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排序方式: 共有708条查询结果,搜索用时 15 毫秒
621.
Patellar sleeve fracture: demonstration with MR imaging 总被引:9,自引:0,他引:9
622.
Caroli disease: high-frequency US and pathologic findings 总被引:5,自引:0,他引:5
Marchal GJ; Desmet VJ; Proesmans WC; Moerman PL; Van Roost WW; Van Holsbeeck MT; Baert AL 《Radiology》1986,158(2):507-511
Three infants with nonobstructive bile duct dilatation (Caroli disease) are described. The bile duct pathology was associated with autosomal recessive polycystic kidney disease in two patients and with severe destruction of the renal parenchyma of unknown origin in the other. Sonograms of the liver showed, besides bile duct dilatations, intraluminal bulbar protrusions, bridge formation across dilated lumina, and portal radicles partially or completely surrounded by dilated bile ducts. Liver biopsy was performed in two patients, and in one patient, the biopsy sample confirmed the findings noted on sonograms. These findings support the hypothesis that the normal embryogenesis of intrahepatic bile ducts is arrested in the pathogenesis of this disease. 相似文献
623.
Magnetic resonance imaging in the diagnosis and staging of renal and perirenal neoplasms 总被引:2,自引:0,他引:2
Hricak H; Demas BE; Williams RD; McNamara MT; Hedgcock MW; Amparo EG; Tanagho EA 《Radiology》1985,154(3):709-715
Thirty-one adult patients underwent magnetic resonance (MR) imaging after CT scans had demonstrated findings consistent with renal cell carcinoma. MR images were interpreted prospectively and independently of the CT findings. Because the CT scanning was performed at multiple institutions by many examiners, this study was not a direct comparison of CT versus MR. The preoperative diagnoses and staging of the neoplasms, as judged by MR, were compared with those obtained at laparotomy (n = 28), autopsy (n = 1), or biopsy (n = 2). Correct preoperative diagnoses were rendered in 31 patients (100%) on the basis of MR findings. The anatomic staging of 27 renal cell carcinomas was correctly performed by MR in 26 patients (86%). When compared with results of previous studies of the value of CT in the diagnosis and staging of renal neoplasms, MR appears to have several advantages in determination of the origin of the mass; the evaluation of vascular patency; the detection of perihilar lymph node metastases; and the evaluation of direct tumor invasion of adjacent organs. MR is sensitive in determining the extent of tumor thrombus and in evaluating invasion of the inferior vena caval wall. MR should assume an important role in the diagnosis and staging of renal neoplasms. 相似文献
624.
625.
SL Den Boer SGMA Pasmans NM Wulffraat NL Ramakers‐Van Woerden MT Bousema 《Acta paediatrica (Oslo, Norway : 1992)》2010,99(5):781-783
Henoch Schönlein Purpura (HSP) is usually mild and self‐limiting, but it may be accompanied by severe complications such as bullous lesions. We describe the use of systemic prednisone in two patients with bullous lesions in HSP. The first patient presented with progressive bullous lesions distributed on the limbs that evolved into painful ulcers and necrosis. These were further complicated by a secondary skin infection. He then received 1 mg/kg/day prednisone after 9 days. Patient 2, a 10‐year‐old boy, presented with HSP and bullous lesions and received intravenous prednisone 1 mg/kg/day within 48 h after appearance of the bullous lesions. He recovered rapidly without any complications. Conclusion: To reduce the severity of HSP related bullous lesions and their sequelae, we would propose starting prednisone (1 mg/kg/day) as soon as the bullae appear. In addition to prednisone, analgesics and specialist skin care for bullae should be started. 相似文献
626.
T Gozzi CE Flück D L’Allemand MT Dattani PC Hindmarsh PE Mullis 《Acta paediatrica (Oslo, Norway : 1992)》2010,99(4):569-574
Aim: An impressive discrepancy between reported and measured parental height is often observed. The aims of this study were: (a) to assess whether there is a significant difference between the reported and measured parental height; (b) to focus on the reported and, thereafter, measured height of the partner; (c) to analyse its impact on the calculated target height range. Methods/Results: A total of 1542 individual parents were enrolled. The parents were subdivided into three groups: normal height (3–97th Centile), short (<3%) and tall (>97%) stature. Overall, compared with men, women were far better in estimating their own height (p < 0.001). Where both partners were of normal, short or tall stature, the estimated heights of their partner were quite accurate. Women of normal stature underestimated the short partner and overestimated the tall partner, whereas male partners of normal stature overestimated both their short as well as tall partners. Women of tall stature estimated the heights of their short partners correctly, whereas heights of normal statured men were underestimated. On the other hand, tall men overestimated the heights of their female partners who are of normal and short stature. Furthermore, women of short stature estimated the partners of normal stature adequately, and the heights of their tall partners were overestimated. Interestingly, the short men significantly underestimated the normal, but overestimated tall female partners. Conclusion: Only measured heights should be used to perform accurate evaluations of height, particularly when diagnostic tests or treatment interventions are contemplated. For clinical trails, we suggest that only quality measured parental heights are acceptable, as the errors incurred in estimates may enhance/conceal true treatment effects. 相似文献
627.
H. J. Koornhof FRCPath M. Isaäcson MD DSc J. Saunders MT C. J. van Wyk DSc A. F. Kotzé BPharm MSc I. C. Rosekilly BPharm † T. A. du Plessis DSc‡ 《Journal of clinical pharmacy and therapeutics》1994,19(4):249-256
This study was undertaken to determine the effect of low-dose gamma irradiation on aseptically admixed total parenteral nutrition (TPN) solutions to which large inocula of three test bacterial species were added. Microbiological safety levels were quantified in terms of sterility assurance levels (SALs), indicating the probability of contamination occurring expressed as 10-n. The radiation sensitivity (D10 values) of test bacteria in TPN solutions inoculated with a series of bacteria recognized as common contaminants of these products, was determined. Attainable SALs of TPN solutions containing test bacteria were subsequently calculated from the D10 values. Results showed that a minimum absorbed radiation dose as low as 1.5 kGy improved the SAL of aseptically prepared TPN solutions from a probability value of 10-3 to a value of less than 10-8 for the microorganisms investigated. At an absorbed dose as high as 8.3 kGy, no measurable changes in amino acid, electrolyte, glucose and lipid components of the solutions were detected. These findings have important implications for the enhancement of microbiological safety levels of aseptically prepared intravenous fluids in general. 相似文献
628.
Effects of taurine on rat aorta in vitro 总被引:3,自引:0,他引:3
The effects of taurine on vascular tone of isolated thoracic aortic rings were investigated. We have observed that: 1) taurine is able to induce reduction of the basal contractile tone; 2) taurine exerts a relaxing action in artery segments preconstricted with high potassium medium noradrenaline; 3) the effect of taurine is either dependent on endothelium, nor mediated by adrenoceptors or muscarinic cholinoceptors; 4) in vessels with basal tone or in those preconstricted with noradrenaline, the presence of endothelium reduces the taurine-induced relaxation; 5) the actions of taurine are independent of extracellular calcium; 6) taurine increases the vasodilatation induced by a perfusion with a calcium-free medium. The physiological role of taurine in the maintenance of vascular tone in normal and pathological situations is discussed. 相似文献
629.
Parry–Romberg syndrome: A possible association with borreliosis 总被引:1,自引:0,他引:1
MT ahin† S Bari‡ A. Karaman§ 《Journal of the European Academy of Dermatology and Venereology》2004,18(2):204-207
Progressive facial hemiatrophy or Parry-Romberg syndrome is a rare entity characterized by unilateral atrophy of the skin, subcutaneous tissue and the underlying bony structures. This syndrome has many features of linear scleroderma 'en coup de sabre' but is distinguished by more extensive involvement of the lower face with only slight cutaneous sclerosis. The onset typically occurs in childhood or young adult years. The aetiology of the condition is unknown. A case of progressive hemifacial atrophy occurring in a 30-year-old woman is reported, in which the aetiology is thought to be Lyme disease, a borrelial infection first recognized in 1975 that has since become the most commonly reported vector-borne disease in the world. No sure link is established between these two disease states, but their coincident occurrence in this patient is noted. We hypothesize that the aetiology of Parry-Romberg syndrome involves borreliosis. 相似文献
630.