abstractbackground: delivering the radiation dose to the target volume and minimizing the dose to normal tissues are the main objectives in radiotherapy. the aim of our study is to enhance the contrast of the portal image to increase the accuracy of delineation of the organs in the irradiation field.   methods: the software was written based on local enhancement of the pixel values in image mat...

Leptomeningeal metastasis is known to occur as an initial presentation in solid tumors. The of meningeal symptoms before the diagnosis primary tumor seen 10-20% cases. Though sophisticated radiological imaging available, Cerebrospinal Fluid (CSF) analysis for cells remains gold standard method diagnosis. Incidence brain from carcinoma breast about 3-8% only.
 We present a case young female...

Recent advances in imaging technology have led to increased detection of Small Renal Masses (SRMs). Nephron-Sparing Surgery (NSS) is considered the gold-standard treatment for most SRMs, but renal cryoablation is recommended in certain comorbid populations. The current literature indicates cryoablation offers similar long-term outcomes and decreased perioperative complication rates compared to ...

We discuss the use of a noninvasive in vivo optical technique, diffuse reflectance spectroscopic imaging with oblique incidence, to distinguish between benign and cancer-prone skin lesions. Various image features were examined to classify the images from lesions into benign and cancerous categories. Two groups of lesions were processed separately: Group 1 includes keratoses, warts versus carcin...

The prospects for imaging x rays at energies from 10 to 40 keV with grazing incidence optics are explored. The scientific rationale and existing laboratory measurements are reviewed. Measurements of reflectivity using possible mirror materials are described. Iridium-coated float glass gives an improved performance over gold by the factor predicted by theory but both had a lower absolute level. ...

CONTEXT Clinical surveys have revealed that incidental detection of renal cell carcinoma is rising because of increased use of imaging procedures. OBJECTIVE To examine incidence, mortality, and survival trends of renal cell and renal pelvis cancers by age, sex, race, and tumor stage at diagnosis. DESIGN Calculation of age-adjusted incidence and mortality rates, along with 5-year relative su...

Multivariate optical computing (MOC) is a method of performing chemical analysis using a multilayer thin-film structure known as a multivariate optical element (MOE). Recently we have been advancing MOC for imaging problems by using an imaging MOE (IMOE) in a normal-incidence geometry and employing normalization by the 1-norm. There are several important differences between the previously descr...

OBJECTIVES To investigate the incidence, distribution and radiological characteristics of dural ossification (DO) associated with ossification of ligamentum flavum (OLF) in the thoracic spine. DESIGN A retrospective radiographical analysis. SETTING This study was conducted at a single institution in China. PARTICIPANTS 53 patients with OLF who underwent posterior decompression surgery bet...

The objective of present study is to evaluate mechanisms and causes head trauma, factors influencing management pediatric minor highlight decision making processes in diagnostic imaging as well searching for preventive measures trauma. Children younger than two years age who were admitted emergency department one-year period due trauma included the study. To be inside or outside house did not s...

BACKGROUND AND PURPOSE Occasionally we have observed anecdotal cases of asymptomatic hyperintensities on diffusion-weighted MR (DW-MR) examinations of the brain of patients who previously underwent routine cerebral angiography. These observations, as well as MR imaging and transcranial Doppler data in the literature suggesting a high rate of procedure-associated emboli, raise concern regarding ...