BACKGROUND To assess patterns of use of abdominal imaging in the emergency department (ED) from 1990 to 2009. METHODS We retrospectively reviewed data on adult ED patients treated between 1990 and 2009 at our university-affiliated quaternary care institution. Examinations were coded by abdominal imaging modality: x-ray, sonography, CT, or MRI. Proportional costs for each imaging modality were...

INTRODUCTION Following X-ray exposure, radiographers receive immediate feedback on detector exposure in the form of the exposure index (EI). PURPOSE To identify whether radiographers are meeting manufacturer-recommended EI (MREI) ranges for routine chest, abdomen and pelvis X-ray examinations under a variety of conditions and to examine factors affecting the EI. METHODS Data on 5000 adult X...

Problem statement: Diagnosis x-ray radiation safety is key in medical examination. The quantity of patient radiation doses is beneficial for radiation protection of the patient. It was proposed that the equation for estimating the output (milliReongent, mR) from x-ray machines. Approach: A was 0.5, 0.8 and 1.0 for single phase, three phases and high frequency x-ray machines, respectively. To co...

8 The advantages of digital radiography (DR) over screen-fi lm (SF) techniques in medical X-ray imaging are well documented in the literature and unanimously acknowledged by radiologists as well as physicists. For the past decade manufacturers have developed a number of commercial digital X-ray imaging systems covering the full range of radiographic applications. The tight requirements in terms...

BACKGROUND AND PURPOSE While considerable attention has been directed to reducing the x-ray dose of individual imaging studies, there is little information available on the cumulative dose during imaging-intensive hospitalizations. We used a radiation-sensitive badge on 12 patients admitted with SAH to determine if this approach was feasible and to measure the extent of their x-ray exposure. ...

Patient dosimetry studies in diagnostic radiology in Nigeria have been on measurement of entrance skin dose and effective dose. Another important and easy to measure radiation dose descriptor that could be used to assess patient dose in radiological procedures is dose area product (DAP). Knowledge of DAP with location and projection of X-ray beam allows direct calculation of organ dose and effe...

The aim of this study was to evaluate the frequency of specific diagnostic methods used for diagnosis of oral pathologies. The sample consisted of 198 patients (98 man and 100 women) with formulated diagnosis, confirmed postoperatively by histopathological verification. In 74.7% of subjects only X-ray diagnostic examination was used. Both X-ray and computed tomography (CT) examinations were use...

Traumatic diaphragm ruptures occur frequently after motor vehicle accidents through penetrating traumas. In 90% of the patients, traumatic diaphragm rupture commonly coexists with other organ injuries. Posteroanterior chest x-ray, computed tomography, magnetic resonance imaging, upper gastrointestinal system contrast-enhanced examinations, and thoraxoscopy/laparoscopy are several modalities whi...