Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Eur Radiol ; 14(4): 659-64, 2004 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-14566425

RESUMO

The aim of this study was to determine if a saline solution flush following low dose contrast material bolus improves parenchymal and vascular enhancement during abdominal multiple detector-row computed tomography (MDCT). Forty-one patients (24 men and 17 women; mean age 49 years, age range 27-86 years) underwent abdominal MDCT (collimation 4x5 mm, 15-mm table increment, reconstruction interval 5 mm, gantry rotation period 0.8 s) with a single- as well as with a double syringe power injector. Indication for examination were benign and malignant tumors and inflammatory diseases. Patients received 100 ml nonionic contrast material (300 mgI/ml) alone or pushed with 20 ml saline solution. Mean enhancement values for both protocols were measured in the liver, the spleen, the pancreas, the renal cortex, the portal vein, the inferior vena cava and the abdominal aorta. Double syringe power-injector protocol led to significantly higher parenchymal and vascular enhancement than single syringe power-injector protocol (p<0.05). The improvement in mean enhancement of the liver was 9 +/- 9 HU, of the spleen 8 +/- 10 HU, of the pancreas 7 +/- 9 HU, and of the renal cortex 8 +/- 20 HU. The improvement in mean enhancement of the portal vein was 10 +/- 17 HU of the inferior vena cava 8 +/- 13 HU and of the abdominal aorta 10 +/- 17 HU. The use of a double syringe power injector with saline flush following contrast material bolus significantly improves parenchymal and vascular enhancement during contrast-enhanced abdominal MDCT with low iodine doses.


Assuntos
Meios de Contraste , Radiografia Abdominal/métodos , Cloreto de Sódio/administração & dosagem , Tomografia Computadorizada Espiral/métodos , Feminino , Humanos , Aumento da Imagem , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
2.
J Comput Assist Tomogr ; 27(6): 847-53, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-14600448

RESUMO

OBJECTIVE: To evaluate the potential of a saline solution flush after the contrast material bolus in abdominal multidetector row CT (MDCT) in contrast material dose and cost reduction. METHODS: Abdominal MDCT was performed in 78 patients who were assigned randomly to 2 groups receiving 120 mL nonionic contrast material (300 mgI/mL) alone or 100 mL of the same contrast material pushed with 40 mL of saline solution. Mean attenuation values for both groups were measured in the liver, the spleen, the pancreas, the portal vein, the inferior vena cava, and the abdominal aorta. Cost analyses were performed for both groups. RESULTS: There was no significant difference in parenchymal and vascular enhancement between both groups. The difference of the enhancement was 2 HU for the liver (P = 0.11), 2 HU for the spleen (P = 0.44), 3 HU for the pancreas (P = 0.38), 9 HU for the portal vein (P = 0.11), 3 HU for the inferior vena cava (P = 0.55), and 10 HU for the aorta (P = 0.06). Taking the costs of contrast material, saline solution, and disposal material into account, 7.30 dollars was saved by the patient using a saline solution flush. CONCLUSIONS: Using a saline flush after the contrast material bolus in abdominal MDCT allows an iodine dose reduction of approximately 6 g, or 17%, without impairing mean parenchymal and vascular enhancement and a cost reduction of 7.30 dollars per patient.


Assuntos
Meios de Contraste/administração & dosagem , Radiografia Abdominal/economia , Radiografia Abdominal/métodos , Tomografia Computadorizada por Raios X/economia , Tomografia Computadorizada por Raios X/métodos , Idoso , Controle de Custos , Custos e Análise de Custo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cloreto de Sódio/administração & dosagem
3.
Urol Int ; 71(3): 319-21, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-14512656

RESUMO

Primitive neuroectodermal tumor (PNET) is a very aggressive neoplasm, considered to have an unfavorable prognosis, and renal location is extremely rare. We present the findings and clinical course of a patient with localized disease who is free of disease more than 3 years after first presentation. In suspicious cases we recommend to surgically explore renal masses as early as possible.


Assuntos
Neoplasias Renais , Tumores Neuroectodérmicos , Adolescente , Feminino , Humanos , Neoplasias Renais/diagnóstico , Neoplasias Renais/cirurgia , Tumores Neuroectodérmicos/diagnóstico , Tumores Neuroectodérmicos/cirurgia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...