本文關(guān)鍵詞： 磁共振成像 延遲增強(qiáng) 心肌強(qiáng)化　出處：《中國循環(huán)雜志》2017年09期 　論文類型：期刊論文

【摘要】：目的 :對比運(yùn)動矯正相位敏感反轉(zhuǎn)恢復(fù)序列(PSIR SSFP MOCO)與快速擾相梯度回波相位敏感反轉(zhuǎn)恢復(fù)序列(PSIR segmented)在磁共振心肌延遲增強(qiáng)中的優(yōu)勢。方法 :回顧56例同時采用PSIR segmented(PSIR segmented組)和PSIR SSFP MOCO(PSIR SSFP MOCO組)兩種掃描方式行磁共振心肌延遲增強(qiáng)掃描的患者的影像資料,對比分析兩組圖像的主觀質(zhì)量評分(4級),并配對對比分析兩組中正常心肌、異常強(qiáng)化心肌及左心室腔內(nèi)圖像的信噪比和相對信噪比。結(jié)果 :PSIR segmented組圖像質(zhì)量主觀評分結(jié)果:4分、3分、2分和1分組依次占28.6%、41.1%、28.6%和1.8%。PSIR SSFP MOCO組圖像質(zhì)量主觀評分為4分的比例為96.4%,顯著高于PSIR segmented組(P0.001),3分占3.6%,1分或2分均為0%。PSIR SSFP MOCO組圖像正常心肌信噪比(4.70±3.47 vs 3.64±3.2,P=0.074)、異常心肌信噪比(52.58±36.58 vs 27.65±18.47,P0.001)及左心室血池的信噪比(40.52±33.97 vs 23.14±11.46,P0.001)均高于PSIR segmented組。PSIR SSFP MOCO組圖像異常強(qiáng)化心肌與正常心肌的相對信噪比(47.46±33.97 vs 23.75±16.68,P0.001)、異常強(qiáng)化心肌與左心室血池的相對信噪比(8.53±17.77 vs 4.54±10.10,P=0.181)及左心室血池與正常心肌的相對信噪比(35.82±25.72 vs 19.49±9.44,P0.001)也均顯著高于PSIR segmented組。結(jié)論 :與PSIR segmented序列相比,采用PSIR SSFP MOCO序列能夠獲得更高比例的高質(zhì)量心肌增強(qiáng)延遲圖像。
[Abstract]:Objective: to compare the PSIR SSFP moco sequence with the fast phase gradient echo phase sensitive inversion recovery sequence (PSIR SSFP moco). The advantage of PSIR segmented in Mr myocardial delayed enhancement methods: 56 cases were treated with PSIR segmented (PSIR segmented) at the same time. PSIR segmented group and PSIR SSFP MOCO(PSIR SSFP MOCO group). Imaging data of patients with delayed Mr myocardial enhancement in two different ways. The subjective quality scores of the two groups were compared and compared with the normal myocardium in the two groups. Results the subjective score of image quality in the segmented group was 4 points and 3 points. 2 points and 1 group accounted for 28.6% and 1.8k.PSIR SSFP MOCO group respectively accounted for 41.6% and 1.8% respectively. The proportion of subjective score of image quality in PSIR SSFP MOCO group was 96.4%. It was significantly higher than that of PSIR segmented group (P 0.001), with a score of 3 (3.6%). The signal-to-noise ratio (SNR) of normal myocardium in PSIR SSFP MOCO group was 4.70 鹵3.47 vs 3.64 鹵3.2p0. 074). Abnormal myocardial signal-to-noise ratio (SNR) was 52.58 鹵36.58 vs 27.65 鹵18.47. The signal-to-noise ratio (SNR) of left ventricular blood pool was 40.52 鹵33.97 vs 23.14 鹵11.46. P0.001) was higher than that in PSIR segmented group. PSIR SSFP MOCO group. The relative signal-to-noise ratio (SNR) of abnormal enhanced myocardium and normal myocardium was higher than that of PSIR segmented group. 47.46 鹵33.97 vs 23.75 鹵16.68. The relative signal-to-noise ratio (SNR) of abnormal enhanced myocardium and left ventricular blood pool was 8.53 鹵17.77 vs 4.54 鹵10.10. The relative signal-to-noise ratio (SNR) of left ventricular blood pool to normal myocardium was 35.82 鹵25.72 vs 19.49 鹵9.44. P0.001) was significantly higher than that in PSIR segmented group. Conclusion: compared with PSIR segmented sequence. A higher proportion of high quality delayed myocardial enhancement images can be obtained by using PSIR SSFP MOCO sequence.
【作者單位】： 中國醫(yī)學(xué)科學(xué)院北京協(xié)和醫(yī)學(xué)院國家心血管病中心阜外醫(yī)院磁共振影像科;空軍總醫(yī)院磁共振科;
【基金】：首都臨床特色臨床應(yīng)用研究基金(Z151100004015141) 國家自然科學(xué)基金(81571647) 北京自然科學(xué)基金(7152124)
【分類號】：R445.2;R542.2
【正文快照】： 磁共振成像(MR)對比劑延遲強(qiáng)化(LGE)是一掃描前需進(jìn)行呼吸訓(xùn)練。患者采用仰臥位,將種檢測缺血性和非缺血性心肌病心肌壞死、心肌纖相控陣線圈置于患者前胸,胸前導(dǎo)聯(lián)心電門控技術(shù),維化的無創(chuàng)、高效且分辨率高的影像技術(shù)[1,2],廣外加呼吸門控。于對比劑(0.2 mmol/kg)注射5~10泛，

本文編號：1491168