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128层双源CT3种扫描模式下冠状动脉CTA的显像价值比较 被引量:3
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作者 王娟 《中国CT和MRI杂志》 2015年第12期22-24,47,共4页
目的探讨128层双源CT3种扫描模式下冠状动脉CT血管造影(CTA)的显像价值差异。方法选取行冠状动脉CTA检查的123例患者为研究对象,采用随机数字表法将其分成A、B、C三组,每组各41例。A组采用回顾性心电门控低螺距螺旋(LS)模式扫描,B组采... 目的探讨128层双源CT3种扫描模式下冠状动脉CT血管造影(CTA)的显像价值差异。方法选取行冠状动脉CTA检查的123例患者为研究对象,采用随机数字表法将其分成A、B、C三组,每组各41例。A组采用回顾性心电门控低螺距螺旋(LS)模式扫描,B组采用前瞻性心电触发序列(S)模式扫描,C组采用的高螺距螺旋(FS)模式扫描。比对三组患者不同扫描模式下图像质量、扫描时间、辐射剂量长度乘积(DLP)及有效剂量(ED)差异。结果 1根据15段分法,此次入组的123例患者共评价1736个冠状动脉节段,三组患者图像质量主观评分及图像质量优良率对比均无统计学意义(P>0.05);2三组患者中A组扫描时间、DLP及ED均显著高于其他两组,其次为B组,C组则最低,组间对比差异具有统计学意义(P<0.05)。结论 128层双源CT的LS、S、FS等三种扫描模式均具有理想的显像价值,图像质量良好;其中FS模式较S及LS模式辐射剂量较低,可作为实现低辐射剂量冠状动脉CTA检查的有效手段应用于临床诊疗工作中,以提升患者预后水平。 展开更多
关键词 128层双源CT 3种扫描模式 冠状动脉 CTA 显像价值
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第二代双源CT三种扫描模式下冠状动脉CTA的显像价值分析
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作者 席志明 《现代医用影像学》 2016年第2期319-321,共3页
目的:分析西门子第二代128层双源CT三种扫描模式下冠状动脉CTA的显像价值。材料与方法:将2015年5月-2016年1月于本院进行冠状动脉CTA检查的80例患者,按照不同扫描模式分为三组,Ⅰ组(30例)采用LS扫描模式,Ⅱ组(28例)采用S扫描模式,Ⅲ组(2... 目的:分析西门子第二代128层双源CT三种扫描模式下冠状动脉CTA的显像价值。材料与方法:将2015年5月-2016年1月于本院进行冠状动脉CTA检查的80例患者,按照不同扫描模式分为三组,Ⅰ组(30例)采用LS扫描模式,Ⅱ组(28例)采用S扫描模式,Ⅲ组(22例)采用FS扫描模式,对比三组扫描长度、扫描时间、图像质量评分和辐射剂量。结果:三组扫描长度相当(P>0.05),Ⅰ组扫描时间显著长于Ⅱ组、Ⅲ组,Ⅱ组次之,Ⅲ组最短(P<0.05);三组图像质量评分对比差异均无统计学意义(P>0.05);Ⅰ组辐射剂量即DLP、ED与CTDIvol均显著高于Ⅱ组、Ⅲ组,Ⅱ组次之,Ⅲ组最小(P<0.05)。结论:128层双源CT三种扫描模式图像质量均良好,其中FS扫描模式辐射剂量小于LS、S扫描模式,可实现低辐射剂量冠状动脉CTA检查的有效方式,可广泛应用于临床诊疗工作中。 展开更多
关键词 128层双源CT LS FS S 冠状动脉CTA 显像价值
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Predictive value of ^(18)F-fluorodeoxyglucose PET/CT for transarterial chemolipiodolization of hepatocellular carcinoma 被引量:8
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作者 Myeong Jun Song Si Hyun Bae +7 位作者 Ie Ryung Yoo Chung-Hwa Park Jeong Won Jang Ho Jong Chun Byung Gil Choi Hae Giu Lee Jong Young Choi Seung Kew Yoon 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第25期3215-3222,共8页
AIM: To investigate the correlation of 18F-fluorodeoxy- glucose (18F-FDG) positron emission tomography (PET) with clinical features and the prediction of treatment response. METHODS: A total of 83 hepatocellular... AIM: To investigate the correlation of 18F-fluorodeoxy- glucose (18F-FDG) positron emission tomography (PET) with clinical features and the prediction of treatment response. METHODS: A total of 83 hepatocellular carcinoma (HCC) patients undergoing 18F-FDG PET before transar- terial chemolipiodolization with systemic chemo-infusion between October, 2006 and May, 2009 were retrospec-tively enrolled. The patients included 68 men and 15 women (mean age, 60 ~ 10.7 years). The effect of 18F- FDG-monitored PET uptake on clinical features and on the evaluated treatment response was ascertained with modified Response Evaluation Criteria in Solid Tumors. The PET parameters of maximal standardized uptake value of the tumor (Tsuvmax), the ratio of the tumor maximal standardized uptake value (SUV) to the liver maximal SUV (Tsuvmax/Lsuwax) and the ratio of tumor maximal SUV to the liver mean SUV (msuvmax/LSUVrnean) were tested as predictive factors. RESULTS: Among the 3 SUV parameters, the TSUV- =maxdLsuvmean ratio (cutoff value of 1.90) was significantly associated with tumor burden including tumor size, tu- mor number, α-fetoprotein levels and tumor stage (P 〈 0.001, P = 0.008, P = 0.011, P 〈 0.001, respectively). The objective response rates in patients with a high SUV ratio (≥ 1.90) were significantly better than those with a low SUV ratio (〈 1.90) (P = 0.020). The overall survival rates of patients exhibiting a low Tsuvmax/Lsu- Vmean ratio (〈 1.90) and those with a high SUV ratio (≥1.90) was 38.2 and 10.3 mo, respectively (P 〈 0.01). However, the time to progression showed no significant difference between the groups (P = 0.15). CONCLUSION: 18F-FDG PET can be an important predictor of HCC treatment. In particular, the Tsuvmax/ Lsuwean ratio (cutoff value of 1.90) can provide useful information in treatment prognosis for HCC patients treated with Iocoregional therapy. 展开更多
关键词 18F-fluorodeoxyglucose positron emissiontomography Transarterial chemolipiodolization withsystemic chemo-infusion Treatment response Predic-tive factor Overall survival
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Differential Diagnosis Value of lSF-FDG Imaging in Lung Histoplasmosis and Lung Cancer
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作者 Zelai He Xiaoiie Wu +2 位作者 Jingwen Huang Wenjun Chen Jian Wu 《Journal of Pharmacy and Pharmacology》 2016年第7期289-292,共4页
In order to confirm the accuracy of ECT (emission computed tomography) scanning imaging in the diagnosis of lung histoplasmosis is higher than CT (computed tomography) scan. We retrospect a lung histoplasmosis pat... In order to confirm the accuracy of ECT (emission computed tomography) scanning imaging in the diagnosis of lung histoplasmosis is higher than CT (computed tomography) scan. We retrospect a lung histoplasmosis patient, he was examined by the CT scan and ECT scanning, respectively. Results showed that lung cancer for CT diagnosis and large benign lesions for 18F-FDG (18F-fluorodeoxyglucose) ECT diagnosis. This indicated that the ECT diagnosis for benign lesions in the lung maybe have higher accuracy than CT scan. 展开更多
关键词 Computed tomography lSF-FDG X-ray lung cancer lung histoplasmosis.
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Use of gated myocardial perfusion imaging to assess clinical value of Xinmailong injection in chronic congestive heart failure 被引量:13
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作者 Yan Liu Zhiqian Wang +1 位作者 Wenliang Xiao Yuan Li 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2014年第5期555-559,共5页
OBJECTIVE: This study used gated myocardial perfusion imaging(G-MPI) to assess the clinical value of Xinmailong injection in chronic congestive heart failure(CHF).METHODS: A total of 102 CHF patients were randomly div... OBJECTIVE: This study used gated myocardial perfusion imaging(G-MPI) to assess the clinical value of Xinmailong injection in chronic congestive heart failure(CHF).METHODS: A total of 102 CHF patients were randomly divided into the control group(n=51) and the Xinmailong group(n=51). Patients in the control group were routinely treated. Patients in the Xinmailong group were additionally treated with Xinmailong injection in addition to routine treatment. Before and 3 months after treatment, G-MPI was used to determine changes in the left ventricular ejection fraction(LVEF), left ventricular end-diastolic volume(LVEDV) and left ventricular end-systolic volume(LVESV). Fourteen days after treatment, changes in plasma brain natriuretic peptide(BNP) levels were determined.RESULTS: Before treatment, there were no significant differences in LVEF, LVEDV, LVESV, and BNP levels between the two groups(all P>0.05). After treatment, LVEDV, LVESV, and BNP levels were significantly lower, and LVEF was significantly higher in the Xinmailong group than in the control group(all P<0.05).CONCLUSION: Additional use of Xinmailong injection in addition to routine treatment improves cardiac function of CHF patients. Because of the safety and effectiveness of Xinmailong injection, this therapy should be promoted. 展开更多
关键词 Myocardial perfusion imaging Heartfailure Natriuretic peptide brain Xinmailong injec-tion
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