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【目的】通过对比分析合并陈旧性肺结核的非小细胞肺癌患者以CT为基础的淋巴结临床分期(N分期)和术后病理分期,探讨陈旧性肺结核对CT临床N分期的影响?【方法】 回顾性分析2007年10月至2010年8月在本中心接受根治性手术治疗的73 例合并陈旧性肺结核的非小细胞肺癌患者临床资料,对比CT临床N分期和术后病理分期的符合程度;并对CT常规所用的以形态学为主的预测指标(淋巴结直径?肿大淋巴结站数?淋巴结有无融合?淋巴结有无钙化)能否预测肺门纵隔淋巴结转移进行χ2 检验?【结果】 CT对非小细胞肺癌患者淋巴结转移预测的敏感性?特异性?阳性预测值?阴性预测值及准确性分别为61.1%?60.0%?33.3%?82.5%及60.3%,其中特异性(60.0%)明显低于文献报道中CT对非小细胞肺癌患者的总体评估(74% ~ 85%);在对合并有陈旧性肺结核的非小细胞肺癌患者肺门纵隔淋巴结的分站分析中,CT预测显示出较高假阳性率及较低的假阴性率;单因素分析结果显示CT常规的预测指标(淋巴结直径?肿大淋巴结站数?淋巴结有无融合?淋巴结有无钙化)与肺门纵隔淋巴结转移之间没有明显相关性?【结论】 陈旧性肺结核降低了CT预测肺门纵隔淋巴结状态的特异性,是影响CT对非小细胞肺癌患者N分期评估的重要影响因素?CT常规所用的以形态学为主的预测指标并不能有效预测肺门及纵隔淋巴结转移?

目的】 总结胃淋巴瘤的CT表现特征，以提高CT对胃淋巴瘤的诊断价值。【方法】 回顾性分析经病理证实的25例胃淋巴瘤的CT表现，包括胃受累的部位、病灶大体形态、侵犯范围、胃壁厚度、浆膜及胃周脂肪间隙受累情况、强化方式、坏死、其他器官受累、淋巴结肿大情况，并将CT征象与病理类型进行对照分析。【结果】 本组25例胃淋巴瘤病人，均为非霍奇金氏淋巴瘤。大多数发生在胃窦（18/25，72％）和胃体（19/25，76％）。胃壁不均匀增厚，最厚处胃壁厚度为7 mm ～ 60 mm，平均（21．3 ± 12．9） mm，累及范围均大于胃全周的75％。22例（88％）患者病变呈中度均匀强化（与周围肌肉强化程度相近）。21例（84％）有腹腔淋巴结肿大，13例（52％）有肾门下腹膜后淋巴结肿大。绝大多数（19/25，76％）病例合并脾肿大。坏死及溃疡少见，分别只有1例（4％）。3例（3/25，12％）见胃周围侵犯。胃黏膜相关边缘带B细胞淋巴瘤与其他类型淋巴瘤比较，其CT征象具有一定特点，表现为较少累及胃窦，胃壁增厚程度较轻，上述差别均有统计学意义。【结论】 胃淋巴瘤的CT表现具有一定特征性，而且，胃黏膜相关性边缘带B细胞淋巴瘤的CT征象有与其他类型胃淋巴瘤不同的特点，CT对于胃淋巴瘤的诊断和鉴别诊断有一定的帮助。

Objective To explore the relationship between the serum level of placental growth factor (PLGF) and ultrasonic blood flow parameters and pregnancy outcome in patients with late-onset preeclampsia (LOPE). Methods A total of 152 patients with LOPE were selected and divided into the P1 (＜ 12.00 ng/L) group, the P2 (12.00-56.73 ng/L) group, the P3 (＞56.73-89.41 ng/L) group and the P4 (＞ 89.41 ng/L) group according to serum level of PLGF. There were 38 cases in each group. The clinical data, uterine artery pulsatility index (PI), resistance index (RI), peak systolic velocity (S)/ end-diastolic velocity (D) and adverse pregnancy outcome were compared between the four groups. The relationship between PLGF level and clinical characteristics was analyzed by linear regression analysis. The influence of LOPE severity on the relationship between PLGF and ultrasonic blood flow parameters was analyzed by stratified interactive analysis. Multivariate generalized linear mixed effect model was used to analyze the relationship between PLGF level and adverse pregnancy outcome in patients with LOPE. Results The diastolic blood pressure, 24 h urinary protein, PI, RI and S/D decreased significantly with the increase of PLGF level (P＜0.05). The proportion of severe LOPE and systolic blood pressure were significantly higher in the P1 group than those of the other groups (P＜0.05), and the above indexes were influencing factors of the level of PLGF (P＜0.05). The results of stratified interactive test showed that the LOPE severity did not affect the relationship between PLGF and ultrasonic blood flow parameters. There were significant differences in the incidence of HELLP syndrome, fetal growth restriction, fetal distress, premature delivery and neonatal asphyxia between patients with different PLGF levels (P＜0.05). The incidence of preterm delivery was higher in the P1 group than that in the other groups, and the other adverse pregnancy outcomes were higher in the P3 group and P4 group. Conclusion Serum PLGF levels affect uterine artery blood flow parameters and adverse pregnancy outcome in patients with LOPE. [ABSTRACT FROM AUTHOR]

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Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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