AJR. American journal of roentgenology
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Fracture of the hip may result in external rotation of the femoral diaphysis. When this occurs the proximal diaphysis may appear homogeneously dense, particularly in elderly woman. Computed tomography shows that the misleading appearance is due to variations in cortical thickness anteroposteriorly and mediolaterally. This finding is important as this appearance of the femur must be distinguished from a pathologic fracture.
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AJR Am J Roentgenol · Sep 1980
Pulmonary nodules: detection in 1 and 2 cm full lung linear tomography.
Pulmonary nodule detection was evaluated in full lung linear tomography at 1 and 2 cm intervals. Three radiologists independently reviewed 1 and 2 tomograms on 26 patients with 39 pulmonary nodules. Decisions made in each case included: (1) no nodule; (2) definite nodule(s); and (3) suspect nodule(s). ⋯ Of the 39 nodules, 72%-97% were detected as definite and 82%-100% were identified as definite or suspect. Factors relating to nodule detectability and observer performance are discussed. It is recommended that full lung linear tomography be performed at 1 cm intervals.
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AJR Am J Roentgenol · Jun 1980
Cerebral infarction secondary to sickle cell disease: arteriographic findings.
Cerebral angiograms were performed in 14 children with sickle cell disease and clinical findings of cerebral infarction. The angiogram was normal in four patients. Ten patients had abnormalities in the carotid artery or its branches. ⋯ The posterior fossa arteries were not involved in these patients. The risk of angiography is low if appropriate precautions are taken. In these patients the indications for arteriography were to evaluate the effects of hypertransfusion therapy on cerebrovascular disease.