本文選題：磁共振成像 + 心耳　； 參考：《中國(guó)介入影像與治療學(xué)》2015年11期

【摘要】：目的探討左心耳的MR檢查定位方法及掃描序列。方法收集接受左心耳MR檢查的患者30例,采用Siemens Skyra 3.0T超導(dǎo)MR成像系統(tǒng),對(duì)患者心臟行黑血和(或)亮血多層、多方位掃描,獲取左心耳的標(biāo)準(zhǔn)層面,并進(jìn)行亮血電影序列觀察心臟的運(yùn)動(dòng)功能,對(duì)比劑填充像及充盈像掃描觀察對(duì)比劑動(dòng)態(tài)填充和充盈情況。于圖像工作站對(duì)掃描定位及圖像質(zhì)量進(jìn)行評(píng)價(jià)。結(jié)果 30例患者均未進(jìn)行心律控制,并在屏氣(26例)或自由呼吸(4例)的情況下順利完成檢查,平均檢查時(shí)長(zhǎng)(19±5)min。2D黑血HASTE序列圖像優(yōu)良25例,出現(xiàn)慢血流偽影并影響診斷5例。2D亮血TrueFISP序列圖像滿足診斷要求28例,出現(xiàn)較重的磁敏感偽影經(jīng)較準(zhǔn)后偽影去除2例。Cine-TrueFISP序列的所有圖像均可滿足診斷要求,Dynamic-Turbo-FLASH序列圖像良好30例,IR-TrueFISP序列圖像滿足診斷要求30例,其中圖像質(zhì)量?jī)?yōu)22例。經(jīng)多序列綜合評(píng)定,30例患者的圖像信息均滿足診斷要求。結(jié)論在不控制受檢者心率、屏氣或自由呼吸的情況下,采用3.0T MR高SNR的優(yōu)勢(shì),采用多層、多方位定位及多種快速成像序列,可得到完整顯示左心耳的滿意圖像。
[Abstract]:Objective to study the location and scanning sequence of left atrial auricle. Methods Siemens Skyra 3.0T superconducting Mr imaging system was used in 30 patients with left atrial appendage Mr examination. The patients' heart was scanned by multi-layer and multi-directional scanning of black blood and / or bright blood. The standard level of left atrial appendage was obtained. The motion function of the heart was observed by bright blood film sequence, and the dynamic filling and filling of contrast agent were observed by contrast agent filling image and filling image scanning. Scan location and image quality were evaluated on image workstation. Results all the 30 patients had no cardiac rhythm control and completed the examination successfully under the condition of breath-holding in 26 cases or free breathing in 4 cases. The average examination time was 19 鹵5)min.2D black blood HASTE sequence in 25 cases. Slow flow artifact appeared and affected the diagnosis of 5 cases. 2D bright blood TrueFISP sequence images met the diagnostic requirements in 28 cases. All images of Cine-TrueFISP sequence can meet the diagnostic requirements. 30 cases with good image quality of IR-TrueFISP sequence can meet the diagnostic requirements, among which 22 cases have excellent image quality. The image information of 30 patients met the diagnostic requirements. Conclusion under the condition of not controlling heart rate, holding breath or breathing freely, using 3.0T Mr with high SNR, using multi-layer, multi-orientation location and many kinds of fast imaging sequence, the satisfactory image of left atrial auricle can be obtained.
【作者單位】： 徐州市中心醫(yī)院MR室;
【分類號(hào)】：R331.31;R445.2

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本文編號(hào)：1937788