Sthela Maria; Bezerra,Leonardo Robson Pinheiro Sobreira; Silveira,Claudio Regis Sampaio; Pereira,Jacyara de Jesus Rosa; Fernandes,Graziela Olivia da Silva; Vasconcelos Neto,José Ananias; Dealcanfreitas,Iris Daiana
Fonte: Federação Brasileira das Sociedades de Ginecologia e Obstetrícia Publicador: Federação Brasileira das Sociedades de Ginecologia e Obstetrícia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/03/2013 EN
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PURPOSE: To determine anatomical and functional pelvic floor measurements performed with three-dimensional (3-D) endovaginal ultrasonography in asymptomatic nulliparous women without dysfunctions detected in previous dynamic 3-D anorectal ultrasonography (echo defecography) and to demonstrate the interobserver reliability of these measurements. METHODS: Asymptomatic nulliparous volunteers were submitted to echo defecography to identify dynamic dysfunctions, including anatomical (rectocele, intussusceptions, entero/sigmoidocele and perineal descent) and functional changes (non-relaxation or paradoxical contraction of the puborectalis muscle) in the posterior compartment and assessed with regard to the biometric index of levator hiatus, pubovisceral muscle thickness, urethral length, anorectal angle, anorectal junction position and bladder neck position with the 3-D endovaginal ultrasonography. All measurements were compared at rest and during the Valsalva maneuver, and perineal and bladder neck descent was determined. The level of interobserver agreement was evaluated for all measurements. RESULTS: A total of 34 volunteers were assessed by echo defecography and by 3-D endovaginal ultrasonography. Out of these, 20 subjects met the inclusion criteria. The 14 excluded subjects were found to have posterior dynamic dysfunctions. During the Valsalva maneuver...

Intraoperative ultrasonography of liver, bile ducts and pancreas

Cerri,Luciana Mendes de Oliveira; Cerri,Giovanni Guido
Fonte: Associação Paulista de Medicina - APM Publicador: Associação Paulista de Medicina - APM
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/1996 EN
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The use of intraoperative ultrasonography (IOUS) to evaluate liver, bile ducts and pancreatic disease, as compared to the results of preoperative ultrasonography and CT, is discussed. Forty-two patients who underwent abdominal surgery for suspected hepatobiliary and/or pancreatic disease were studied. The intraoperative study was carried out with a portable apparatus (Aloka 500, Japan), using 5.0 MHz and 7.5 MHz linear sterile transducers. The main indications for IOUS were the search for and/or evaluation of primary hepatic masses,hepatic abscesses or metastases, obstructive jaundice, or neuroendocrine tumors. In 15 cases (38.5 percent) from the hepatobiliary group and in 7 cases (58.3 percent) from the pancreatic group, a difference between preoperative and intraoperative findings was observed. The main difference was observed in relation to the number and size of hepatic and pancreatic lesions. The relationship between the lesions and the vascular structures was evaluated through IOUS. The method was also used to guide surgical procedures such as biopsies, the alcoholization of nodules, and the drainage of abscesses. IOUS plays an important role in detecting small hepatic and pancreatic nodules, in the assessment of anatomical relationships between the lesions and the vascular structures...

Vascular ultrasonography for follow-up of endovascular repair of abdominal aorta aneurysms

Moraes Filho,Domingos; Trevisan,Fernando Barbosa; Silvestre,José Manoel da Silva; Sardinha,Wander Eduardo; Ramires,Eduardo Durante; Dias,Silfayner Victor Mathias; Matsuda,Henrique
Fonte: Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV) Publicador: Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV)
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2014 EN
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Background There is little information available on follow-up of abdominal aortic aneurysm patients treated with endovascular repair using vascular ultrasonography in Brazil or on how it compares with the results of angiotomography. Since ultrasonography is an examination that is risk-free, inexpensive and widely available, it is a very attractive method. In this study we attempted to evaluate the sensitivity and specificity of vascular ultrasonography for follow-up of these patients by comparing the method with angiotomography. Materials and methods We conducted a prospective study from June 2012 to May 2013. We examined patients followed-up at the endovascular surgery clinic run by the University Hospital of Londrina after endovascular repair of abdominal aortic aneurysms. All patients underwent angiotomography for follow-up and were also examined using simple abdominal X-rays and vascular ultrasonography. Results A total of 30 patients were analyzed, with a mean age of 73 years and a mean aneurysm diameter of 6 cm. Four endoleaks were detected. Vascular ultrasonography achieved sensitivity of 75% and specificity of 96% for classification of these endoleaks, in comparison with angiotomography. Conclusions Vascular ultrasonography is an excellent primary method for evaluation and post-surgical follow-up of patients treated with endovascular repair of abdominal aorta aneurysms. However...

Role of intravenous urography and transabdominal ultrasonography in the diagnosis of bladder carcinoma

Rafique,Muhammad; Javed,Abrar A.
Fonte: Sociedade Brasileira de Urologia Publicador: Sociedade Brasileira de Urologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2004 EN
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INTRODUCTION: The present study was carried out to compare the efficacy of transabdominal ultrasonography and intravenous urography in the diagnosis of bladder carcinoma in those patients presenting painless hematuria. MATERIALS AND METHODS: Medical records of 100 patients who had both ultrasonography and intravenous urography were studied. The reported findings of these investigations were correlated with those of cystoscopy. RESULTS: Ultrasonography was significantly more sensitive (96%) in the detection of bladder carcinoma compared to urography (87%). By applying the test of equality of proportions, the value of Z is 2.28, which is statistically significant (p < 0.01). In addition, ultrasonography was more sensitive in clarifying the pathology in upper renal tracts i.e. ureteric obstruction secondary to bladder carcinoma when urography failed due to none or poor excretion of contrast. COMMENTS: We recommend the use of ultrasonography as the initial radiological investigation for detection of bladder carcinomas in patients presenting hematuria. Ultrasonography is safe, easily available, cost effective and provides images of both upper and lower renal tract. Patients diagnosed to be suffering from bladder carcinoma by ultrasonography should be scheduled directly and promptly for cystoscopy and bladder tumor resection.

Comparison of ultrasonography, computed tomography and magnetic resonance imaging with intraoperative measurements in the evaluation of abdominal aortic aneurysms

Azevedo,Francisco das Chagas de; Zerati,Antonio Eduardo; Blasbalg,Roberto; Wolosker,Nelson; Puech-Leão,Pedro
Fonte: Faculdade de Medicina / USP Publicador: Faculdade de Medicina / USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/02/2005 EN
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PURPOSE: To study the imaging exams more commonly used for abdominal aortic aneurysms evaluation - ultrasonography, conventional computerized tomography, helical computerized tomography and nuclear magnetic angioresonance - comparing the preoperative measurements reached by those radiological methods with the measurements made during the surgical procedures. METHODS: Patients who had indication of elective transperitoneal surgical treatment for their abdominal aortic aneurysms were included in the study. The initial diagnosis of the aortic dilatation was made by ultrasonography and, after the surgical treatment was indicated, the patient was submitted to another imaging method. Sixty patients were divided into 3 groups according to the complementary imaging method (conventional computerised tomography, helical computerized tomography, nuclear magnetic angioresonance). The ultrasonography of the first 20 patients were joined in a fourth group. There were considered in the study the measurements of the transversal diameter of the proximal neck, maximum transversal diameter of the aneurysm, straight-line length and transversal diameter of the common iliac arteries given by the imaging methods. The same measurements were made by using a caliper during the surgical procedure...

Ultrasonography accurately evaluates the dimension and shape of the pilonidal sinus

Mentes,Oner; Oysul,Asli; Harlak,Ali; Zeybek,Nazif; Kozak,Orhan; Tufan,Turgut
Fonte: Faculdade de Medicina / USP Publicador: Faculdade de Medicina / USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/03/2009 EN
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PURPOSE: To study the benefits of ultrasonography for detecting the borders of pilonidal sinus tissue. The correlation between physical and ultrasonographic examination was used for surgical planning. METHOD: Between April and December 2004, 73 patients were recruited for this study. All patients were examined, and the borders of the sinus tissue were marked on the skin according to palpation before surgery. The surgeon also made a treatment plan considering the diseased tissue and marked a possible incision line. Patients were subsequently examined with ultrasonography. According to the ultrasonographic evaluation, the margins, extensions, and openings of pilonidal sinus tissue were determined and marked on the patient in a different color by a radiologist prior to surgery. The most suitable surgical treatment was decided according to the information obtained by ultrasonography. RESULTS: The average age was 23.03 ± 3.05 (range 18-39) years. We found 81 lesions in 73 patients. Ultrasonographic borders of sinus tissue were similar to the borders marked by the surgeon in 56 patients (76.7%). In the remaining 17 patients (23.3%), ultrasonography detected branches or borders that distinctly exceeded the planned incision line. After ultrasonographic examination...

Intraoperative abdominal ultrasonography

Luck, A.; Maddern, G.
Fonte: Blackwell Publishing Ltd. Publicador: Blackwell Publishing Ltd.
Tipo: Artigo de Revista Científica
Publicado em //1999 EN
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BACKGROUND: Ultrasonography during abdominal surgery has been reported since the 1960s, but its use did not become widespread until the recent availability of high-frequency, high-resolution transducers. This review discusses the application of intraoperative ultrasonography to open and laparoscopic abdominal surgery. METHODS: A literature search (Medline) was undertaken. All papers pertaining to the subject matter that were located were included in the review. RESULTS: Intraoperative ultrasonography influences surgical strategy in up to 50 per cent of liver resections for malignancy. It is the single most sensitive technique for the detection of occult hepatic metastases at the time of primary colorectal resection. In pancreatic surgery, intraoperative ultrasonography is of value in the localization of islet cell tumours and in the assessment of resectability of adenocarcinoma. The technique may also have a role in staging laparoscopy, and in the operative management of kidney and gastrointestinal diseases. CONCLUSION: Ultrasonography is an ideal operative tool as it is safe, reproducible and requires no special patient preparation or positioning. It should be regarded as an essential component of major hepatobiliary and pancreatic procedures. The recent availability of flexible laparoscopic probes is likely to lead to a similar impact on minimal access surgery.; A. J. Luck...

Measurement of gastric emptying of a high-nutrient liquid by 3D ultrasonography in diabetic gastroparesis

Stevens, J.; Gilja, O.; Gentilcore, D.; Hausken, T.; Horowitz, M.; Jones, K.
Fonte: Blackwell Publishing Ltd Publicador: Blackwell Publishing Ltd
Tipo: Artigo de Revista Científica
Publicado em //2011 EN
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BACKGROUND: Gastric emptying (GE) is delayed in 30-50% of patients with longstanding diabetes. Scintigraphy represents the 'gold standard' for measurement of GE, but is associated with a radiation burden. Three-dimensional (3D) ultrasonography has recently been demonstrated to provide a valid measure of liquid GE in healthy subjects; however, the technique has not been validated in patients with gastroparesis. The primary aim of this study was to compare measurements of GE of a high-nutrient glucose drink by 3D ultrasonography and scintigraphy in diabetic gastroparesis. METHODS: Ten patients (eight type 1, two type 2, 6M, 4F, aged 46.1 ± 4.5 years, BMI 29.1 ± 1.6 kg m(-2), duration 19.6 ± 3.3 years) with diabetic gastroparesis [defined as retention at 100 min of solid (100 g minced beef) ≥ 61% and/or 50% emptying time (T50) of liquid (150 mL 10% dextrose) ≥ 31 min], were studied. Concurrent measurements of GE by scintigraphy and 3D ultrasonography were performed following ingestion of 75 g glucose in 300 mL water labeled with 20 MBq (99m) Tc-sulfur colloid. KEY RESULTS: There was no significant difference in GE between the two techniques (T50s: scintigraphy - 103.3 ± 10.0 min VS 3D ultrasonography - 98.8 ± 10.4 min; P = 0.60). There was a significant correlation between scintigraphic and ultrasonographic T50s (r = 0.67...

Medida da espessura do segmento uterino inferior em gestantes com cesárea prévia: análise da reprodutibilidade intra- e interobservador por ultra-sonografia bi- e tridimensional; Lower uterine segment thickness measurement in pregnant women with previous caesarean section: intra- and interobserver reliability analysis using bi- and tridimensional ultrasonography

BARRA, Daniela de Abreu; MARTINS, Wellington de Paula; GALLARRETTA, Francisco Maximilliano; NASTRI, Carolina Oliveira; NICOLAU, Luis Guilherme; MAUAD FILHO, Francisco
Fonte: Federação Brasileira das Sociedades de Ginecologia e Obstetrícia Publicador: Federação Brasileira das Sociedades de Ginecologia e Obstetrícia
Tipo: Artigo de Revista Científica
POR
Relevância na Pesquisa
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OBJETIVO: comparar a reprodutibilidade intra- e interobservador da medida da espessura total do segmento uterino inferior (SUI), por via abdominal, e da medida da camada muscular, por via vaginal, usando ultra-sonografia bi- e tridimensional. MÉTODOS: foi estudada a medida da espessura do SUI de 30 gestantes com cesárea anterior, entre a 36ª e a 39ª semanas, por dois observadores. Foi efetuada abordagem ultra-sonográfica abdominal com a paciente em posição supina e vaginal em posição de litotomia. No corte sagital, foi identificado SUI e foram coletadas quatro imagens bidimensionais e dois blocos tridimensionais da espessura total por via abdominal e o mesmo da camada muscular por via vaginal. As aquisições tridimensionais foram manipuladas no modo multiplanar. O tempo foi cronometrado. A reprodutibilidade foi avaliada pelo cálculo da diferença absoluta entre todas as medidas, proporção de diferenças menores que 1 mm, coeficiente de correlação intraclasse (ICC) e limites de concordância de Bland e Altman. RESULTADOS: a medida da espessura média do SUI por via abdominal bidimensional foi de 7,4 mm e, por via vaginal, de 2,7 mm; a tridimensional foi 6,9 mm abdominal e 5,1 mm vaginal. Reprodutibilidade intra- e interobservador da via vaginal versus abdominal: menor diferença absoluta (0...

Is dynamic two-dimensional anal ultrasonography useful in the assessment of anismus? A comparison with manometry

Murad-Regadas,Sthela Maria; Regadas,Francisco Sérgio P; Barreto,Rosilma Gorete Lima; Rodrigues,Lusmar Veras; Fernandes,Graziela Olivia da Silva; Lima,Doryane Maria dos Reis
Fonte: Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia - IBEPEGE ; Colégio Brasileiro de Cirurgia Digestiva - CBCD ; Sociedade Brasileira de Motilidade Digestiva - SBMD ; Federação Brasileira de Gastroenterologia - FBG; Sociedade Brasileira de Hepatologia - SBH; Sociedade Brasileira de Endoscopia Digestiva - SOBED Publicador: Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia - IBEPEGE ; Colégio Brasileiro de Cirurgia Digestiva - CBCD ; Sociedade Brasileira de Motilidade Digestiva - SBMD ; Federação Brasileira de Gastroenterologia - FBG; Sociedade Brasileira de Hepatologia - SBH; Sociedade Brasileira de Endoscopia Digestiva - SOBED
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2010 EN
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CONTEXT: Anismus is a prevalent functional cause of outlet delay. It is characterized by symptoms of obstructed defecation associated with paradoxical contraction of the pelvic floor muscles. OBJECTIVE: To evaluate the ability of two dimensional anal ultrasonography to identify anismus patients with paradoxical contraction or normal relaxation, comparing findings with manometric measurements. METHODS: Forty-nine women presenting with outlet delay and a mean validated Wexner constipation score of 13.5 were included in a prospective study. Following screening with anal manometry, the patients were assigned to one of two groups: G-I -with normal relaxation and G-II -patients with anismus. Dynamic anorectal ultrasonography was used to quantifier the movement of the puborectalis muscle and to measure changes in the angle between two converging lines drawn from the 3 o'clock and the 9 o'clock positions of the endoprobe circumference to the internal border of the puborectalis muscle. The angle decreases during straining in patients with normal relaxation, but increases in patients with anismus. The agreement between the two techniques was verified with the Kappa index. RESULTS: In manometry, during straining the anal canal pressure decreased by 41.3% in G-I and increased by 168.6% in G-II...

Comparação entre ultrassonografia, tomografia computadorizada e ressonância nuclear magnética com medidas intra-operatórias na avaliação dos aneurismas de aorta abdominal; Comparison of ultrasonography, computed tomography and magnetic resonance imaging with intraoperative measurements in the evaluation of abdominal aortic aneurysms

Azevedo, Francisco das Chagas de; Zerati, Antonio Eduardo; Blasbalg, Roberto; Wolosker, Nelson; Puech-Leão, Pedro
Fonte: Universidade de São Paulo. Faculdade de Medicina Publicador: Universidade de São Paulo. Faculdade de Medicina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Formato: application/pdf
Publicado em 01/02/2005 ENG
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OBJETIVO: Estudar os métodos mais freqüentemente empregados na avaliação dos aneurismas de aorta abdominal - ultrassonografia, tomografia computadorizada convencional, tomografia computadorizada helicoidal e angio-ressonância nuclear magnética - comparando as medidas fornecidas por estes exames radiológicos no pré-operatório com medidas realizadas durante a operação. MÉTODO: Foram incluídos no estudo pacientes portadores de aneurisma da aorta abdominal com indicação de tratamento cirúrgico eletivo por via transperitoneal. O diagnóstico inicial da dilatação aórtica foi feito com ultra-sonografia e, uma vez indicado o tratamento cirúrgico, era então solicitado um outro exame radiológico complementar, já que não é nossa rotina operar esses pacientes com base apenas na ultra-sonografia. Sessenta pacientes foram divididos em 3 grupos de acordo com o exame complementar realizado (tomografia computadorizada convencional, tomografia computadorizada helicoidal ou angio-ressonância nuclear magnética). As ultra-sonografias dos 20 primeiros pacientes foram incluídas em um 4° grupo. Analisamos neste estudo as medidas do colo proximal da aorta, o diâmetro transverso máximo e o comprimento do aneurisma, além do diâmetro transverso das artérias ilíacas comuns conseguidos a partir dos exames radiológicos. As mesmas medidas eram realizadas por ocasião da operação com o auxílio de um paquímetro e ...

Ultrasonography accurately evaluates the dimension and shape of the pilonidal sinus

Mentes, Oner; Oysul, Asli; Harlak, Ali; Zeybek, Nazif; Kozak, Orhan; Tufan, Turgut
Fonte: Universidade de São Paulo. Faculdade de Medicina Publicador: Universidade de São Paulo. Faculdade de Medicina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; ; Formato: application/pdf
Publicado em 01/03/2009 ENG
Relevância na Pesquisa
36.92%
PURPOSE: To study the benefits of ultrasonography for detecting the borders of pilonidal sinus tissue. The correlation between physical and ultrasonographic examination was used for surgical planning. METHOD: Between April and December 2004, 73 patients were recruited for this study. All patients were examined, and the borders of the sinus tissue were marked on the skin according to palpation before surgery. The surgeon also made a treatment plan considering the diseased tissue and marked a possible incision line. Patients were subsequently examined with ultrasonography. According to the ultrasonographic evaluation, the margins, extensions, and openings of pilonidal sinus tissue were determined and marked on the patient in a different color by a radiologist prior to surgery. The most suitable surgical treatment was decided according to the information obtained by ultrasonography. RESULTS: The average age was 23.03 ± 3.05 (range 18-39) years. We found 81 lesions in 73 patients. Ultrasonographic borders of sinus tissue were similar to the borders marked by the surgeon in 56 patients (76.7%). In the remaining 17 patients (23.3%), ultrasonography detected branches or borders that distinctly exceeded the planned incision line. After ultrasonographic examination...

Effectiveness of ultrasonography in detecting intraosseous vascularization: an in-vitro study; Eficácia da ultrassonografia na detecção de vascularização intraóssea: um estudo in vitro

Baladi, Marina Gazzano; Tucunduva, Maria Jose Albuquerque Pereira de Souza e; Tucunduva Neto, Renato; Cortes, Arthur Rodriguez Gonzalez; Aoki, Eduardo Massaharu; Arita, Emiko Saito; Freitas, Claudio Fróes de
Fonte: Universidade de São Paulo. Faculdade de Odontologia Publicador: Universidade de São Paulo. Faculdade de Odontologia
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Peer reviewed; Avaliado pelos pares Formato: application/pdf
Publicado em 28/09/2014 ENG
Relevância na Pesquisa
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Ultrasonography is useful to diagnose lesions, insofar as it detects the type of injury, and to assess the degree of vascularization of tumors. However, intraosseous lesions may represent a challenge, since the surrounding bone thickness could prevent ultrasound signal capture. The aim of this study was to evaluate the infl uence of surrounding bone thickness on the ability of ultrasonography in capturing the echo signal of blood vessels. Macerated porcine hemimandibles (n = 20) with different buccal bone thicknesses were prepared and adapted to receive CFlex-type rubber tubes connected to a glass capillary through which pump-driven water was conducted to simulate blood vasculature. Doppler ultrasonography was used to assess the blood fl ow in the region of the mandibular canal at the level of the molar teeth. Student’s t-test was used to assess differences between the bone thicknesses of hemimandibles with a negative and with a positive ultrasound signal. The presence of the echo signal in the simulated vasculature was assessed by ultrasonography. Reproducibility and reliability were confi rmed for the analyses. The simulated fl ow signal was captured in cortical bones with a thickness in the 0.2–1.0 mm range (0.59 ± 0.42 mm)...

Tridimensional (3D) ultrasonography

Muñoz Agel,F.; Varas Lorenzo,M. J.
Fonte: Revista Española de Enfermedades Digestivas Publicador: Revista Española de Enfermedades Digestivas
Tipo: info:eu-repo/semantics/article; journal article; info:eu-repo/semantics/publishedVersion Formato: text/html; application/pdf
Publicado em 01/02/2005 ENG
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A review and update on tridimensional ultrasonography covering all its aspects, ultrasonography and 3D endoscopic ultrasonography, its technical details and current indications, such as volume calculation, vascular architecture assessment, and role in interventionist ultrasounds. Images included are from the author's own experience.