No abstract

We conclude that EVS is an unlikely cause of MS since it is not present in most patients early in the disease and rarely involves more than one extracranial vein. It is likely to be a late secondary phenomenon.

Continuous progress in surgical technique of adjustable gastric banding and the increasing experience of surgeons have decreased the rate of complications. However, because different complications may have the same clinical presentation but require different treatment, to give a definitive diagnosis, the radiologist must be aware of the surgical procedures and possible sequelae.

Contrary to common perception, the advent of third- and fourth-generation scanners has lead to a significant increase in radiation dose to the patient per computed tomography (CT) head scan. With that in mind, a pilot study was designed with the objective of assessing the effectiveness of a dental-style protective bib in reducing the dose to the radiosensitive organs of the neck and thorax. Radiation doses over the thyroid gland and breast were measured with thermoluminenscent dosemeters and an ionization chamber respectively in 110 patients undergoing routine head scans. Half the patients wore the protective bib and collar. With lead protection, the thyroid measurements were reduced by an average of 45 % and the breast measurements by an average of 76 %. Similar results were seen in phantom measurements.

A case of extrathoracic herniation of the lung is described together with the radiological findings in this condition including the role of computed tomography (CT) in its management. In addition a review of the literature is presented which outlines the incidence, classification and clinical features of lung herniae. Some reference is made to possible methods of treatment.

This study was carried out on 968 skull X-rays to determine the incidence of the metopic suture in the Lebanese population. Complete and incomplete metopism was present in 0.82% and 0.93% of cases, respectively, leading to an overall incidence of 1.75%. In both categories, the incidence was relatively higher in males (1.84%) than in females (1.62%). Persons living in rural areas had a higher incidence of complete and incomplete metopism compared to persons living in urban areas, with ratios of 4:1 and 4:2, respectively. Other findings included an absence of frontal sinuses in all but one skull with complete metopism, accessory ossicles in the majority of cases of complete metopism (7/8), and hydrocephalus in one case. Medical records did not reveal any other associated diseases or abnormalities. Despite the low incidence of metopic suture in the Lebanese population, in X-ray diagnosis of fractures of the frontal bone, metopic suture must not be ruled out.

Cephalograms and CT scanograms are close in depicting angular relations of structures, but they differ in the accuracy of imaging linear measurements, because the location and size of an object within the imaged 3D structure varies with both records. Logistic and economic considerations favor the use of cephalographs.

Intra-arterial administration of gemcitabine has a major advantage related to reduced toxicity as increasing the dose through this administration route will eventually result in pancreatic cellular drug target delivery prior to systemic availability. Despite the low number of patients recruited, the clinical results are encouraging and this approach should be tested in a randomised study.