EYE RADIATION DOSE SAVING IN HEAD CT EXAMINATIONS USING COPPER-BISMUTH RADIATION SHIELD.

The aim of the present study is to fabricate a new shield with an optimal combination of copper and bismuth to protect the eyes in the head computed tomography (CT) examinations without compromising image quality. Radiation shields with different compositions were constructed. Computed Tomography Dose Index phantom was used to evaluate the effectiveness of shields in dose reduction and their impact on image quality quantitatively.

Synthesis and Application of FeO@Au Composite Nanoparticles as Magnetic Resonance/Computed Tomography Dual-Modality Contrast Agent.

Background: None of the molecular imaging modalities can produce imaging with both anatomical and functional information. In recent years, to overcome these limitations multimodality molecular imaging or combination of two imaging modalities can provide anatomical and pathological information.

Methods: Magnetic iron oxide nanoparticles were prepared by co-precipitation method and then were coated with silica according to Stober method.

The benefits of folic acid-modified gold nanoparticles in CT-based molecular imaging: radiation dose reduction and image contrast enhancement.

X-ray computed tomography (CT) requires an optimal compromise between image quality and patient dose. While high image quality is an important requirement in CT, the radiation dose must be kept minimal to protect the patients from ionizing radiation-associated risks. The use of probes based on gold nanoparticles (AuNPs) along with active targeting ligands for specific recognition of cancer cells may be one of the balanced solutions.

Metastatic hernial sac tumor in a patient with FUO.

The presence of primary or metastatic cancer within a hernia sac is uncommon, which occurs in fewer than 0.5% of all surgically excised sacs (1). This article demonstrates a case of a metastatic pancreatic cancer, one of which presented as an inguinal hernia with fever of unknown origin (FUO).