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1.
Rev. méd. Chile ; 132(3): 347-352, mar. 2004. ilus
Article in Spanish | LILACS | ID: lil-384177

ABSTRACT

We report a 38 years old female patient with a pancreatic mucinous cystadenocarcinoma. She presented at the onset with a peritoneal rupture that required emergency surgery. Five months later, the patient was subjected to a segmental pancreatectomy and splenectomy. One year later, the patient had a serious gastric bleeding secondary to a gastric ulcer. Due to a persistent increase in her CA 19-9 levels, a Positron Emission Tomography (PET) functional imaging with fluorine 18-deoxyglucose (F18FDG) was done. It showed an intense focal hypermetabolism in the gastric wall reported as a secondary tumour location. The patient was subjected to a total gastrectomy and Roux en Y anastomosis, with a good outcome. The pathological study confirmed the presence of a metastasis of an adenocarcinoma in the gastric wall. The relative value of CA 19-9 markers and FDG PET in pancreatic and gastric carcinomas is discussed (Rev MÚd Chile 2004; 132: 347-52).


Subject(s)
Humans , Adult , Female , Pancreatic Neoplasms , /metabolism , /therapeutic use , Tomography, Emission-Computed
2.
Rev. chil. radiol ; 8(2): 53-58, 2002. ilus
Article in Spanish | LILACS | ID: lil-627475

ABSTRACT

Nuclear Endocrinology was the first clinical use of radionuclides, five decades ago. From those days to the present, nuclear medicine has a definitive role in the diagnosis of a great variety of clinical situations, from the very frequent thyroid nodule to the unusual neuroendocrine tumors, including parathyroid hyperfunctioning tissue. Radioiodine I131 still remains a very effective treatment for differentiated thyroid cancer and whole body scan with I131 in conjunction with seric Tyroglobulin level are the main follow-up strategies for these tumors. New techniques, like positron emission tomography (PET) and newer radiolabeled peptides, among others, will offer a molecular approach to the 21st century clinical nuclear medicine.


Se presentan las principales indicaciones actuales de los estudios radioisotópicos en endocrinología clínica, y su situación relativa con el resto de las técnicas de imagen no invasivas disponibles en nuestro medio. Se discuten brevemente las nuevas aplicaciones terapéuticas y su potencial desarrollo.


Subject(s)
Humans , Radionuclide Imaging/methods , Endocrine System Diseases/diagnostic imaging , Nuclear Medicine/instrumentation , Nuclear Medicine/methods , Parathyroid Glands/diagnostic imaging , Thyroid Gland/diagnostic imaging , Adrenal Glands/diagnostic imaging
3.
Rev. chil. cardiol ; 9(4): 209-17, oct.-dic. 1990. tab
Article in Spanish | LILACS | ID: lil-96694

ABSTRACT

La evaluación de la función diastólica del ventrículo izquierdo (FDVI), que clásicamente se ha derivado del estudio hemodinámico invasivo, ha adquirido una gran importancia clínica en los últimos años. Diversas cardiopatías pueden presentar alteraciones del llenado ventricular, en forma aislada o antes de su evolución hacia la disfunción sistólica. Sin embargo, el estudio invasivo de la FDVI no es fácil. En nuestro medio existe aún poca experiencia con los métodos no invasivos disponibles en la actualidad para el estudio del diástole, entre los cuales se encuentra la ventriculografía radioisotópica (VRI). Se presentan los resultados de la evaluación del llene diastólico del v. izquierdo mediante VRI gatillada y análisis de Fourler, en un grupo de 14 cardiópatas coronarios con función sistólica conservada. Se determina en la ventriculografía contrastada la velocidad máxima de llene del v. izquierdo (VMax), la que se compara favorablemente con los datos obtenidos del estudio isotópico (VMax) y el tiempo en alcanzarla (TVMax). El 86% de los pacientes tiene disfunción diastólica. El grado de correlación entre ambas técnicas es aceptable (r = 0,61) y el nivel de concordancia es alto (86%). De acuerdo a estos resultados, consideramos que la ventriculografía isotópica es una herramienta útil, fácil y reproducible en el estudio seriado del llene ventricular


Subject(s)
Middle Aged , Humans , Male , Female , Diastole , Heart Ventricles/physiology , Heart Ventricles , Radionuclide Ventriculography/methods , Angiography
4.
Rev. méd. Chile ; 118(9): 993-9, sept. 1990. tab
Article in Spanish | LILACS | ID: lil-96536

ABSTRACT

Thalium 201 myocardial scintigraphy was used to evaluate coronary perfusion in 20 patients with left bundle branch suspected of having coronary artery disease. Contemporary arteriography was performed in 9 of these patients. sensitivity and specificity of the method was similar to that obtained in patients without LBBB. A false positive results indicated ischemia f the interventricular septal region in a patient with normal coronaru arteries, a known limitation of the method


Subject(s)
Middle Aged , Humans , Male , Female , Thallium , Bundle-Branch Block/diagnosis , Bundle of His/blood supply , Perfusion , Ischemia , Myocardium
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