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目的:评价单次激发半傅立叶采集快速自旋回波胰胆管水成像(HASTE-MRCP)的临床应用价值。方法:使用德国SIMENS 3.0TSkyra超导型磁共振对我院2014年7月—2015年7月,26例梗阻性黄疸和55例无黄疸患者行HASTEMRCP-bh、3D-MRCP,同时加扫HASTE-fs-2D-mbh斜冠、斜矢状位序列,比较两种技术的优劣势以及对诊断梗阻原因的准确性。结果:两个序列均能显示胆管病变部位、梗阻特点、近侧扩张胆管以及远侧正常胰胆管。HASTE-MRCP单层法采集空间分辨率较高、采集时间短,但受血管伪影影响较明显。常规3D-MRCP采集组织分辨率高,受呼吸运动影响大,且时间较长。结论:单层采集HASTE-MRCP成像结合常规TSE轴位相扫描可得到较高质量图像,图像质量优良,时间短,对胰胆管解剖结构及细节显示有较高的价值。而常规3D-MRCP因成像时间长,受呼吸运动影响明显,在临床受到限制。在日常工作中可用单层采集HASTE-MRCP成像取代常规3D-MRCP。
Objective: To evaluate the clinical value of single-excitation half-Fourier acquisition of fast spin-echo cholangiopancreatography (HASTE-MRCP). Methods: Twenty-six patients with obstructive jaundice and 55 patients without jaundice underwent HASTEMRCP-bh and 3D-MRCP in our hospital from July 2014 to July 2015 in our hospital with SIMTS 3.0 TS Skyra superconducting magnetic resonance imaging (SIMTS) fs-2D-mbh oblique coronal, sagittal sagittal sequence comparison of the advantages and disadvantages of the two techniques and the diagnosis of the cause of obstruction accuracy. Results: Both sequences showed bile duct lesions, obstruction characteristics, proximal dilatation and distal normal bile ducts. HASTE-MRCP single-layer method has higher spatial resolution and shorter acquisition time, but it is more affected by vascular artifacts. Conventional 3D-MRCP acquisition of tissue resolution, affected by respiratory movement, and a long time. CONCLUSION: HASTE-MRCP with single-slice acquisition and high-resolution axial TSE imaging can provide high-quality images with good image quality and short time. It is of great value to anatomical structures and details of the pancreaticobiliary duct. The conventional 3D-MRCP due to imaging a long time, significantly affected by respiratory movement, clinically limited. In routine work, single-layer acquisition of HASTE-MRCP imaging can replace conventional 3D-MRCP.