PubMed · 13236869
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Z FEJFAR. 1954-12-20. [Recognizing mitral insufficiency].. https://pubmed.ncbi.nlm.nih.gov/13236869/
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UNLABELLED: Our aim was to determine whether the chest radiograph appearance at 7 days predicted chronic lung disease development (oxygen dependency at 36 weeks post-menstrual age) or death before discharge and if it was a better predictor than readily available clinical data. Two consecutive studies were performed. In both, chest radiographs taken at 7 days for clinical purposes were assessed using a scoring system for the presence of fibrosis/interstitial shadows, cystic elements and hyperinflation and data were collected regarding gestational age, birth weight, use of antenatal steroids and post-natal surfactant and requirement for ventilation at 7 days. Oxygenation indices were calculated in the first study (study A) at 120 h and in the second (study B) at 168 h. In study A, there were 59 infants with a median gestational age of 26 weeks (range 24 to 28 weeks) and in study B, 40 infants with a median gestational age of 27 weeks (range 25-31 weeks). In both studies, infants who developed chronic lung disease had a significantly higher total chest radiograph score, with a higher score for fibrosis/interstitial shadowing than the rest of the cohort. Infants who died before discharge differed significantly from the rest with regard to significantly higher scores for cysts. In both studies, the areas under the receiver operator characteristic curves with regard to prediction of chronic lung disease were higher for the total chest radiograph score compared to those for readily available clinical data. CONCLUSION: In infants who require a chest radiograph for clinical purposes at 7 days, the chest radiograph appearance can facilitate prediction of outcome of infants born very prematurely.
STUDY DESIGN: Case report. OBJECTIVES: To report the development of high intensity zones in the lumbar posterior anulus on axial loaded magnetic resonance imaging. SUMMARY OF BACKGROUND DATA: The high intensity zone is seen in the posterior anulus of degenerate lumbar discs on T2-weighted magnetic resonance images and represents a radial anular tear. Although the specificity of the high intensity zone for a concordantly painful anular tear in patients undergoing discography for discogenic low back pain is high, the sensitivity of magnetic resonance imaging for identification of discographically demonstrated anular tears is approximately 30%. METHODS: A 55-year-old female with chronic low back pain was imaged with lumbar spine magnetic resonance imaging before and following axial loading with an magnetic resonance imaging-compatible compression device. RESULTS: The nonloaded study demonstrated degeneration of the lower four lumbar discs. Following axial loading, posterior central high intensity zones were identified at the L2-L3 and L4-L5 levels. CONCLUSION: High intensity zones developed on axial loaded magnetic resonance imaging of the lumbar spine. We postulate that lumbar spine magnetic resonance imaging with axial loading may increase the sensitivity of magnetic resonance imaging for the detection of high intensity zones.