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741.
High-resolution, real-time sonography of the rotator cuff was performed in 51 shoulders, and the results were correlated with findings obtained during subsequent surgery. Prospective sensitivity of sonography in detection of a tear was 100%; specificity, 75%; and accuracy, 92%. Retrospective estimation of tear size on sonograms correlated well with the intraoperative measurements for small and moderate lesions. Large lesions were often underestimated sonographically. Retrospectively, partial tears were correctly diagnosed in seven patients, and bursal thickening was recognized in 17 patients. Sonography of the shoulder proved to be an accurate, noninvasive method for the diagnosis of complete rotator cuff tears. It is useful for estimating tear size and location and may be useful in recognizing partial tears. 相似文献
742.
Leeson MD; Cacayorin ED; Iliya AR; Hodge CJ; Culebras A; Collins GH; Kieffer SA 《Radiology》1985,156(2):397-402
Dynamic, rapid sequence, axial computed tomography (CT) was employed to evaluate the extracranial common and internal carotid arteries in 17 patients with clinical histories suggesting recent or remote ischemia in the territory supplied by the internal carotid artery. The CT findings were correlated with arteriographic observations and with gross and histologic evaluations of endarterectomy specimens. Areas of arterial wall thickening were evaluated on CT scans with regard to both degree of thickening and radiographic density (attenuation). The degree of vessel wall thickening secondary to atheromatous plaque demonstrated on CT scans corresponded closely to the severity of luminal compromise seen on arteriograms. Isodense or mildly hypodense focal mural thickening noted on CT scans of seven endarterectomy specimens proved to be primarily fibrotic (simple) atheromatous plaque on gross and histologic examination. Areas of markedly lucent focal mural thickening on CT scans of 11 specimens all demonstrated varying amounts of subintimal hemorrhage within loosely arranged and rather acellular (complex) atheromatous plaques on pathologic examination. While arteriography provides information regarding the status of the arterial lumen, CT offers the potential of accurate characterization of pathologic changes in the wall of the extracranial carotid arteries in patients with symptoms of cerebral ischemia. 相似文献
743.
All surviving infants from nine neonatal intensive care units (NICU) in a southern city and county of Taiwan were followed up and assessed at 2 y of age if they had a birthweight of less than 2000 g and were born between February 1, 1993 and January 31, 1994. The assessments included: neurological, growth and general health. A comparison group of normal birthweight and full-term infants without congenital anomalies, matched by birth month and sex to the NICU survivors was also studied with respect to the same outcome measures. A developmental delay (either a severe neurological deficit or Mental Development Index <68 or Psychomotor Development Index <68) was present in 21 (15.4%) of the cases, compared to 3 (2.5%) of the controls (P < 0.0004). Significant correlates of developmental outcome for the cases were birthweight, gestational age, and maternal education. The very low birthweight (VLBW) children (<1500 g) in our study cohort had a comparatively higher incidence of severe neurological deficits (and cerebral palsy) than that reported by other similar studies in developed countries. The incidence of abnormal neurodevelopmental outcome remained high in the graduates of NICU at 2 y of age, compared to that in normal controls. The findings have important implications in future health policy making regarding postnatal management of the surviving infants of NICU in developing countries such as Taiwan. 相似文献
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748.
A four-lumen, 20-F surgical gastrojejunostomy tube designed to incorporate separate lumens for both jejunal feeding and gastric decompression was modified for guide-wire use. This modification permits radiologic rather than intraoperative tube placement. The tube was successfully placed in six patients. Slow gastric leakage that developed at the stoma site in one patient immediately after tube insertion resolved after 24 hours. No catheter dislodgments or other complications occurred. At 4-month follow-up, five patients had fully functional tubes; the sixth patient had died with a functional tube. 相似文献
749.
750.
Williams RJ; Henderson LM; Naidoo Y; Cassim B; Elson CJ; Bhoola KD 《Rheumatology (Oxford, England)》1997,36(4):420-425
Polymorphonuclear leucocytes (PMNs) from the synovial fluid of patients
with rheumatoid arthritis (RA) showed reduced tissue kallikrein and kinin
immunoreactivity in comparison with blood PMNs from healthy individuals as
judged visually using confocal microscopy. Similarly, synovial fluid PMNs
exhibited reduced tissue kallikrein immunoreactivity as compared with blood
PMNs from the same RA patients. Blood PMNs stimulated to degranulate in
vitro also displayed less immunostaining for tissue kallikrein and kinin
than non-stimulated PMNs. By contrast, no difference in kininogen
immunostaining was detected between RA synovial fluid PMNs and blood PMNs
from healthy people. It is considered that the results support the
hypothesis that tissue kallikrein, released from the granules of RA
synovial fluid PMNs, cleaves the kinin moiety from multifunctional
kininogen protein on the surface of the PMNs.
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