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排序方式: 共有131条查询结果,搜索用时 15 毫秒
1.
Cromb Amandine Le Loarer Franois Sitbon Maxime Italiano Antoine Stoeckle Eberhard Buy Xavier Kind Michle 《European radiology》2020,30(5):2413-2424
European Radiology - The strongest adverse prognostic factor in myxoid/round cell liposarcomas (MRC-LPS) is the presence of a round cell component above 5% within the tumor bulk. Its identification... 相似文献
2.
Computed tomography of mediastinal lymph nodes in nonsmall cell lung cancer. A new approach based on the lymphatic pathway of tumor spread 总被引:2,自引:0,他引:2
J N Buy M A Ghossain F Poirson M Bazot E Meary L Malbec J Rochemaure B Lebeau J Prudent F Capron 《Journal of computer assisted tomography》1988,12(4):545-552
Computed tomography was used to evaluate mediastinal lymph nodes in 97 patients with nonsmall cell lung cancer. All patients had thorough surgical-pathological determination of mediastinal node status. Twenty-three patients were found to have metastatic lymph nodes. The usual lymphatic pathways of tumor spread into the mediastinum were defined using the node mapping scheme suggested by the American Thoracic Society. We considered mediastinal nodes abnormal when the short axis of the largest mediastinal node in the lymphatic drainage territory of the cancer was greater than or equal to 10 mm and the difference between this node and the largest node in the other territories is greater than 5 mm. The sensitivity was 78%, the specificity 99%, the positive predictive value 95%, the negative predictive value 94%, and the accuracy 94%. Comparing our method to those that used the size criterion alone, the number of false positives was reduced. 相似文献
3.
Preoperative assessment of the extension of rectal carcinoma: correlation of MR, surgical, and histopathologic findings 总被引:1,自引:0,他引:1
C Guinet J N Buy A Sezeur H Mosnier M Ghossain M Malafosse M Guivarc'h D Vadrot J Ecoiffier 《Journal of computer assisted tomography》1988,12(2):209-214
Nineteen patients with rectal carcinoma were evaluated prospectively. The extent of tumor and the relationship of the tumor to the levator ani muscle were studied as this determines the choice of the surgical procedure (abdominoperineal resection versus low anterior resection). Peroperative assessment and detailed evaluation of the pathologic specimens were correlated with magnetic resonance (MR) features. Magnetic resonance staging and surgical findings were at variance in four of 15 cases (27%). Magnetic resonance had sensitivities and specificities of 75 and 100% in the detection of perirectal growth. Magnetic resonance demonstrated invasion of adjacent pelvic side wall and sacrum in two of two cases. The comparison with TNM classification demonstrated that MR correctly staged 15 of 19 cases (79%). This study shows that MR is a good examination to evaluate the involvement of perirectal fatty tissues and adjacent structures. The low prevalence of involved lymph nodes in our cases prevents significant positive predictive values. Nevertheless, MR can help to select patients for local excision or for preoperative radiotherapy. 相似文献
4.
Michel A. Ghossain Jean-Noël Buy Alain Ruiz Denis Jacob Catherine Sciot Danile Hugol Dominique Vadrot 《Journal of magnetic resonance imaging : JMRI》1998,8(6):1203-1206
A case of hyperreactio luteinalis in an otherwise normal pregnancy is reported. Ascites was present, but no peritoneal implants or adenopathy were seen. Findings that would have suggested the correct diagnosis are the symmetrical and bilateral pattern of the mass, as well as the rather uniform size of the loculi, which were 1 to 3 cm in diameter. 相似文献
5.
Multiple interventional radiology techniques are available for percutaneous ablation of bone tumors: alcohol, laser, radiofrequency, microwave, ultrasound, and cryogenic ablation. Several indications have already been validated, including radiofrequency ablation of osteoid osteoma and bone metastases, with results superior to conventional treatment. More indications should be added over the coming years. The purpose of this article is to review the principles of the different ablation techniques, summarize their respective indications and results and discuss their implementation and the eventual combination with cementoplasty techniques. 相似文献
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