【摘要】：目的研究膝關(guān)節(jié)磁敏感加權(quán)成像(SWI)對(duì)膝關(guān)節(jié)半月板撕裂的診斷效能。方法 34例臨床懷疑膝關(guān)節(jié)半月板損傷的患者,術(shù)前行3T磁共振常規(guī)序列包含T_2WI,增加SWI序列掃描。兩名骨關(guān)節(jié)的放射科醫(yī)師以T_2WI序列和SWI序列分別對(duì)半月板進(jìn)行分析診斷,第一次診斷后的半個(gè)月再次分別獨(dú)立對(duì)半月板進(jìn)行分析診斷。以膝關(guān)節(jié)鏡為金標(biāo)準(zhǔn),分別計(jì)算T_2WI和SWI兩次診斷半月板撕裂的平均敏感性、特異性和準(zhǔn)確性,分析其一致性。結(jié)果 T_2WI和SWI診斷膝關(guān)節(jié)半月板撕裂的平均敏感性、特異性和準(zhǔn)確性如下:T_2WI—醫(yī)師1,90%,92.3%和91.5%;醫(yī)師2,84.4%,89%和87.5%;SWI—醫(yī)師1,87.8%,95.6%和93%;醫(yī)師2,87.8%,92.3%和90.8%。兩位醫(yī)師T_2WI和SWI兩次診斷半月板撕裂具有自身極好的一致性(T_2WI醫(yī)師1,k=0.854;醫(yī)師2,k=0.819;SWI醫(yī)師1,k=0.882;醫(yī)師2,k=0.820)。兩位醫(yī)師運(yùn)用T_2WI和SWI診斷半月板撕裂具有極好的一致性(T_2WI,k=0.967;SWI,k=0.885)。T_2WI和SWI診斷半月板撕裂的診斷效果無顯著性差異(醫(yī)師1,P=0.99,醫(yī)師2,P=0.25)。結(jié)論磁共振SWI序列在膝關(guān)節(jié)半月板撕裂的臨床診斷具有一定的意義。
[Abstract]:Objective to study the diagnostic efficacy of magnetic sensitivity weighted imaging (SWI) for meniscus tear of knee joint. Methods 34 patients with meniscus injury suspected of knee joint were examined with 3T MRI routine sequence including T _ 2WI and SWI sequence before operation. The radiologists of two osteoarticular radiologists analyzed and diagnosed meniscus by T_2WI sequence and SWI sequence respectively. The meniscus was analyzed and diagnosed separately half a month after the first diagnosis. Using knee arthroscopy as gold standard, the average sensitivity, specificity and accuracy of T_2WI and SWI in the diagnosis of meniscus tear were calculated, and the consistency was analyzed. Results the average sensitivity, specificity and accuracy of T_2WI and SWI in the diagnosis of meniscus tear of knee joint were as follows: T2WI- doctor 190% and 91.5%; Dr. SWI- had 95.6% and 93.6% of the total, and 87.8% and 90.8% of the doctors had 87.8% and 90.8%, 92.3% and 90.8%, respectively. The two doctors, T_2WI and SWI, had excellent consistency in their own diagnosis of meniscus tear (Dr. T_2WI: 1 / 0. 854; Doctor\ = 2 / 19 = 1 / kg = 0. 882; Doctor\ = 2 / 1 = 0. 820). The diagnosis of meniscus tear by T_2WI and SWI was very consistent between the two physicians (T _ 2WI _ I _ KT _ (0.967); " SWI,k=0.885). There was no significant difference between T_2WI and SWI in the diagnosis of meniscus tear (doctor 1, P 0. 99, doctor 2, P 0. 25). Conclusion MRI SWI sequence has a certain significance in the diagnosis of meniscus tear of knee joint.
【作者單位】： 中國人民解放軍第三軍醫(yī)大學(xué)第一附屬醫(yī)院放射科;
【分類號(hào)】：R445.2;R684

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