Feasibility of non-contrast enhanced magnetic resonance angiography for diagnosis of renal artery stenosis in elderly patients / 南方医科大学学报

<p><b>OBJECTIVE</b>To evaluate the diagnostic efficacy of IFIR-FIESTA technique in detecting renal artery stenosis in elderly patients.</p><p><b>METHODS</b>Twenty-seven aged patients underwent both IFIR-FIESTA and 3D CE-MRA examinations. The imaging quality and renal artery stenosis grades were evaluated. Kappa test was used to assess the consistency between the two methods. With CE-MRA as the reference, the diagnostic sensitivity, specificity, accuracy, PPV and NPV for IFIR-FIESTA were calculated in detecting renal artery stenosis.</p><p><b>RESULTS</b>The images by the two methods were 100% qualified for diagnosis, although the image quality of CE-MRA was significantly better. IFIR-FIESTA and CE-MRA showed excellent consistency in detecting renal artery stenosis. With CE-MRA as the reference, the diagnostic sensitivity, specificity, accuracy, PPV and NPV for IFIR-FIESTA were 97.1%, 100%, 98.1%, 100%, and 95% in detecting renal artery stenosis, respectively.</p><p><b>CONCLUSION</b>IFIR-FIESTA is feasible as a routine examination for detecting renal artery stenosis in elderly patients.</p>

Clinical analysis of parapharyngeal space tumors—Report of 24 cases / 中国耳鼻咽喉头颈外科

Twenty-four patients with parapharyngeal space tumors were treated from 1964 to 1999.There were 11 males and 13 females,ranging in age from 10 to 71 years old.Among 24 patients, benign tumors were 17(70.8%),malignant tumors 7(29.2%).The diagnosis of these tumors were biopsy and CT scaning .Pathologic results showed that the original tumors were salivary gland tissue in 11(45.8%),cranial nerve in 7(29.2%),vascular tissue in 2(8.3%)and the unidentified in 4(16.7%).The surgical approaches for these tumors were neck side incision in 19,through mouth in 5.Results showed that 4 malignant tumors were died in one year,3 cases did not clear;the prognosis of 17 benign tumors were well.