A Preliminary Study of Gadobenate Dimeglumine Enhanced Magnetic Resonance Angiography Detection of Prostatic Artery Anatomy
A Preliminary Study of Gadobenate Dimeglumine Enhanced Magnetic Resonance Angiography Detection of Prostatic Artery Anatomy
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钆贝酯二甲葡胺增强磁共振血管造影检测前列腺动脉解剖的初步研究
DOI：
10.1166/jmihi.2020.2974
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发表时间：
2020-03
影响因子：
--
通讯作者：
Ye Huiyi
中科院分区：
文献类型：
--
作者：
Shen Yanguang;Zhang Jinlong;Song Peng;Ma Lu;Zhong Yan;Zhang Xiaojing;Wang Haiyi;Wang Yingwei;Zhang Hongtao;Sun Zhonghua;Ye Huiyi
目的：探讨前列腺动脉（PA）的解剖学特点及其在磁共振血管造影（CE-MRA）中的应用价值。方法：对7例患者行盆腔3. 0 Tce-MRA和选择性盆腔数字减影检查
前列腺动脉栓塞（PAE）前行血管造影。4例患者接受了透视触发的ce-MRA，3例患者接受了时间分辨造影剂动力学成像。在MRA后一周内进行PAE。两名放射科医生独立分析MRA结果。所分析的
参数包括独立PA的数量及其起源、轨迹和与相邻动脉的闭塞。用信噪比（SNR）和对比度噪声比（CNR）评价髂总动脉及其分支（包括前列腺动脉）的图像质量。
两组之间的比较。结果：7例共显示17个肺动脉瘤。MRA对双侧肺动脉瘤的诊断准确率为58.82%。71.42%的患者单侧仅有一个PA，7.14%的患者有独立的PA。10个PA的平均直径为
1.39 29.41%的动脉起源于闭孔动脉，29.41%的动脉起源于阴部动脉。双侧PA对称3例，不对称4例。两组图像质量差异无统计学意义，
右髂总动脉和右髂内动脉的信号强度以及左髂总动脉的SNR和CNR。结论：ce-MRA能够检出PA，对PAE的诊断有指导意义。
Background: To describe the feasibility of anatomy and imaging findings of the prostatic arteries (PAs) on contrast-enhanced MR angiography (ce-MRA). Methods: This prospective study enrolled 7 patients undergoing pelvic 3.0 T ce-MRA and selective pelvic digital subtraction
angiography before prostatic artery embolization (PAE). Four patients underwent fluoroscopically triggered ce-MRA and 3 patients underwent time-resolved imaging of contrast kinetics. PAE was performed within one week of MRA. Two radiologists independently analyzed MRA findings. The analyzed
parameters included the number of independent PAs and their origin, trajectory, and anastomoses with adjacent arteries. Image quality in terms of signal-to-noise ratio (SNR) and contrast-tonoise ratio (CNR) to visualize common iliac artery and its branches including prostatic arteries was
compared between the two groups. Results: A total of 17 PAs were demonstrated in 7 cases. The diagnostic accuracy of MRA in detecting bilateral PAs was 58.82%. Moreover, 71.42% of the patients had only one PA in one side, and 7.14% had independent PAs. The mean diameter of 10 PAs was
1.39 ± 0.46 mm. About 29.41% of PAs originated from the obturator arteries and 29.41% from the pudendal arteries. Bilateral PAs were found to be symmetric in 3 cases and asymmetric in 4 cases. No significance difference was found between the image quality of the two groups, except for
the signal intensity of the right common iliac artery and right internal iliac artery and SNR and CNR of the left common iliac artery. Conclusions: This study shows that ce-MRA is able to detect PA, and can provide guidance for PAE.