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首页> 外文期刊>Radiology >Lymph-node metastases: efficacy for detection with helical CT in patients with gastric cancer.
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Lymph-node metastases: efficacy for detection with helical CT in patients with gastric cancer.

机译：淋巴结转移：螺旋CT检测在胃癌患者中的功效。

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摘要

PURPOSE: To determine the efficacy of helical computed tomography (CT) in the detection of lymphadenopathy in patients with gastric cancer. MATERIALS AND METHODS: Helical CT (5-mm section thickness, 5-mm/sec table incrementation) was performed in 58 patients (39 men, 19 women; mean age, 63.8 years) with gastric cancer; 1,082 lymph nodes (138 positive, 944 negative for metastasis) were resected at surgery. Findings at CT and resection were compared. Sensitivity for detecting lymph nodes was evaluated according to nodal size and presence of metastasis. RESULTS: Seven (1.1%) of 649 lymph nodes 1-4 mm, 160 (45.1%) of 355 nodes 5-9 mm, and 56 (72%) of 78 nodes larger than 9 mm were detected at CT. For nodes of at least 5 mm, sensitivity for detecting metastasis-positive nodes (79 [75.2%] of 105 nodes) was higher than that for detecting metastasis-negative nodes (137 [41.8%] of 328; P < .01). Differences between positive and negative nodes in CT attenuation (110 HU +/- 25 vs 66 HU +/- 32) and short-to-long axis ratios (0.81 +/- 0.15 vs 0.57 +/- 0.15; P < .001) were significant. CONCLUSION: Helical CT is effective for detection of metastatic lymphadenopathy from gastric cancer. CT attenuation and lymph-node configuration aid in diagnosis of malignant adenopathy.
机译：目的：确定螺旋CT（CT）在胃癌患者淋巴结病检测中的功效。材料与方法：对58例胃癌患者（男39例，女19例;平均年龄63.8岁）进行了螺旋CT（5毫米厚，表增加5毫米/秒）。手术切除了1,082个淋巴结（138例阳性，944例转移阴性）。比较了CT和切除的发现。根据淋巴结大小和转移的存在，评估检测淋巴结的敏感性。结果：在CT上检测到649个1-4毫米淋巴结中的七个（1.1％），355个5-9毫米淋巴结中的160个（45.1％）和78个大于9 mm的淋巴结中的56个（72％）。对于至少5 mm的淋巴结，检测转移阳性淋巴结的敏感性（105个淋巴结中的79个[75.2％]）高于检测转移淋巴结阴性的敏感性（328个淋巴结中的137 [41.8％]; P <0.01）。 CT衰减的正负节点之间的差异（110 HU +/- 25 vs 66 HU +/- 32）和长短轴比率（0.81 +/- 0.15 vs 0.57 +/- 0.15; P <.001）很重要。结论：螺旋CT对胃癌转移性淋巴结肿大的诊断有效。 CT衰减和淋巴结形态有助于诊断恶性腺病。

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