【摘要】：目的研究MRI與CT診斷不同病理分期前列腺癌患者的準(zhǔn)確率。方法選取我院61例經(jīng)確診的前列腺癌患者為研究對象,均接受CT平掃/增強(qiáng)掃描(雙期動(dòng)態(tài)掃描)以及MRI掃描,比較兩種檢測方式對A/B、C/D期前列腺癌的檢測準(zhǔn)確性。結(jié)果本次研究中61例患者A期3例、B期16例、C期18例、D期24例。CT平掃/增強(qiáng)掃描對A/B檢出率為47.37%,漏診、誤診10例,6例誤診為前列腺增生,另4例漏診,MRI對A/B檢出率為89.47%,漏診2例均為漏診,兩者比較MRI檢出率顯著高于CT(P0.05),CT平掃/增強(qiáng)掃描對C/D檢出率為92.86%,誤診3例包括2例前列腺增生,1例膀胱癌;MRI對C/D檢出率為95.24%,誤診2例均診斷為前列腺增生,兩者檢出率比較MRI稍高,但差異無統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論 MRI診斷A、B期前列腺癌的準(zhǔn)確性較CT平掃及增強(qiáng)掃描明顯較高,主要因A、B期前列腺癌僅前列腺體積增大,密度無明顯變化,且邊緣較模糊對CT診斷產(chǎn)生影響,兩種檢測方式均可準(zhǔn)確檢出C、D期前列腺癌,考慮與癌組織已穿破被膜,前列腺的形態(tài)變化明顯有關(guān),但MRI可對被膜是否被癌細(xì)胞侵襲進(jìn)行判斷,因此較CT診斷價(jià)值更高。
[Abstract]:Objective to study the accuracy of MRI and CT in the diagnosis of prostate cancer with different pathological stages. Methods Sixty-one patients with prostate cancer in our hospital were examined by plain / enhanced CT scan (dual phase dynamic scan) and MRI. The accuracy of the two methods in detecting A / B / C / D prostate cancer was compared. Results in this study, there were 61 patients with stage A, 3 patients with stage B, 16 patients with stage C, 18 patients with stage D, 24 patients with stage D. The detection rate of A / B by plain scan / enhanced CT scan was 47.37B, missed diagnosis, misdiagnosis of 10 cases with benign prostatic hyperplasia, 6 cases with misdiagnosis as benign prostatic hyperplasia. In the other 4 cases, the detectable rate of missed MRI was 89.47% for A / B, and 2 cases for missed diagnosis. The detection rate of MRI was significantly higher than that of CT (P0.05) CT plain scan / enhanced scan (P 0.05). The detection rate of C / D in 3 misdiagnosed cases, including 2 cases of benign prostatic hyperplasia and 1 case of bladder cancer, was 95.24%, and 2 cases of misdiagnosis were all diagnosed as benign prostatic hyperplasia. The detection rate was slightly higher than MRI, but the difference was not statistically significant (P0.05). Conclusion the accuracy of MRI in the diagnosis of Aneb stage prostate cancer is significantly higher than that of CT plain scan and enhanced scan. The main reason is that the volume of prostate is increased, the density of prostate is not changed obviously, and the margin is blurred, which has an effect on CT diagnosis. Both methods can accurately detect stage D prostate cancer, which is related to the morphological changes of prostate gland which has been perforated by the tissue of cancer. However, MRI can judge whether the membrane is invaded by cancer cells, so it is more valuable than CT in the diagnosis of prostate cancer.
【作者單位】： 廣東省湛江市第二人民醫(yī)院醫(yī)學(xué)影像科;
【分類號(hào)】：R737.25;R445.2;R730.44

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