20xx年醫(yī)學(xué)專題—腦血管講座-資料下載頁
2024-11-18 23:16本頁面
【正文】 典型分水嶺梗死：三個不同(b249。 t243。nɡ)病人,右半球前分水嶺梗塞，累及(lěij237。)ACA與 MCA皮質(zhì)表層狹長區(qū)域,CT,T2,右半卵園中心：內(nèi)分水嶺梗死（念珠狀）,白質(zhì)型,DWI：同一患者不同切面,皮質(zhì)型,混合型,不同切面,第五十九頁，共六十八頁。,centrum infarcts in a rosary configuration consistent with internal border zone infarcts in a patient with hypotension,Note left superior parietal lobule infarct in the expected location of the middle cerebral artery (MCA)/posterior cerebral artery (PCA) cortical border zone.,念珠(ni224。nzhū),internal border zone infarcts,DWI,第六十頁，共六十八頁。,This young patient had prolonged hypotension as a result of a drug overdose,MRI confirmed these changes with restricted diffusion and high T2 signal seen deep to the cortex,This is a characteristic appearance of an internal watershed infarct,第六十一頁，共六十八頁。,Deep watershed infarction in a patient with an occlusion of the right internal carotid artery,左側(cè)3個連續(xù)(li225。nx249。)切面 On the left three consecutive CTimages of a patient with an occlusion of the right internal carotid artery,This pattern of deep watershed infarction is quite common and should urge you to examine the carotids,The hypoperfusion in the right hemisphere resulted in multiple internal border zone infarctions,第六十二頁，共六十八頁。,Borderzone infarcts due to occlusion of the internal carotid,In patients with abnormalities that may indicate borderzone infarcts, always study the images of the carotid artery to look for abnormal signal,右半球深白質(zhì)(b225。izh236。) 分水嶺小梗塞,同時出現(xiàn)(chūxi224。n)2類梗塞,MCAPCA皮質(zhì)(p237。zh236。)分水嶺梗塞,右頸內(nèi)動脈閉塞后出現(xiàn)異常信號,第六十三頁，共六十八頁。,MCAPCA皮質(zhì)(p237。zh236。)分水嶺梗塞,On the left another example of small infarctions in the deep borderzone and in the cortical borderzone between the MCA and PCAterritory in the left hemisphere,第六十四頁，共六十八頁。,diffusion weighted MRI images,PCA territory,MCA territory,ACA territory,第六十五頁，共六十八頁。,ACA MCA Watershed Infarcts on MRI DWI Sequence,第六十六頁，共六十八頁。,FLAIR,DWI,第六十七頁，共六十八頁。,內(nèi)容(n232。ir243。ng)總結(jié),Watershed infarcts or。供應(yīng)額葉頂葉內(nèi)側(cè)部分和胼胝(pi225。nzhī)體前部、基底節(jié)和內(nèi)囊。DWI。小腦:小葉,前小腦小部分。外下腦橋，中小腦腳及小腦半球前表面（包括小葉）高信號。左小腦中部高信號,累及小腦蚓部和小腦。http://jnm.snmjournals.org/cgi/content/figsonly/46/12/1973,第六十八頁，共六十八頁
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