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排序方式: 共有81条查询结果,搜索用时 15 毫秒
71.
72.
Computed tomographic (CT) appearance of two cases of gastric metastases from retroperitoneal leiomyosarcoma are reported. In both cases tumors infiltrated the gastric wall with endoluminal growth. The use of water-filling technique in opacifying the lumen and distending the gastric wall is also emphasized. 相似文献
73.
C Martinoli C Pastorino M Bertolotto I Rosenberg G Cittadini G Garlaschi L E Derchi 《La Radiologia medica》1992,84(6):785-791
Color-Doppler sonography has recently made it possible to image scrotal vascularity non-invasively. This study was undertaken to determine the normal color-Doppler appearance and distribution of scrotal vessels and to define the technical principles of the examination. Color-Doppler imaging was effective in detecting both funicolar and testicular vessels. Among these, capsular (25/25), trans-testicular (10/25), centripetal and recurrent (25/25) arteries were easily identified. Waveforms analysis allowed to differentiate veins from arteries within testis and to distinguish (8/10) supratesticular (high impedance pattern with absent diastolic flow) from intratesticular arteries (low impedance pattern with high levels of diastolic flow). The optimal color depiction of scrotal vascularity needed the appropriate selection of several imaging parameters to increase detection of low-velocity, low-volume flows within the small testicular vessels. Such parameters included: PRF (ranging 1500 to 600 Hz), wall filters (ranging 25 to 50 Hz), color gain (maximized for optimal sensitivity while avoiding excessive color noise), color vs. echo priority (ranging 70 to 90%) and color persistence (adjusted to high values). In conclusion, color-Doppler imaging is capable of reliably showing the normal anatomy of testicular vessels. It could make a reliable substitute for scintigraphy and continuous wave Doppler in diagnosing scrotal conditions that alter blood flow. 相似文献
74.
L Fedele E Caravelli B Acaia B Bizioli M L Dal Pra C Garlaschi 《Acta Europaea fertilitatis》1990,21(3):147-149
Twenty women with Chlamydia trachomatis genitourinary infection were treated with oral enoxacin 800 mg/day in two divided doses for 12 days starting on day 1 of the menstrual cycle. A physical examination was performed before the start and 28-30 days after the end of the treatment. At the final examination cultures of urethral and endocervical swabs and endometrial samples were negative in all cases, demonstrating that Chlamydia trachomatis infection had been eradicated. No significant results were obtained at serologic evaluation with the indirect immunofluorescence method to show specific IgM, IgG and IgA antibodies. In the four women with subjective symptomatology this was improved by the treatment with enoxacin. Only two patients presented mild side effects (headache, tachycardia, nausea). Enoxacin seems therefore a very effective and well tolerated drug in the treatment of Chlamydia trachomatis genitourinary infection. 相似文献
75.
Cimmino MA Bountis C Silvestri E Garlaschi G Accardo S 《Seminars in arthritis and rheumatism》2000,30(3):180-195
OBJECTIVES: To evaluate the role of magnetic resonance imaging (MRI) in the diagnosis, staging, and follow-up of the rheumatoid wrist. METHODS: A Medline search was performed to identify all publications from the years 1985 to 1999 concerning MRI of the wrist in patients with rheumatoid arthritis (RA). Additional papers were retrieved by scanning the references to the Medline-listed articles. Details of the MRI technique, as well as clinical data, were analyzed and compared. RESULTS: A total of 55 papers were identified. There were considerable variations in imaging sequence, section type, and slice thickness. Erosions and synovitis were the conditions that mostly profited from the adoption of MRI. Although the visualization of erosions was better detailed with MRI than with conventional radiography, erosions were only rarely related to clinical and laboratory parameters. Another advantage was that synovitis imaging, which can be enhanced by contrast agents, was amenable to quantitation. The extent of the synovial surface and the rate of contrast enhancement in a series of consecutive, rapidly acquired images were the most common measures. CONCLUSIONS: MRI of the rheumatoid wrist is a useful technique to ascertain the criteria for diagnosis and progression of RA, and to monitor the effects of treatment. Implementation of a standardized protocol could further increase its value. 相似文献
76.
Soft tissue calcinosis is a common radiographic finding, which may be related to different types of pathological processes. Multimodality imaging, combined with analysis of clinical and laboratory data, plays an important role for the differential diagnosis of these conditions. Conventional radiography is considered the first line approach to soft tissue calcinosis; CT and MRI may provide further information to better characterize calcified deposits. Imaging may help to distinguish metabolic calcification, such as primary tumoral calcinosis and the secondary one (associated with acquired disorders of calcium or phosphate regulation), from dystrophic calcification, which is associated to normal blood values of phosphate. The sedimentation sign typical of tumoral calcinosis has been demonstrated by plain film radiography, CT, MRI, and, more recently, by ultrasonography. Other types of soft tissue calcinosis may have a degenerative, metaplastic or neoplastic origin, and their characterization strongly relies on multimodality imaging. 相似文献
77.
78.
Martinoli C Bacigalupo L Forni GL Balocco M Garlaschi G Tagliafico A 《Seminars in musculoskeletal radiology》2011,15(3):269-280
This article provides an overview of the current use of diagnostic imaging modalities in the evaluation of a heterogeneous group of disorders causing chronic anemias by impaired blood cell production (inherited bone marrow failure syndromes of childhood, aplastic anemia and myelodysplastic syndromes, β-thalassemia) or increased blood cell destruction (sickle cell disease). During the course of these disorders, various musculoskeletal abnormalities can be encountered, including marrow hyperplasia, reversion of yellow marrow to red marrow, growth disturbances, and, occasionally, extramedullary hematopoiesis. Diagnostic imaging may help the clinician to identify specific complications related to either the disease (e.g., bone infarction and acute osteomyelitis in sickle cell disease) or transfusion (e.g., iron overload due to increased hemolysis) and iron chelation (e.g., desferrioxamine-related dysplastic bone changes and deferiprone-related degenerative arthritis) treatments. In this field, magnetic resonance imaging plays a pivotal role because of its high tissue contrast that enables early assessment of bone marrow changes before they become apparent on plain films or computed tomography or metabolic changes occur on bone scintigraphy or positron emission tomography scan. Overall, familiarity with the range of radiological appearances in chronic anemias is important to diagnose complications and establish appropriate therapy. 相似文献
79.
Boesen M Kubassova O Parodi M Bliddal H Innocenti S Garlaschi G Cimmino MA 《European journal of radiology》2011,77(2):202-206
Objective
Traditional methods for assessment of synovial inflammation in rheumatoid arthritis such as clinical examination, immunohistology of bioptic samples, scintigraphy, and radiography have several limitations, including lack of sensitivity, need of invasive techniques, and administration of radioactive material. MRI lacks on standardisation and the data are often analysed using laborious, relatively rigid scoring methods.Materials and methods
This study introduces a standardized computer-aided method for quantitative analysis of MRI of the wrist on a dedicated scanner. Assessment of the synovial inflammation was performed using a semi-automated model-based method in conjunction with patient motion reduction algorithms. Further, the new method was compared with the traditional user-dependent ROI-based technique.Results
The computer-aided technique generated robust and reproducible results. Application of motion reduction algorithms allowed for significant improvements of the signal to noise ratio, which is especially important in the datasets acquired with low-field scanners.Conclusion
The use of the computer software can be beneficial for diagnostic decision in cross sectional as well as longitudinal MRI examinations of the wrist in rheumatoid arthritis. 相似文献80.
Carriero A Beomonte Zobel B Bonomo L Meloni G Cotroneo A Cova M Ettorre GC Fugazzola C Garlaschi G Macarini L Pozzi Mucelli R Sironi S Torricelli P Capaccioli L Zuiani C 《La Radiologia medica》2011,116(7):989-999