3.0T磁共振扩散加权成像在乳腺良恶性病变鉴别诊断中的价值论文.doc

3.0T磁共振扩散加权成像在乳腺良恶性病变鉴别诊断中的价值论文.doc
【摘要】目的探讨磁共振扩散加权成像(DRI扫描仪,行SE序列和DRI. Methods To choose 10 cases of normal breases, 20 benign lesions and 37 malignant ones m2, 800 and 0 s/mm2, 500 and 0 s/mm2 in normal breasts, malignant breast lesions and benign ones ostly in the high signal (48/60, 80%), alignant lesions than benign lesions.(2)There al breast, benign and malignant lesions as m2 the malignant lesions average ADC value m2/s,benign lesion group as the average ADC value m2/s. The average ADC value (±)×10-3mm2/ same normal b value,benign and malignant groups,the corresponding difference bet ≤×10-3mm2/s (b = 1200~0s/mm2) malignant breast lesions as a diagnostic threshold, its diagnostic sensitivity of %, % specificity, accuracy %, and better consistency of pathological diagnosis (Kappa value=, P ). Conclusion DRI); diffusion aging(DRI技术在乳腺的应用不断成熟,但关于超高场强()的应用1少有报道。,。
材料与方法
~2008年3月间临床触及乳腺肿物,。良性病灶23个,其中纤维腺瘤10个,腺体增生并纤维腺瘤形成8个,导管内乳头状瘤2个,结核性肉芽肿1个,囊肿2个;年龄21~67岁,平均年龄39岁。恶性病灶37个,其中浸润性导管癌30个,浸润性小叶癌7个;年龄32~67岁,平均43岁。健康体检及自愿者10例20个乳腺作为正常对照组,无乳腺疾病史或家族史,无自觉症状,触诊未及肿块,B超检查正常。均为女性,年龄20~45岁,平均32岁。
Trio Tim ,乳腺线圈。受检者俯卧位,双侧乳腺自然悬垂于检查线圈内,用垫子适当填充固定,头足位进入主磁场。扫描范围包括双侧乳腺,常规T2RI)。DRI上b=1200s/mm2对乳腺解剖结构显示及病变定性诊断最