上颌窦癌咽后淋巴结潜在转移的诊断影像及不同照射技术下咽后区域剂量的变化

Q4 Medicine
Y. Kosugi, T. Kawamoto, M. Oshima, Michimasa Suzuki, M. Fujimaki, S. Ohba, F. Matsumoto, N. Shikama, K. Sasai
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引用次数: 1

摘要

我们回顾性分析了55例上颌窦鳞状细胞癌患者的咽后淋巴结(Rp)在诊断影像上的转移频率和同一区域的照射剂量。重新评估预处理图像显示10例患者(18%)存在潜在的Rp转移;9例诊断为短轴≥5mm, 1例诊断为长轴≥10mm。接受MRI或PET-CT检查的患者Rp淋巴结转移率较高(P = 0.090)。Rp转移的中位照射剂量为57.7 Gy, 8/10患者为高剂量无靶向照射。结果未见Rp转移复发。调强放疗时,Rp区不靶向时,Rp区剂量明显低于三维放疗(分别为47.4 Gy和36.0 Gy);P = 0.040)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Potential retropharyngeal lymph node metastasis on diagnostic image and changes in retropharyngeal regional dose depending on the irradiation technique in maxillary sinus cancer
We retrospectively analyzed the frequency of retropharyngeal lymph node (Rp) metastasis on diagnostic images and the irradiation dose to the same area in 55 patients with advanced maxillary sinus squamous cell carcinoma who underwent external radiotherapy and superselective intra-arterial chemotherapy at Juntendo Hospital. Reassessment of pretreatment images revealed potential Rp metastases in 10 patients (18%); 9 who were diagnosed with a minor axis of ≥ 5 mm and 1 diagnosed with a major axis of ≥ 10 mm. Patients who underwent MRI or PET-CT tended to have a high rate of Rp node metastases (P = 0.090). The median irradiation dose for Rp metastasis was 57.7 Gy, and 8/10 patients were irradiated with high doses without targeting. As a result, no recurrence of Rp metastasis was observed. When the Rp region is not targeted during intensity-modulated radiation therapy, the Rp region dose is significantly lower than that of three-dimensional radiation therapy (47.4 Gy vs. 36.0 Gy, respectively; p = 0.040).
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来源期刊
Japanese Journal of Head and Neck Cancer
Japanese Journal of Head and Neck Cancer Medicine-Otorhinolaryngology
CiteScore
0.10
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0.00%
发文量
7
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