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首页> 外文期刊>Radiology >Laryngeal carcinoma after radiation therapy: correlation of abnormal MR imaging signal patterns in laryngeal cartilage with the risk of recurrence.
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Laryngeal carcinoma after radiation therapy: correlation of abnormal MR imaging signal patterns in laryngeal cartilage with the risk of recurrence.

机译:放射治疗后的喉癌:喉软骨中MR影像信号异常与复发风险的相关性。

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摘要

PURPOSE: To correlate abnormal magnetic resonance (MR) imaging signal patterns in cartilage with the effectiveness of radiation treatment. MATERIALS AND METHODS: Eighty previously untreated patients underwent MR imaging and radiation therapy with a curative intent. Cartilage was considered to have an abnormal signal pattern if it had intermediate signal intensity on T1-weighted spin-echo (SE) MR images and high signal intensity on T2-weighted SE MR images. The minimum follow-up was 2 years. RESULTS: Abnormal MR imaging signal patterns of the thyroid cartilage (P < .001; P < .04) were more ominous than those of other cartilage. Abnormal signal patterns in cartilage of patients with small tumors (< 5 cm3 and especially < 1 cm3) were less significant. Abnormal signal patterns in cartilage combined with a large tumor (> 5 cm3) worsened the prognosis significantly (P < .05). CONCLUSION: Abnormal MR imaging signal patterns in cartilage may not indicate a poor prognosis in every case. Abnormal signal intensity in the thyroid cartilage combined with a tumor volume of > 5 cm3, however, appears to indicate an adverse prognosis with regard to tumor recurrence.
机译:目的:使软骨中的异常磁共振(MR)成像信号模式与放射治疗的有效性相关联。材料与方法:80例先前未接受治疗的患者均进行了MR成像和放射治疗,具有治愈性。如果软骨在T1加权自旋回波(SE)MR图像上具有中等信号强度,而在T2加权SE MR图像上具有高信号强度,则认为软骨具有异常信号模式。最小随访时间为2年。结果:甲状腺软骨的MR成像信号异常(P <.001; P <.04)比其他软骨更不祥。小肿瘤(<5 cm3,尤其是<1 cm3)患者软骨中的异常信号模式不太明显。软骨异常信号模式与大肿瘤(> 5 cm3)合并可明显恶化预后(P <.05)。结论:软骨中的MR成像信号异常可能并不表示每种情况下的预后都较差。然而,甲状腺软骨中异常信号强度与> 5 cm3的肿瘤体积相结合,似乎预示着肿瘤复发的不良预后。

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