The British journal of radiology
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The adoption of a six-fraction regime of radiotherapy for patients with locally advanced carcinoma of the bronchus was followed by the appearance of radiation myelitis in eight cases. These were among a group of 130 patients given radiotherapy with anterior and posterior treatment fields, without shielding of the spinal cord. ⋯ The possible precipitating factors in the eight patients who suffered myelopathy were compared with those in the remaining 62 patients who also received spinal-cord doses calculated to be greater than 3350 cGy (rad). Only one difference was found--the haemoglobin concentration was significantly higher in those who suffered neuropathy compared with those who did not (P = 0.05).
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An essential feature in the assessment of chest films is the comparability of successive examinations. This is particularly important in post-operative care and there are several factors which make the conventional departmental chest film an inappropriate standard for assessment of post-operative chest films. ⋯ Significant differences in transverse cardiac diameter, cardio thoracic ratio, mediastinal width and vertical lung height were found in films taken with the patient supine, AP at inspiration or resting expiration, circumstances in which many chest films are taken in both post-operative and in intensive care patients. The taking of pre-operative films at lung volumes and in postures comparable with those occurring post-operatively is advocated.