In her article in the May/June 1984 issue of AJNR, Dr. LeMay [1] provides a comprehensive review of the computed tomographic (CT), pneumoencephalographic , and radiographic changes of the brain and skull as seen in the aging population. She concludes that further understanding of the involutionary changes in the brain may require other, more sensitive methods of investigation than are now avail...

Tumor-associated gastroparesis, though reported in association with various malignancies, is rare in patients with cholangiocarcinoma. We report a 55-year-old woman who presented with dysphagia and recurrent vomiting. Esophagogastroduodenoscopy revealed dilated stomach and excess residue without organic obstruction. 99mTc sulfur colloid solid gastric emptying study, radio-opaque marker gut tran...

The antimony sulphide (AnS) solar cell is a relatively new photovoltaic technology. Because of its attractive material, optical, and electrical qualities, Sb2Se3 an excellent absorption layer in cells, with conversion efficiency less than 8%. purpose this research to determine the best parameter for increasing efficiency. This focused on influence absorber defect density n/i interface performan...

A method of liver scanning based on a subtraction technique with simultaneous use of two tracers, 67Ga-citrate and 99mTc-sulfur colloid, is described. The subtraction technique isolates radiogallium uptake by the space-occupying hepatic lesions by subtracting interference due to tracer uptake by healthy hepatic tissue. In 82 patients, the method yielded a correct result in 94.7% of the positive...

Accessory spleen (AS) is common anomaly, and 20% of AS cases occur in the pancreatic tail. An intrapancreatic AS can be difficult to distinguish from pancreatic neoplasms. In most cases, an AS is described as a hypervascular and solitary tumor, but an AS sometimes takes other forms. We herein report a rare case of an intrapancreatic AS with temporal changes in its appearance after splenectomy, ...

We used technetium-99m antimony colloid to visualize the bone marrow of the head of the femur within twenty-four hours after interruption of the blood supply by subcapital osteotomy and section of the ligamentum teres in thirteen rabbits and within twenty-four hours after a subcapital fracture in thirty patients. Of the rabbits, all showed loss of marrow radioactivity over the affected femoral ...