RESUMEN
RATIONALE AND OBJECTIVES: The suitability of using an image console monitor for interpretation of adult portable chest radiographs was evaluated with receiver operating characteristic (ROC) analysis and subjective techniques. METHODS: Radiologists read 80 chest images, once on a display monitor and once on computed radiography film, for the presence or absence of pneumothorax or atelectasis. Judgments of correct or incorrect positions of tubes and lines were reported, and total viewing time was recorded. RESULTS: A statistically significant difference was found in favor of monitor reading for detection of pneumothoraces. Atelectasis detection also was higher with monitor reading, but the difference did not reach statistical significance. Tube/line judgments were equivalent for both modes. Total viewing time was approximately 1 minute longer per image with the monitor. CONCLUSIONS: Viewing computed radiography images on a workstation monitor does not seem to affect diagnostic accuracy compared with film viewing. Preset image defaults tailored to the individual radiologist could decrease total viewing time to acceptable levels.
Asunto(s)
Procesamiento de Imagen Asistido por Computador , Radiografía Torácica , Adulto , Humanos , Neumotórax/diagnóstico por imagen , Atelectasia Pulmonar/diagnóstico por imagen , Curva ROCRESUMEN
Development of spontaneous hemothorax without predisposing conditions is extremely rare. We report a young man with a history of a seizure disorder who presented to the emergency department with spontaneous hemothorax. Exploratory thoracotomy evacuated 2,000 ml of old blood. No source of hemorrhage was identified. To our knowledge, this is the first report of spontaneous hemothorax proved by thoracotomy.
Asunto(s)
Hemotórax , Adulto , Hemotórax/diagnóstico por imagen , Hemotórax/terapia , Humanos , Masculino , RadiografíaRESUMEN
Reduction mammoplasty has become an increasingly common surgical procedure in the United States. Because the technique generally involves repositioning of the nipple-areolar unit with infolding of a vascularized tissue pedicle, epidermal inclusion cysts may develop after the procedure. The authors encountered three cases of epidermal inclusion cysts after reduction mammoplasty and describe the associated mammographic and sonographic characteristics. The authors found that stereotaxic needle biopsy is useful for the diagnosis of these lesions.