CAJ | 학술논문

目的：非增强磁共振血管成像是当前国内外研究的热点。文中探讨流入翻转恢复序列磁共振血管成像在肾动脉检查中的扫描参数优化。方法收集2013年12月至2014年5月间南京军区南京总医院60例行肾动脉成像的患者，并按结果示有无狭窄分为狭窄组12例和无狭窄组48例。对每组同一患者利用不同的流入翻转恢复时间进行扫描，时间设定分别为1200、1300和1400 ms，进而得到同一患者的3组肾动脉图像。通过2名有经验的影像科医师对图像进行评估，选出最佳图像，从而得出2组的最佳流入翻转恢复时间。结果狭窄组患者选择1400 ms的流入翻转时间可得到最佳图像，无狭窄组患者选择1200 ms的流入翻转恢复时间可得到最佳图像。结论流入翻转恢复序列磁共振动脉成像通过优化参数能较好显示肾动脉及其分支，具有较好的临床实用性，尤其对于肾功能不全患者可成为首选检测方法。
목적：비증강자공진혈관성상시당전국내외연구적열점。문중탐토류입번전회복서렬자공진혈관성상재신동맥검사중적소묘삼수우화。방법수집2013년12월지2014년5월간남경군구남경총의원60례행신동맥성상적환자，병안결과시유무협착분위협착조12례화무협착조48례。대매조동일환자이용불동적류입번전회복시간진행소묘，시간설정분별위1200、1300화1400 ms，진이득도동일환자적3조신동맥도상。통과2명유경험적영상과의사대도상진행평고，선출최가도상，종이득출2조적최가류입번전회복시간。결과협착조환자선택1400 ms적류입번전시간가득도최가도상，무협착조환자선택1200 ms적류입번전회복시간가득도최가도상。결론류입번전회복서렬자공진동맥성상통과우화삼수능교호현시신동맥급기분지，구유교호적림상실용성，우기대우신공능불전환자가성위수선검측방법。
Objective Non-contrast enhanced magnetic resonance angiography ( MRA) has become the focus of research at home and abroad .The aim of the article was to optimize the scan parameters of renal artery with inflow-sensitive inversion recovery ( IF-IR) MRA. Methods 30 cases of renal artery patients into two groups were collected from December 2013 to May 2014 in our hospi-tal.They were divided into stenosis group(n=12) and non-stenosis group(n=48).IFIR-MRA sequences were carried out on each patient by using various BSP-TI with 1200,1300 and 1400 ms, all other parameters were identical .The image signal to noise ratio, a renal artery branch and venous artifact were evaluated by two experienced radiologists , and the best BSP-TI was obtained from different groups. Results BSP-TI=1400 ms was optimal for renal artery stenosis group while 1200 ms was the most suitable for non-stenosis group. Conclusion IFIR-MRA of renal artery can achieve better image quality of renal artery and its branches and it is feasible in clinical routine practice , especially for those patients with renal insufficiency .