Some peculiar lesions of traumatic brain injuries encountered in our practice with brief discussion-imaging manuscript

The advent of neuroimaging like computed tomography and magnetic resonance imaging has facilitated the diagnosis of traumatic brain injuries. Emphasizing certain diagnostic features of some peculiar traumatic brain injuries. The following lesions of traumatic brain injuries were pictorially depicted, namely Tension pneumocephalus, Blow out orbit, Bilateral subacute subdural haematomata, Acute-onchronic subdural haematoma, Middle cranial fossa acute epidural haematoma, Traumatic basal ganglial haematoma and Acute intra-ventricular haematoma. Mount Fuji sign is typical of tension pneumocephalus while herniation of extra-ocular muscles into the maxillary sinus is diagnostic of blowout orbit. Rabbit ear appearance is observable in bilateral subacute subdural haematomata

Effect of delayed film processing and milliamperage changes on image quality

A study of the effect of delayed clinical processing and milliamperage changes on image quality was carried out at the Radiology Department; University of Calabar; Nigeria; using filmstrips exposed to x-radiation at milliamperage (mA) values of 50; 100; 200; 300; 400 and 500. Exposed film strips were processed over varied post exposure; peprocessing keeping times ranging from 0 hours (control) to the 18th day. Results show progressive decrease in optical densities measured on the film; with prolonged pre-processing keeping time; and this is more marked at low (50) mA procedures; and is less in high (500) mA procedures; at which mA also; the onset was highly delayed (commencing about the 12th hour). The implication of this in a developing economy is discussed

Assessment of chest radiographs for quality assurance and radiation protection

A retrospective study of 1000 chest radiographs randomly selected from various government and private owned hospitals in the southern part of Nigeria covering a period of twenty years was carried out. Accuracy in patient positioning; beam collimation and identification of radiographs were assessed as indicators for quality assurance and radiation protection. The result showed that for male 59 were rotated and 41 were not. For the female; 60 were rotated while 39 were not. 95.30 radiographs were inadequately collimated; and 69.30 were properly identified. This suggests poor quality and exposure of patients to unnecessary radiation though more attention was paid to identification of radiographs