Revista chilena de radiología

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List of Papers (Total 38)

NEUROPSIQUIATRIA: PET Y SPECT

Functional brain imaging with PET and SPECT have a definitive and well established role in the investigation of a variety of conditions such as dementia, epilepsy and drug addiction. With these methods it is possible to detect early rCBF (regional Cerebral Blood Flow) changes seen in dementia (even before clinical symptoms) and differentiate Alzheimer's disease from other...

RECONSTRUCCION CARDIACA EN GEMELOS TORACOPAGOS MEDIANTE IMAGENES DE TOMOGRAFIA COMPUTADA Y RESONANCIA MAGNETICA

Congenital malformations are the second childhood mortality cause in in Chile. The purpose of this study is to illustrate the use of advanced imaging techniques for diagnostic of congenital cardiac malformations on conjoined twins. Fetus malformated were preserved in a 10% formaldeide solution in Teratology Unit of Anatomy Department, Faculty of Medicine at University of Chile...

TROMBOEMBOLISMO PULMONAR: VENOGRAFIA POR TOMOGRAFIA COMPUTADA VERSUS ECOGRAFÍA DOPPLER, PARA DETECCION DE TROMBOSIS VENOSA PROFUNDA DE EXTREMIDADES INFERIORES

Pulmonary embolism is a condition with high morbidity and mortality. The deep venous thrombosis at the lower limbs remains as the main cause, so the evaluation of this venous system must be ruled out in patients at risk. Doppler US as CT venography of the lower limbs are the most useful diagnostic methods. The present study compares Doppler venous US findings with CT venography...

NEUMATOSIS INTESTINAL Y ALERGIA A LA PROTEINA DE LA LECHE DE VACA

Pneumatosis intestinalis in newly born infants constitutes a clinical manifestation greatly associated with the presence of necrotizing enterocolitis, a highly severe medical condition. This study provides a clinical case series presenting with bloody stools and benign pneumatosis intestinalis. A short colonoscopy proven diagnosis of allergic colitis was made, which was confirmed...

AVULSION TRAUMÁTICA RADICULAR LUMBAR: CASO CLÍNICO DE INTERÉS

Traumatic lumbosacral nerve root avulsion it's an infrequent injury that appears in association with pelvic and lumbar fractures or hip dislocations. We describe a clinical case of traumatic avulsion at the LI lumbar root in a patient victim of an accident of high energy, without associate injuries. Magnetic resonance demonstrated traumatic pseudomenin-gocele at the LI lumbar...

DETERMINACIÓN DE UN MÉTODO DE CALCULO DE DOSIS GLANDULAR PROMEDIO EN EXAMENES DE MAMOGRAFIA CONVENCIONAL

We present the application of a numerical model to estimate the mean glandular dose for mammography. A General Electric mammography system, tube voltaje of 20-35 kV with increments of 1 kV, tube current of 10-250 mAs, anode/filter combinations molybdenum/molybdenum was used. Over a period of two months, data from 162scans with craniocaudal and mediolateral oblique projections in...

HALLAZGOS DE IMAGEN EN TOMOGRAFIA COMPUTADA DE VOLUNTARIOS FUMADORES DE LARGA DATA

The finding of pulmonary nodules in computed tomography is extremely common, with a reported prevalence ranging between 8% and 51% in volunteers, usually around 25%. Of these, about 2% to 13% are malignant nodules. Age, medical records of extra thoracic cancer existing 5 years before nodule detection, spiculated edges, big size, upper location and a recorded history of tobacco...

SIGNO DEL MERCEDES BENZ

The Mercedes-Benz Sign can be observed on both plain abdominal radiography and abdominal computed tomography as well. This radiological sign is formed by the presence of gas within gallstones, with a typical triradiate arrangement, and it may be indicative of biliary calculi. It was first seen in 1931 on plain radiographs performed on patients with unexplained abdominal pain and...

VALIDEZ EN LA INVESTIGACIÓN IMAGINOLÓGICA

It is common to note that the concept of validity is given added significance in the realm of knowledge and scientific finding dissemination, despite being an attribute of value interpretation of measuring instruments. Improper management of this concept generates confusion and may lead to a false legitimation of scientific inferences. Through this review, the authors intend to...

Procedimientos intervencionales guiados por ultrasonido en radiología musculoesquelética

Ultrasound is a useful diagnostic modality to study many structures such as subcutaneous tissue, tendons, muscles, joints, and nerves. It has low cost, wide availability and high resolution. These advantages make ultrasound a good modality in interventional procedures like soft tissue tumors biopsy, aspiration of cysts and other collections, and also in treating symptomatic...

Signo de

Thyroid nodular disease is a highly prevalent condition. Most nodules are asymptomatic and only identifiable on images. We have established a relationship between the particular spoke wheel pattern of thyroid masses and a benign histology. A review of our institutional database of thyroid punctured under ultrasound guidance, histologically studied between 2003 and 2011, was...

Utilidad del Ultrasonido en el diagnóstico de las hernias inguinales

Objective. To determine the utility of ultrasound study in the diagnosis of inguinal hernias. Methods. Between March 2007 and March 2010, 283 patients aged over 16 years, with suspected inguinal hernia and inconclusive physical examination were studied. Preoperatively, patients underwent US examination of the involved area and findings were subsequently correlated with surgical...

Percepción de la población respecto a los riesgos asociados a los estudios de imágenes

Introduction: In recent years, diagnostic procedures using ionizing radiation have achieved a great boom, although patients are often unaware of the risks they involve. Objectives: To know how is ionizing radiation perceived by the population attending Clínica Dávila, Department of Radiology (DRCD).Methods: A voluntary and anonymous survey was conducted on patients and / or...

Hepatocarcinoma y trombosis portal diagnosticados por ecografía y tomografía computada en pacientes cirróticos chilenos en un hospital público, 2004 - 2011

There is no available data on prevalence of hepatocellular carcinoma (HCC) and portal thrombosis (PT) in Chilean cirrhotic patients. Objectives: To evaluate the development of these entities and the role ultrasound (US) may play as the imaging method of choice in their diagnostic approach. Material and methods: A cohort study of patients with diagnosis of cirrhosis by US or CT...