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Search Results: 1 - 10 of 8287 matches for " Cerri Giovanni Guido "
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A Radiologia Brasileira nos próximos anos
Cerri Giovanni Guido
Radiologia Brasileira , 2001,
Intraoperative ultrasonography of liver, bile ducts and pancreas
Cerri, Luciana Mendes de Oliveira;Cerri, Giovanni Guido;
Sao Paulo Medical Journal , 1996, DOI: 10.1590/S1516-31801996000400002
Abstract: 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, and in the performance of interventionist procedures.
Dopplervelocimetric evaluation of portal vein as a diagnostic tool for portosystemic shunt diagnosis in dogs
Carvalho, Cibele Figueira;Cerri, Giovanni Guido;Chammas, Maria Cristina;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009005000084
Abstract: the objective of this research was to verify if the study of portal hemodynamic parameters through duplex doppler ultrasonography (dus) is able to help to detect portosystemic shunt (pss) and the shunted vessel origin. it was detected pss in 20 dogs by abdominal dus and confirmed at surgery or necropsy from march of 2004 until march 2007. main ultrasonographic findings were: identification of a tortuous vessel shunting portal flow being: portocaval shunt (16/20 or 80%), esplenocaval shunt (2/20 or 10%), gastrocaval shunt (1/20 or 5%), portoazigo shunt (1/20 or 5%); 2) elevated portal flow velocity before shunt (17/20 or 81%), 3) lower portal flow velocity after shunt (17/20 or 81%), 4) turbulence in the caudal vena cava (10/20 or 47,5%) and 5) reduced liver size (15/20 or 71%). the others ultrasonographic findings associated with clinical records were similar to that described in literature. with this work we could conclude that hemodynamic assessment of portal vein with dus may be a useful tool for pss diagnosis and to detect the shunted vessel origin.
Parametros Doppler velocimétricos das artérias renais e da aorta abdominal em gatos da ra?a persa
Carvalho, Cibele Figueira;Cerri, Giovanni Guido;Chammas, Maria Cristina;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009005000095
Abstract: prospective study was made performing doppler ultrasonographic exams of fifty kidneys belonging to persian adult cats. the animals were classified as healthy by laboratorial exams and measurement of arterial systolic pressure. maximal systolic blood flow velocity (vps), minimal diastolic blood flow velocity (vdf) and resistivity index (ir) of renal arteries (ar) and aorta (ao) of each animal were evaluated. the results are: left renal artery vps 40.96±9.08cm s-1 and ir 0.55±0.07; right artery vps 41.39±9.89cm s-1 and ir 0.52±0.07. it was not observed any statistical significant difference among the sides. considering both renal arteries it was calculated vps 41.17±9.40cm s-1 and ir 0.53±0.07. renal arterial diameter was 0.15±0.02cm. the aorta vps obtained was 53.17±13.46cm s-1 and the diameter was 0.38±0.04cm. correlation velocities of renal artery and aorta resuled in a relation 0.38 as minimal and 1.52 as maximal, with 0.82±0.30.
Princípios físicos do Doppler em ultra-sonografia
Carvalho, Cibele Figueira;Chammas, Maria Cristina;Cerri, Giovanni Guido;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000300047
Abstract: doppler ultrasonography is a relatively new diagnostic tool in veterinary medicine that provides real time details about vascular architecture and hemodynamic aspects of examinated blood vessels in several internal organs. doppler can identify the presence, direction and type of blood flow. this literature review provides information about the physical principles of doppler ultrasonography. the enlargement of expertise about this technology lead to a better comprehension of its use and limitations as a diagnostic technique, which already becomes usual in veterinary medicine of small animals.
Morfologia duplex Doppler dos principais vasos sanguíneos abdominais em pequenos animais
Carvalho, Cibele Figueira;Chammas, Maria Cristina;Cerri, Giovanni Guido;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000300048
Abstract: duplex doppler ultrasonography is able to provide real time anatomic and hemodynamic information. the complete knowledge of the normal doppler spectrum of each blood vessel is important to their identification, since each vessel has a specific doppler sign. recognizing the changes in the morphology of doppler spectrum is only possible based on previous knowledge of its variations. this is a literature review about doppler pattern of the major abdominal blood vessels in small animals.
Adenocarcinoma da próstata: a altera??o hipoecogênica difusa da próstata é um achado ultra-sonográfico importante?
K?keny, Greice Priscilla;Cerri, Giovanni Guido;Cerri, Luciana Mendes de Oliveira;Barros, Nestor de;
Radiologia Brasileira , 2001, DOI: 10.1590/S0100-39842001000400007
Abstract: purpose: the purpose of this study was to evaluate the relationship between diffuse hypoechoic appearance of the prostate, which is characterized by indistinguishable boundaries between the peripheral zone and the inner gland, and the diagnosis of prostate adenocarcinoma established by transrectal prostate biopsies. materials and methods: we performed transrectal ultrasonography in 143 male patients with serum prostate specific antigen levels above 4 ng/ml. randomized biopsies were carried out in all patients. results: prostate adenocarcinoma was diagnosed in 36.4% of the patients. twenty-one (95.4%) out of 22 patients with diffuse hypoechoic appearance of the prostate had positive biopsies for prostate adenocarcinoma. conclusion: ultrasound diffuse hypoechoic appearance of the prostate is a significant criterion for suspecting adenocarcinoma, since 95.4% of the patients exhibiting this ultrasound findings presented positive biopsies.
Adenocarcinoma da próstata: a altera o hipoecogênica difusa da próstata é um achado ultra-sonográfico importante?
K?keny Greice Priscilla,Cerri Giovanni Guido,Cerri Luciana Mendes de Oliveira,Barros Nestor de
Radiologia Brasileira , 2001,
Abstract: Avaliar se há associa o entre a observa o de altera o hipoecogênica difusa da próstata, com perda da demarca o entre a zona periférica e a glandula interna, e o diagnóstico de adenocarcinoma de próstata na biópsia prostática transretal. MATERIAIS E MéTODOS: Avaliamos 143 homens com nível sérico de antígeno prostático específico maior do que 4 ng/ml. Todos os pacientes foram submetidos à ultra-sonografia endorretal e biópsia randomizada da próstata. RESULTADOS: Foi diagnosticado adenocarcinoma de próstata em 36,4% dos pacientes. A altera o hipoecogênica difusa da próstata, caracterizada por perda da demarca o entre a zona periférica e a glandula central, foi observada em 22 pacientes e correspondeu ao diagnóstico de adenocarcinoma de próstata em 21 deles (95,4%). CONCLUS O: A altera o hipoecogênica difusa da próstata constituiu um critério de suspeita ultra-sonográfica de adenocarcinoma de próstata altamente significativo, já que em 95,4% das próstatas que apresentavam essas características a biópsia foi positiva para adenocarcinoma de próstata
Cole??o líquida adjacente ao ligamento falciforme em pacientes no pós-operatório imediato de transplante de fígado: achado ultra sonográfico normal ou anormal? Estudo prospectivo
Machado, Márcio Martins;Rosa, Ana Cláudia Ferreira;Barros, Nestor de;Cerri, Luciana Mendes de Oliveira;Cerri, Giovanni Guido;
Radiologia Brasileira , 2003, DOI: 10.1590/S0100-39842003000200005
Abstract: liver transplantations are increasingly being performed, thus requiring accurate evaluation of related complications. ultrasonography is the first screening technique for the detection of complications of liver transplantation. the authors report the finding of fluid collection around the falciform ligament in the immediate postoperative period of liver transplantation in patients with no signs of intraabdominal sepsis. this finding was observed in 33 (94.3%) of the 35 patients evaluated. the authors consider this finding to be a normal occurrence in the immediate postoperative period of liver transplantation.
Carcinoma verrucoso da m?o: uma rara apresenta??o avaliada por ressonancia magnética
Lopes, Jailson Rodrigues;Rodrigues, Marcelo Bordalo;Rosemberg, Laercio Alberto;Louren?o, Rafael Burgomeister;Cerri, Giovanni Guido;
Radiologia Brasileira , 2011, DOI: 10.1590/S0100-39842011000400013
Abstract: verrucous carcinoma is a variant of squamous cell carcinoma seen in mucous membranes and skin, and rarely found in the hand. the present report describes a case of two lesions on the dorsum of the hand, with no contact to each other, which underwent en-block resection and were confirmed as verrucous carcinoma.
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