CT能谱曲线鉴别诊断脊柱肿瘤及肿瘤样病变

发布时间：2018-05-14 03:39

  本文选题：脊柱肿瘤 + 体层摄影术　； 参考：《中国医学影像技术》2015年04期

【摘要】：目的探讨CT能谱曲线鉴别诊断脊柱恶性肿瘤与非恶性肿瘤及肿瘤样病变的价值。方法对38例经手术或穿刺病理证实的脊柱肿瘤及肿瘤样病变患者行能谱CT扫描,包括非恶性组18例,其中良性和中间型肿瘤及肿瘤样病变分别为12例和6例;恶性组20例。获得单能量图像,生成CT能谱曲线,计算40~140keV不同能级水平下的CT值和能谱曲线斜率。同时获得病变在混合能量图像的静脉期CT值。对所得CT值和能谱曲线斜率进行统计学分析。结果 40~80keV非恶性组CT值分别为(197.97±95.69)HU、(141.30±63.66)HU、(105.78±44.04)HU、(84.21±32.65)HU、(68.92±26.16)HU,恶性组CT值分别为(321.86±97.97)HU、(225.46±72.42)HU、(159.98±50.03)HU、(120.53±41.69)HU、(96.59±37.86)HU。40~80keV条件下,非恶性组与恶性组相同能级CT值差异均有统计学意义(P均0.05);90~140keV条件下,非恶性组与恶性组相同能级CT值差异均无统计学意义(P均0.05)。非恶性组能谱曲线斜率为1.58±0.89,低于恶性组能谱曲线斜率(2.76±0.83;t=-3.48,P=0.002)。非恶性组与恶性组混合能量图像的CT值差异无统计学意义(t=-1.19,P=0.250)。结论 CT能谱曲线对鉴别恶性与非恶性脊柱肿瘤及肿瘤样病变有一定价值,具有较好的应用前景。
[Abstract]:Objective to study the value of CT energy spectrum in differentiating spinal malignant tumor from non malignant tumor and tumor-like lesion. Methods EDS CT scans were performed in 38 patients with spinal tumors and tumor-like lesions confirmed by operation or puncture pathology, including 18 cases of non-malignant group, including 12 cases of benign and 6 cases of benign and intermediate tumors and 6 cases of tumor-like lesions, and 20 cases of malignant group. The single energy image is obtained and the CT energy spectrum curve is generated. The CT value and the slope of the energy spectrum curve are calculated at different energy levels of 40~140keV. At the same time, the CT values of the lesions in the mixed energy images were obtained. The CT value and the slope of the energy spectrum curve were analyzed statistically. 缁撴灉 40~80keV闈炴伓鎬х粍CT鍊煎垎鍒�涓�(197.97卤95.69)HU,(141.30卤63.66)HU,(105.78卤44.04)HU,(84.21卤32.65)HU,(68.92卤26.16)HU,鎭舵，

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