Neuroradiotegy Cerebral Vessel Disease Zheng Yu King department of Radiology Peking Union Medical College Hospital
NeuroradiologyCerebral Vessel Disease Zheng Yu King department of Radiology Peking Union Medical College Hospital
Background DSA CT ·MRI
Background • DSA • CT • MRI
Selective Angiography Vascular anatomy Diagnosis and analysis For Interventional procedure
Selective Angiography • Vascular anatomy • Diagnosis and analysis • For Interventional procedure
Basic techniques Traditional techniques. C.T. M.R.I. C.T.A.M.R.A. Functional Imaging. IRI
Basic techniques • Traditional techniques. • C.T. • M.R.I. • C.T.A. & M.R.A. • Functional Imaging
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FUC DSPITAL 双T4 HSP TA, D5R191 T3,7 9:8 19t 192 555标 K 2 2 2 064 L.INE.CATCRIC L.DC.SATRID 既 8 00406别18 55 )1千装学17 5的 7.163m FUC BOGPITAL OS2TCH型 ( 867 4 间T资 1T. 5,好 #2 2 '7 'e阿 L.III.CAICRIE L.INI.CATORID 6 储产9. 6C84L86e9H124 10L45479172 731烟 61h
CTA(CT血管造影 静脉注射CT造影剂 在合适的时间采集薄 层CT图像 将原始图像进行3D后 处理 获得CTA图像 优势（与DSA比较）： 一立体，直观，易重建 显示钙化和骨质结构 基本无创
CTA（CT血管造影） • 静脉注射CT造影剂 • 在合适的时间采集薄 层CT 图像 • 将原始图像进行3D后 处理 • 获得CTA图像 • 优势（与DSA比较）： – 立体，直观，易重建 – 显示钙化和骨质结构 – 基本无创
MR Angiography Ultra Fast MRA Large FOV,contrast enhanced,3D MRA, imaging volume covered in 13 seconds Acquired using ultra-fast SmartPrep MRA technique and specially combined phased array coils Valuable for evaluating pulmonary arteries and carotids in a single examination GE Medical Systems PREVIOUS EXIT
Large FOV, contrast enhanced, 3D MRA, imaging volume covered in 13 seconds Acquired using ultra-fast SmartPrep MRA technique and specially combined phased array coils Valuable for evaluating pulmonary arteries and carotids in a single examination MR Angiography - Ultra Fast MRA HOME NEXT PREVIOUS EXIT
MR Angiography Elliptical Centric View Orde Elliptical-Centric View Ordering TR/TE=6.6/1.4ms 256x224 20x15 cm FOV 68 slices,1.4mm thick Imaging time 44 sec Image courtesy of Mayo Clinic Rochester,MN,John Huston III,MD GE Medical Systems PREVIOUS EXIT
Elliptical-Centric View Ordering TR/TE = 6.6 / 1.4 ms 256x224 20x15 cm FOV 68 slices, 1.4mm thick Imaging time = 44 sec Image courtesy of Mayo Clinic Rochester, MN, John Huston III, MD MR Angiography - Elliptical Centric View Ordering HOME NEXT PREVIOUS EXIT
Perfusion CT (CT脑灌注) MIP-flow volume time to peak 静脉团注造影剂，在感兴趣区连续动态 扫描，获得的大量数据经后处理，产生时 间-强度曲线，由此算出脑血流速率、脑 血流量及峰值时间等具诊断意义的参数。 已有现成软件包。 CBF下降，CBV升高，TTP延迟
MIP－flow－volume－time to peak 静脉团注造影剂，在感兴趣区连续动态 扫描，获得的大量数据经后处理，产生时 间-强度曲线，由此算出脑血流速率、 脑 血流量及峰值时间等具诊断意义的参数。 已有现成软件包。 Perfusion CT (CT脑灌注) CBF下降，CBV升高，TTP延迟