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首页> 外文期刊>Head and neck: Journal for the sciences and specialities of the head and neck >Impact of magnetic resonance imaging versus CT on nasopharyngeal carcinoma: primary tumor target delineation for radiotherapy.
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Impact of magnetic resonance imaging versus CT on nasopharyngeal carcinoma: primary tumor target delineation for radiotherapy.

机译：磁共振成像与CT对鼻咽癌的影响：放射治疗的主要肿瘤靶标勾画。

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BACKGROUND: Our aim was to assess the capacity of CT versus MRI for delineating to the primary tumor extent of nasopharyngeal carcinoma (NPC) in treated patients. METHODS: From December 1997 to April 2000, 258 patients with NPC were enrolled. We focused on the primary tumor extension and the discrepancy between CT and MRI. The delineation of tumor invasion was crucial for determination of the gross tumor volume (GTV) before radiation therapy. RESULTS: A total of 104 patients (40.3%) had intracranial infiltration detected by MRI, whereas CT showed negative findings (p = 6.879 x 10(-11)). Once the pterygopalatine fossa was involved, the chance of intracranial invasion was increased (96.1%). The detectable percentage of pterygopalatine fossa involvement accompanying intracranial invasion was higher with MRI than with CT (96.1% vs 56.9%). CONCLUSIONS: More detailed information about T and N classification of NPC was provided by MRI than by CT, which led to better target delineation for radiotherapy.
机译：背景：我们的目的是评估CT和MRI描绘出治疗患者鼻咽癌（NPC）原发肿瘤范围的能力。方法：1997年12月至2000年4月，共收治258例NPC患者。我们的重点是原发肿瘤的扩展以及CT和MRI之间的差异。肿瘤浸润的轮廓对于放射治疗前确定总肿瘤体积（GTV）至关重要。结果：共有104例（40.3％）的患者被MRI发现颅内浸润，而CT显示阴性（p = 6.879 x 10（-11））。一旦累及翼ery窝，颅内侵犯的机会就会增加（96.1％）。 MRI检查发现，伴有颅内侵犯的翼pal窝受累百分比高于CT检查（96.1％vs 56.9％）。结论：MRI提供的NPC T和N分类信息比CT提供的更为详细，从而可以更好地确定放射治疗的靶标。

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