实用医学影像杂志
實用醫學影像雜誌
실용의학영상잡지
JOURNAL OF PRACTICAL MEDICAL IMAGING
2014年
1期
52-54
,共3页
脑出血%血管造影术%造影剂%血肿%体层摄影术,螺旋计算机
腦齣血%血管造影術%造影劑%血腫%體層攝影術,螺鏇計算機
뇌출혈%혈관조영술%조영제%혈종%체층섭영술,라선계산궤
Cerebral hemorrhage%Angiography%Contrast media%Hematoma%Tomography,spiral computed
目的:脑出血患者CT造影外渗率可提示血肿扩大,本研究评价脑灌注CT(PCT)推导表面渗透性(PS)是否可检测早期CT造影剂外渗率差异及其意义。方法20例脑出血患者入院时及入院24 h后进行CT检查,入院时进行PCT-PS扫描。采用Wilcoxon秩和检验比较下列兴趣区的PS值:①斑点征病灶;②造影剂渗漏(PCCT-L)病灶;③排除外渗的血肿;④外渗至对侧区域;⑤无外渗患者的血肿;⑥无外渗患者血肿的对侧面积。此外,比较24 h后的血肿扩展情况。结果上述6项参数的PS分别为(6.5±1.6)、(1.0±0.4)、(0.12±0.39)、(0.26±0.09)、(0.4±0.3)、(0.09±0.32)ml×min-1×(100 g)-1。斑点征病灶的PS值和PCCT-L病灶的PS与其他几项参数比较差异有统计学意义(P<0.05)。外渗阳性患者的血肿体积由(34±41)ml增加至(40±46)ml,外渗阴性患者则由(20±32)ml降至(17±27)ml。结论与PCCT-L病灶和血肿比较,PCT-PS参数检测显示CTA斑点征病灶造影剂较高外渗率,早期外渗与血肿扩展相关。
目的:腦齣血患者CT造影外滲率可提示血腫擴大,本研究評價腦灌註CT(PCT)推導錶麵滲透性(PS)是否可檢測早期CT造影劑外滲率差異及其意義。方法20例腦齣血患者入院時及入院24 h後進行CT檢查,入院時進行PCT-PS掃描。採用Wilcoxon秩和檢驗比較下列興趣區的PS值:①斑點徵病竈;②造影劑滲漏(PCCT-L)病竈;③排除外滲的血腫;④外滲至對側區域;⑤無外滲患者的血腫;⑥無外滲患者血腫的對側麵積。此外,比較24 h後的血腫擴展情況。結果上述6項參數的PS分彆為(6.5±1.6)、(1.0±0.4)、(0.12±0.39)、(0.26±0.09)、(0.4±0.3)、(0.09±0.32)ml×min-1×(100 g)-1。斑點徵病竈的PS值和PCCT-L病竈的PS與其他幾項參數比較差異有統計學意義(P<0.05)。外滲暘性患者的血腫體積由(34±41)ml增加至(40±46)ml,外滲陰性患者則由(20±32)ml降至(17±27)ml。結論與PCCT-L病竈和血腫比較,PCT-PS參數檢測顯示CTA斑點徵病竈造影劑較高外滲率,早期外滲與血腫擴展相關。
목적:뇌출혈환자CT조영외삼솔가제시혈종확대,본연구평개뇌관주CT(PCT)추도표면삼투성(PS)시부가검측조기CT조영제외삼솔차이급기의의。방법20례뇌출혈환자입원시급입원24 h후진행CT검사,입원시진행PCT-PS소묘。채용Wilcoxon질화검험비교하렬흥취구적PS치:①반점정병조;②조영제삼루(PCCT-L)병조;③배제외삼적혈종;④외삼지대측구역;⑤무외삼환자적혈종;⑥무외삼환자혈종적대측면적。차외,비교24 h후적혈종확전정황。결과상술6항삼수적PS분별위(6.5±1.6)、(1.0±0.4)、(0.12±0.39)、(0.26±0.09)、(0.4±0.3)、(0.09±0.32)ml×min-1×(100 g)-1。반점정병조적PS치화PCCT-L병조적PS여기타궤항삼수비교차이유통계학의의(P<0.05)。외삼양성환자적혈종체적유(34±41)ml증가지(40±46)ml,외삼음성환자칙유(20±32)ml강지(17±27)ml。결론여PCCT-L병조화혈종비교,PCT-PS삼수검측현시CTA반점정병조조영제교고외삼솔,조기외삼여혈종확전상관。
Objective The computed tomography angiography exosmosis rate in patients with cerebral hemor-rhage denotes hematoma enlargement, this study evaluated that whether the perfusion computed tomography (PCT) and permeability surface-area product (PS) could detect early CT contrast agent extravasation rate difference and its significance. Methods Twenty patients with cerebral hemorrhage underwent CT examination on admission and after 24 h of admission,and all patients also underwent PCT-PS scanning after 24 h of admission. Compare PS values of re-gions of interest by Wilcoxon rank as following: ①the lesions with spot sign;②the lesions with post contrast CT leak-age(PCCT-L);③the lesions eliminating leakage of hematoma; ④the lesions with extravasation leaking to contralateral region; ⑤hematoma in patients without extravasation; ⑥contralateral area of hematoma without extravasation. In ad-dition,compare the hematoma expansion after 24 h. Results PS value was (6.5 ±1.6), (1.0 ±0.4), (0.12 ±0.39), (0.26±0.09), (0.4±0.3), (0.09±0.32)ml·min-1·(100 g)-1·PS values of spot sign lesions and PCCT-L lesions were significantly different from the other regions respectively (P<0.05). Hematoma volume increased from (34 ±41) ml to (40±46) ml for extravasation-positive patients and decreased from (20±32) ml to(17±27) ml for extravasation-negative patients. Conclusion Compared with PCCT-L lesions and hematoma,the PCT-PS parameters showed a higher rate for contrast media exosmosis in CTA spot sign lesions, implying that early extravasation was associated with hematoma expansion.